Diamond Aircraft DV 20 E 2022 Airplane Maintenance Manual
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Diamond Aircraft DV 20 E 2022 Airplane Maintenance Manual

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AIRCRAFT
DV 20 E
AIRPLANE MAINTENANCE MANUAL
Copyright © by DIAMOND AIRCRAFT INDUSTRIES, Wiener Neustadt, Austria

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  • Page 1 AIRCRAFT DV 20 E AIRPLANE MAINTENANCE MANUAL Copyright © by DIAMOND AIRCRAFT INDUSTRIES, Wiener Neustadt, Austria...
  • Page 2 This document is protected by copyright. All associated rights, in particular those of translation, reprinting, radio transmission, reproduction by photo-mechanical or similar means and storing in data processing facilities, in whole or part, are reserved. Diamond Aircraft Industries GmbH N. A. Otto-Str. 5 A-2700 Wiener Neustadt...
  • Page 3 Table of Contents DV 20 E AMM AIRCRAFT TABLE OF CONTENTS Ch/Sect Title 01-00 Introduction 02-00 Organization and Handling of the Manual 03-00 General Description of the Airplane 04-00 Airworthiness Limitations 05-00 Time Limits and Maintenance Checks 05-10 Time Limits 05-20 Scheduled Maintenance Checks 05-21...
  • Page 4 Table of Contents DV 20 E AMM AIRCRAFT 24-00 Electrical Power 24-30 DC Generation 24-31 Battery System 24-60 Static Discharging 25-00 Equipment/Furnishings 25-10 Flight Compartment 25-60 Emergency Equipment 26-00 Fire Protection 27-00 Flight Controls 27-10 Flight Controls - Ailerons and Tabs 27-20 Flight Controls - Rudder and Tab 27-30...
  • Page 5 Table of Contents DV 20 E AMM AIRCRAFT 52-00 Doors 52-10 Canopy 52-40 Access Panels 53-00 Fuselage 53-10 Fuselage Structure 55-00 Stabilizers 55-10 Horizontal Stabilizer 55-20 Elevator 55-30 Lower Fin 55-40 Rudder and Trim Tab 56-00 Windows 56-10 Repair of the Canopy Glass 56-11 Replacement of the Rear Window 57-00...
  • Page 6 Table of Contents DV 20 E AMM AIRCRAFT Intentionally left blank Page iv Doc # 4.02.25 CONTENTS 15 Mar 2022 Rev. 2...
  • Page 7 Record of Revision DV 20 E AMM AIRCRAFT Record of Revision 1. Record of Revision Use this check list to record and control all of the revisions which you put in this Airplane Maintenance Manual (AMM). Put the affected pages of the revision into the AMM as soon as you get them. Remove and destroy the pages which are superseded.
  • Page 8 Record of Revision DV 20 E AMM AIRCRAFT 2. Record of Incorporated Temporary Revisions The following Temporary Revisions are incorporated into the DV 20 E AMM by Revision 2: Temporary Revision Number Description of Temporary Revision AMM-TR-MÄM-20-446 Weighing Report Improvement AMM-TR-MÄM-20-450 Wiring Improvement AMM-TR-MÄM-20-459...
  • Page 9 List of Effective Pages DV 20 E AMM AIRCRAFT LIST OF EFFECTIVE PAGES 1. General The list of effective pages uses this abbreviation: = Table of Contents. = Record of Revisions LOEP = List of Effective Pages All Sections have a Title Page and a Table of Contents. The TOC can have one page or it can have many pages.
  • Page 10 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Section Date Section Date Section Date 04-00 15 Mar 2022 05-28-00 15 Mar 2022 05-28-91 15 Mar 2022 04-00 15 Mar 2022 05-28-00 15 Mar 2022 05-28-91...
  • Page 11 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Section Date Section Date Section Date 07-00 15 Mar 2022 11-30 15 Mar 2022 20-00 TOC 2 15 Mar 2022 07-00 15 Mar 2022 11-30 15 Mar 2022 20-00...
  • Page 12 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Section Date Section Date Section Date 23-00 Title 1 15 Mar 2022 24-00 Title 2 15 Mar 2022 24-60 15 Mar 2022 23-00 Title 2 15 Mar 2022 24-00...
  • Page 13 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Section Date Section Date Section Date 25-60-00 15 Mar 2022 27-10 15 Mar 2022 27-30 15 Mar 2022 25-60-00 15 Mar 2022 27-10 15 Mar 2022 27-30...
  • Page 14 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Section Date Section Date Section Date 27-50 15 Mar 2022 28-10 15 Mar 2022 31-10 15 Mar 2022 27-50 15 Mar 2022 28-20 15 Mar 2022 31-10...
  • Page 15 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Section Date Section Date Section Date 31-60 15 Mar 2022 32-10 15 Mar 2022 32-40 15 Mar 2022 31-60 15 Mar 2022 32-10 15 Mar 2022 32-40...
  • Page 16 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Page Date Section Date Section Date 33-20 15 Mar 2022 34-10 15 Mar 2022 51-00 15 Mar 2022 33-20 15 Mar 2022 34-10 15 Mar 2022 51-00...
  • Page 17 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Section Date Section Date Section Date 51-20 15 Mar 2022 52-10 15 Mar 2022 53-10 15 Mar 2022 51-20 15 Mar 2022 52-10 15 Mar 2022 55-00...
  • Page 18 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Chapter Page Revision Section Date Section Date Section Date 56-00 15 Mar 2022 57-10 15 Mar 2022 71-00 Title 1 15 Mar 2022 56-00 15 Mar 2022 57-10 15 Mar 2022 71-00...
  • Page 19 List of Effective Pages DV 20 E AMM AIRCRAFT Chapter Page Revision Chapter Page Revision Section Date Section Date 75-00 15 Mar 2022 78-00 15 Mar 2022 75-00 15 Mar 2022 78-00 15 Mar 2022 75-00 15 Mar 2022 78-00 15 Mar 2022 76-00 Title 1 15 Mar 2022...
  • Page 20 List of Effective Pages DV 20 E AMM AIRCRAFT Intentionally left blank Page 12 Doc # 4.02.25 LOEP 15 Mar 2022 Rev. 2...
  • Page 21 DV 20 E AMM Introduction AIRCRAFT CHAPTER 01 INTRODUCTION Doc # 4.02.25 Page 1 01-TITLE Rev. 2 15 Mar 2022...
  • Page 22 Introduction DV 20 E AMM AIRCRAFT Intentionally left blank Page 2 01-TITLE Doc # 4.02.25 15 Mar 2022 Rev. 2...

  • Page 23: Table Of Contents

    DV 20 E AMM Introduction AIRCRAFT TABLE OF CONTENTS CHAPTER 01 INTRODUCTION General ............1 Revision Service .
  • Page 24 Introduction DV 20 E AMM AIRCRAFT Intentionally left blank Page 2 Doc # 4.02.25 01-CONTENTS 15 Mar 2022 Rev. 2...

  • Page 25: Introduction

    DV 20 E AMM Introduction AIRCRAFT CHAPTER 01 INTRODUCTION 1. General This Airplane Maintenance Manual contains the data necessary to do the maintenance of the DV 20 E airplane. It contains a full description of the systems, trouble shooting procedures, component removal and installation procedures and maintenance instructions.

  • Page 26: Manual Configuration

    Introduction DV 20 E AMM AIRCRAFT 4. Manual Configuration This manual is written using the regulations of the Air Transport Association of America Specification iSpec2200. Each system is given a chapter number from the ATA iSpec2200. Where applicable, a chapter contains sections for each sub-system. The specification AECMA Simplified English has been used to write this Airplane Maintenance Manual.
  • Page 27 DV 20 E AMM Introduction AIRCRAFT A. The ATA iSpec2200 Numbering System The ATA iSpec2200 numbering system uses 3 pairs of numbers, for example: 57-50-xx Chapter / System Section / Subsystem Unit / Subject Number (Wings) (Flaps) (Not normally used) The first pair of numbers shows the system.
  • Page 28 Introduction DV 20 E AMM AIRCRAFT The main contents of each group of chapters is given below: (1) Group A - Introduction Chapter 01 tells you about the Airplane Maintenance Manual, and Chapter 2 tells you how to use the Airplane Maintenance Manual. (2) Group B - Airplane General Chapter 03 gives you a general description of the airplane and its systems.
  • Page 29 DV 20 E AMM Introduction AIRCRAFT (5) Group E - Propeller Chapter 61 contains the maintenance procedures for the propeller. Refer to the propeller manufacturer’s manual for other data. (6) Group F - Engine This group of chapters describes the engine and its systems. It contains the maintenance procedures for maintenance of the engine on the airplane.

  • Page 30: Page Numbering System

    Introduction DV 20 E AMM AIRCRAFT 5. Page Numbering System This manual uses the ATA iSpec2200 page block-numbering system. The page number is at the bottom of the page at the outer edge. It is adjacent to the chapter/section number. Each topic in a section has numbers from these page blocks: Description and Operation - Pages 1 to 99.
  • Page 31 Manual Organization DV 20 E AMM AIRCRAFT CHAPTER 02 ORGANIZATION AND HANDLING OF THE MANUAL Doc # 4.02.25 Page 1 02-TITLE Rev. 2 15 Mar 2022...
  • Page 32 Manual Organization DV 20 E AMM AIRCRAFT Intentionally left blank Page 2 Doc # 4.02.25 02-TITLE Rev. 2 15 Mar 2022...
  • Page 33 Manual Organization DV 20 E AMM AIRCRAFT TABLE OF CONTENTS CHAPTER 02 ORGANIZATION AND HANDLING OF THE MANUAL General ............1 Applicability .
  • Page 34 Manual Organization DV 20 E AMM AIRCRAFT Intentionally left blank Page 2 Doc # 4.02.25 02-CONTENTS Rev. 2 15 Mar 2022...

  • Page 35: Organization And Handling Of The Manual

    Manual Organization DV 20 E AMM AIRCRAFT CHAPTER 02 ORGANIZATION AND HANDLING OF THE MANUAL 1. General For data about a system, look in the list of chapters and find the chapter number. The first page of each chapter after the title page shows the contents. 2.

  • Page 36: Service Bulletins

    Manual Organization DV 20 E AMM AIRCRAFT 5. Service Bulletins Service Bulletins get issued when necessary. They give the operator more information on inspections, maintenance, repairs or modifications. Service Bulletins have 4 categories: A. Alert Service Bulletins Alert Service Bulletins are issued if there is an immediate danger (risk of damage or total loss). They are sent immediately by the fastest means to all known addresses of operators and service stations which are affected.

  • Page 37: Concession-Reports And Non-Conformance-Reports

    Manual Organization DV 20 E AMM AIRCRAFT 7. Concession-Reports and Non-Conformance-Reports Concession- and Non-Conformance-Reports are tools to approve and document deviations from the standard manufacturing processes during construction and assembly of an individual airplane (for example, handling of a mis-drilled hole in the fuselage). In case the operator or the maintenance organization needs to be informed as a consequence of the deviations for that particular airplane (for example, the use of a special sparepart is necessary or a different limit in a control surface balancing report applies), these Concession- and Non-Conformance-Reports are contained in the airplane log.
  • Page 38 Manual Organization DV 20 E AMM AIRCRAFT Localizer Engine Monitoring Unit Multi-Function Display Outside Air Temperature Primary Flight Display Part Number Service Bulletin Serial Number Time Between Overhaul TSMOH Time Since Major Overhaul Ultra High Frequency TTSN Total Time Since New TTSO Total Time Since Overhaul Volt...

  • Page 39: Conversion Factors And Abbreviations

    Manual Organization DV 20 E AMM AIRCRAFT 9. Conversion Factors and Abbreviations Dimension Conversion Factor Conversion Factor Unit [Abbreviation] SI to US/Imperial US/Imperial to SI Length [m] / 0.3048 = [ft] Meter [m] [mm] / 25.4 = [in] Millimeter [mm] [km] / 1.852 = [nm] Kilometer [km] [km] / 1.609 = [sm]...
  • Page 40 Manual Organization DV 20 E AMM AIRCRAFT Dimension Conversion Factor Conversion Factor Unit [Abbreviation] SI to US/Imperial US/Imperial to SI Force or Weight Newton [N] [N] / 4.448 = [lb] Decanewton [daN] [daN] / 0.4448 = [lb] Pound [lb] [lb] x 4.448 = [N] [lb] x 0.4448 = [daN] Mass ('Weight') Kilogram [kg]...

  • Page 41: Torque Conversion Graphs

    Manual Organization DV 20 E AMM AIRCRAFT 10.Torque Conversion Graphs Use Figure 1 for conversion of torque values Nm - lbf.ft. Use Figure 2 for conversion of Nm - lbf.in. 10 15 20 25 30 45 50 55 60 65 70 75 80 85 90 95 100 Newton.Metre (Nm) Figure 1: Nm - lbf.ft.
  • Page 42 Manual Organization DV 20 E AMM AIRCRAFT 0.5 1.0 1.5 2.0 2.5 3.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 Newton.Metre (Nm) Figure 2: Nm - lbf.in. Find the Nm value on the horizontal axis. Move vertically to the solid black diagonal line. Then move horizontally to the vertical axis.
  • Page 43 Airworthiness DV 20 E AMM Limitations CHAPTER 04 AIRWORTHINESS LIMITATIONS Doc # 4.02.25 Page 1 04-TITLE Rev. 2 15 Mar 2022...
  • Page 44 Airworthiness DV 20 E AMM Limitations AIRCRAFT Intentionally left blank Page 2 Doc # 4.02.25 04-TITLE Rev. 2 15 Mar 2022...
  • Page 45 Airworthiness DV 20 E AMM Limitations TABLE OF CONTENTS CHAPTER 04 AIRWORTHINESS LIMITATIONS Airworthiness Limitations ........3 Doc # 4.02.25 Page 1 04-CONTENTS...
  • Page 46 Airworthiness DV 20 E AMM Limitations AIRCRAFT Intentionally left blank Page 2 Doc # 4.02.25 04-CONTENTS Rev. 2 15 Mar 2022...
  • Page 47 Airworthiness DV 20 E AMM Limitations CHAPTER 04 AIRWORTHINESS LIMITATIONS THIS AIRWORTHINESS LIMITATIONS SECTION IS APPROVED BY EUROPEAN AVIATION SAFETY AGENCY (EASA) IN ACCORDANCE WITH THE APPLICABLE CERTIFICATION PROCEDURES AND THE TYPE CERTIFICATION BASIS. IT SPECIFIES THE AIRWORTHINESS LIMITATIONS REQUIRED BY CS-VLA. THIS AIRPLANE MAINTENANCE MANUAL CHAPTER 04 (AIRWORTHINESS LIMITATIONS) IS APPROVED WITH EASA APPROVAL NO.10056462.
  • Page 48 Airworthiness DV 20 E AMM Limitations AIRCRAFT Intentionally left blank Page 2 Doc # 4.02.25 04-00-00 15 Mar 2022 Rev. 2...
  • Page 49 Airworthiness DV 20 E AMM Limitations 1. Airworthiness Limitations This Chapter is approved and shows the mandatory limitations which were established as a result of the certification process. The time limits given in Chapter 04 must be applied to ensure Continued Airworthiness of the DV 20 E. Note: Regular inspections of the airplane including replacement and overhaul of certain components are required to ensure Continued Airworthiness of the DV 20 E.
  • Page 50 Airworthiness DV 20 E AMM Limitations AIRCRAFT Page 4 Doc # 4.02.25 04-00-00 15 Mar 2022 Rev. 2...
  • Page 51 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT CHAPTER 05 TIME LIMITS AND MAINTENANCE CHECKS Doc # 4.02.25 Page 1 05-TITLE Rev. 2 15 Mar 2022...
  • Page 52 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Intentionally left blank Page 2 Doc # 4.02.25 05-TITLE Rev. 2 15 Mar 2022...
  • Page 53 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT TABLE OF CONTENTS CHAPTER 05 TIME LIMITS AND MAINTENANCE CHECKS General ............1 Chapter Configuration .
  • Page 54 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Section 05-28 Maintenance Checklist DV 20 E Section 05-28-00 Maintenance Checklist DV 20 E Engine General ............1 Preparation .
  • Page 55 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-28-92 Check Flight Report Check Flight Report ..........1 Section 05-50 Unscheduled Maintenance Checks General .
  • Page 56 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Intentionally left blank Page 4 Doc # 4.02.25 05-CONTENTS 15 Mar 2022 Rev. 2...

  • Page 57: Time Limits And Maintenance Checks

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT CHAPTER 05 TIME LIMITS AND MAINTENANCE CHECKS 1. General This chapter will help you to do the maintenance of the DV 20 E airplane correctly. All of the usual tasks are easy to do and no special tools are necessary. Refer to Chapter 04-00 and Chapter 05-00 to help you when you do maintenance and inspections.
  • Page 58 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks C. Section 05-21 Section 05-21 contains information about the Flight Line Checks. D. Section 05-28 Section 05-28 contains the Maintenance Checklist for the DV 20 E airplane. The Section is subdivided into engine and airframe sections and the 6000 hr inspection and provides checklists for the engine, the propeller, the airframe and the corresponding reports.
  • Page 59 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT F. Referenced Maintenance Data Use latest revision of referenced maintenance data. Supplier Document Name Document No. Artex Installation and Maintenance Manual for the ME406 570-1600 BRP Powertrain Rotax Operator’s Manual 912 iS OM-912i / 898740 BRP Powertrain Rotax Maintenance Manual 912 iS...

  • Page 60: Definitions

    Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 3. Definitions In this Airplane Maintenance Manual, the following words have special meanings: Adjust. To put into a specified position or condition. For example, adjust the clearance to 1 mm. Check.
  • Page 61 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Record. (1) Technical name for something that shows what was done. For example, write the result of the test in the engine record. (2) The act of making a record. For example, record the result of the test in the Airplane Maintenance Log.
  • Page 62 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Intentionally left blank Page 6 Doc # 4.02.25 05-00-00 15 Mar 2022 Rev. 2...

  • Page 63: Time Limits

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-10 Time Limits 1. General All scheduled maintenance checks have time limits. You must do the scheduled maintenance within the time limits. Some components installed in the airplane have a fixed time between overhaul (TBO), (for example the engine).
  • Page 64 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Scheduled Maintenance Check Interval Flight Hours Calendar Time 100 Hour Check. 100 ± 10 200 Hour Check. 200 ± 10 12 months ± 30 days 1000 Hour Check. 1000 ± 50 6000 Hour Inspection.

  • Page 65: Component Time Limits

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT 4. Component Time Limits A. Maintenance Requirements Overhaul the following components at the times indicated: Kind Interval Component Maintenance Requirement hrs. yrs. Ope. 1 ± 30 Fuel cap, Newton. Overhaul. days Pitot static heat system 1 ±...

  • Page 66: Component Time Tracking

    Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 5. Component Time Tracking To make sure that component overhaul/replacement is done at the correct time you must record the data that follows in the Airplane Maintenance Log for each component requiring overhaul/replacement: Serial Number.

  • Page 67: Scheduled Maintenance Checks

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-20 Scheduled Maintenance Checks 1. General Do the scheduled maintenance checks in this Section at the intervals (flight hours and calendar time) stated in Section 05-10, Paragraph 3. Note: Only persons or maintenance organizations authorized by national Regulatory Authorities of the country where the airplane is registered may do these checks.
  • Page 68 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks The Maintenance Checklist is divided into the following Sections: A. Section 05-28-00: Engine Compartment All items forward of the firewalls. It includes the cowlings and the propeller. B. Section 05-28-50 - Airframe (1) Front Fuselage All items on the outside of the front fuselage from the firewall to the trailing edge of the wing.
  • Page 69 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT C. Section 05-28-70 - 6000 Hour Inspection All 6000 hour inspection items listed in the tables must be performed within 6000 hours of flight time and every 6000 hours thereafter. Doc # 4.02.25 Page 3 05-20-00...
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  • Page 71: Flight-Line Checks

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-21 Flight-Line Checks 1. General These checks include the pre-flight and post-flight checks. Do these checks each day the airplane is used. 2. Flight-Line Checks The Pre-Flight Check must be done before the first flight of the day. It shows the pilot the general condition of the airplane and the engine.
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  • Page 73: Hour Engine Check

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-22 25 Hour Engine Check 1. General The 25 hour engine check must only be done at 25 hours since new. Do all the tasks on the checklist. All items must be signed maintenance personnel. Record the completion of the 25 hour engine check in the engine log book and in the airplane log book.
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  • Page 75: Maintenance Checklist Dv 20 E Engine

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-28 Maintenance Checklist DV 20 E Section 05-28-00 Maintenance Checklist DV 20 E Engine 1. General Enter the applicable data in the blocks below: Registration _________________ Date _________________ Airplane S/N _________________ Engine S/N _________________...

  • Page 76: Preparation

    Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 2. Preparation Do the following items before you start the applicable check: Interval Inspection Items 200 1000 Initials Before you do the inspection: S Read the applicable Airworthiness Directives. S Read the applicable Service Bulletins. Examine the Log Books.

  • Page 77: Engine Ground Test

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT 3. Engine Ground Test Do an engine ground test as follows (complete a copy of the Engine Ground Test Record as part of the engine ground test. (Refer to Section 05-28-91)): Interval Inspection Items 1000...

  • Page 78: Maintenance Checklist Engine

    Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 4. Maintenance Checklist Engine A. Engine Interval Inspection Items, Engine 200 1000 Initials WARNING: MAKE SURE THE EXHAUST SYSTEM IS COOL BEFORE YOU DO MAINTENANCE ON THE ENGINE. THE EXHAUST SYSTEM CAN BE HOT.
  • Page 79 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Interval Inspection Items, Engine 200 1000 Initials Check the following systems and parts for breakage, looseness, leakage, chafing, kinks and cracks: S Coolant, drain, vent, fuel and oil hoses. S Oil and coolant radiator. S Air filter box and air filter.
  • Page 80 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Interval Inspection Items, Engine 200 1000 Initials Clean gascolator. S Check for fuel leakage. Clean the fuel separator. Do a check of the airplane battery. Look specially for: S Charge and capacity. S Corrosion, pitting, burn marks or damage on battery terminals.

  • Page 81: Maintenance Checklist Airframe

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-28-50 Maintenance Checklist Airframe 1. Front Fuselage Interval Inspection Items, Front Fuselage 100 200 1000 Initials Visually examine the complete surface of the front fuselage. Look especially for damage (dents, cracks, holes, scratches, and delamination).
  • Page 82 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Interval Inspection Items, Front Fuselage 100 200 1000 Initials Examine the brake lining. Look especially for wear. Minimum thickness 3.0 mm (0.12 in). Examine the brake disks. Look especially for wear. Minimum thickness 3.8 mm (0.15 in).
  • Page 83 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Interval Inspection Items, Front Fuselage 100 200 1000 Initials Inspect the fork for cracks, corrosion and deformation. S Carefully inspect the NLG fork for cracks. S Look especially for cracks in radius areas. Visually examine the NLG fork pivot.

  • Page 84: Cockpit

    Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 2. Cockpit Interval Inspection Items, Cockpit 100 200 1000 Initials Remove the seat shells. (Refer to Chapter 25-10). Examine the safety belts for general condition and security of the metal fitting in the surrounding composite. Make sure that the lock mechanism operates correctly.
  • Page 85 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Interval Inspection Items, Cockpit 100 200 1000 Initials Examine the locking-device for the wing main-bolt. Look especially for: S Correct operation. S Condition. Examine the mounting for the landing gear. Look especially for correct attachment and lock devices.
  • Page 86 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Interval Inspection Items, Cockpit 100 200 1000 Initials Visually examine the cockpit area for any signs of fuel leaks. Follow along the fuel hose conduit and fuel hoses from the drain trap block, along the floor of the cockpit to the fuel shut- off valve.

  • Page 87: Center Fuselage, Internal

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT 3. Center Fuselage, Internal Interval Inspection Items, Center Fuselage, Internal 100 200 1000 Initials Examine the rear windows (LH and RH): S Examine the acrylic glass windows for damage. Look specially for cracks.
  • Page 88 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Interval Inspection Items, Center Fuselage, Internal 100 200 1000 Initials Inspect the rudder control lever and cables on the B-bulkhead for damage, corrosion, incorrect attachment and lock devices. Inspect the rudder control cables in the center fuselage for wear, damage, corrosion and incorrect lock devices.
  • Page 89 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Interval Inspection Items, Center Fuselage, Internal 100 200 1000 Initials With the wings removed perform a visual inspection and a tap test of the spar bridge. S Examine the condition of the laminates and the bond to the fuselage.

  • Page 90: Rear Fuselage

    Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 4. Rear Fuselage Interval Inspection Items, Rear Fuselage 100 200 1000 Initials Examine the complete surface of the rear fuselage. Examine around the inside and outside of the window including surrounding structure and seal. Look especially for damage (dents, cracks, holes, scratches, and delamination).

  • Page 91: Tail

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT 5. Tail Interval Inspection Items, Tail 100 200 1000 Initials Examine the complete surface of the aft part of the fuselage, vertical stabilizer, and horizontal stabilizer. Look especially for damage (dents, cracks, holes, scratches and delamination). Look especially around the access panels.
  • Page 92 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Interval Inspection Items, Tail 100 200 1000 Initials Examine the trim actuator. Look especially for correct attachment and wear. Examine the fork assembly on the trim actuator. Look especially for cracks and corrosion. Remove the horizontal stabilizer.
  • Page 93 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Interval Inspection Items, Tail 100 200 1000 Initials Inspect the elevator vertical push rod for corrosion in the following areas: S Under the trim spring mounts by removing the roll pin. S Upper and lower trim spring mounts.

  • Page 94: Wings

    Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 6. Wings Interval Inspection Items, Wings 100 200 1000 Initials Examine the complete surface of the wings. Look especially for damage (dents, cracks, holes, and delamination). Examine the paint coat. Remove the wings (Refer to Chapter 57-10).
  • Page 95 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Interval Inspection Items, Wings 100 200 1000 Initials Visually examine the mass balance attachment through the access hole on the lower surface. Inspect for cracks in the laminate and bonding paste around the fasteners. Examine the flaps.
  • Page 96 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Interval Inspection Items, Wings 100 200 1000 Initials Examine the Pitot head. Look especially for correct attachment. Inspect the vent and drain holes in the wings, fuselage and control surfaces for blockage. Do a test for axial play in the B-bolts.

  • Page 97: General

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT 7. General Interval Inspection Items, General 100 200 1000 Initials Examine the Pitot-static system. Look especially for leaks. Do a low-range static leak test. (Refer to Chapter 34-10). Do a Pitot test. (Refer to Chapter 34-10). Make sure that the Pitot-static system is clean.
  • Page 98 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Interval Inspection Items, General 100 200 1000 Initials Examine the airplane. Look especially for loose items and tools. Close all access panels. Install the following items: S Engine cowlings. S The instrument panel cover. S The seat shells.

  • Page 99: 6000 Hour Inspection

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-28-70 6000 Hour Inspection 1. General Note: All 1000 hour inspection items must be performed in addition to the 6000 hour inspection items below. A. Engine Ground Test Perform all inspection items described in 1000 hour interval. B.
  • Page 100 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Inspection Items, Front Fuselage Initials Do a visual inspection of the NLG bushings in the T-panel on the bottom of the fuselage. S Check for the security of the bushing in the T-panel. S Perform a tap test to check for the condition of the surrounding laminate.
  • Page 101 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT (4) Fuselage Inspection Items, Fuselage Initials Visually examine the B-bulkhead. Look for cracks and delamination, especially around the fuel tank attachments. Visually examine the rudder yoke assembly, its attachment, and surrounding structure under the B-bulkhead.
  • Page 102 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Inspection Items, Fuselage Initials Perform a visual inspection and tap test of the elevator. S Examine the skin for delamination, cracks, dents and scratches. S Examine the paint for chips, scratches and UV damage. S Examine for damage to the foam core.
  • Page 103 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Inspection Items, Wings Initials Perform a visual inspection and tap test of the trailing edge spar. S Examine for the condition of the laminate and bond of the trailing edge to the skin.
  • Page 104 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Inspection Items, Wings Initials Visually examine the main pin bushing in the spar bridge. Replace the main pin bushing if it is damaged. Page 6 Doc # 4.02.25 05-28-70 15 Mar 2022 Rev.

  • Page 105: Maintenance Report

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-28-90 Maintenance Report 1. Maintenance Report Complete a copy of the Maintenance Report after all of the applicable maintenance tasks in the Maintenance Checklist have been initialed. DV 20 E Airplane Serial Number: Registration Number: Check: __________...
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  • Page 107: Engine Ground Test Record

    Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-28-91 Engine Ground Test Record 1. Engine Ground Test Record Do the engine test in accordance with Section 71-00 and record results and comments. WARNING: DO NOT STAND WITHIN THE DANGER AREA OF THE PROPELLER. THE PROPELLER CAN CAUSE DEATH OR INJURY TO PERSONS.
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  • Page 109 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-28-92 Check Flight Report 1. Check Flight Report Note: The maintenance check flight must be done in accordance with the applicable national regulations. MAINTENANCE CHECK FLIGHT DV 20 E (See Maintenance Checklist for Applicability) AIRCRAFT Page 1 of 2...
  • Page 110 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks MAINTENANCE CHECK FLIGHT DV 20 E (See Maintenance Checklist for Applicability) AIRCRAFT Page 2 of 2 Registration: Pilot: Airdrome: Date: Take-Off: Landing: Findings Functional Check, Flight Behavior Backup altimeter Backup artificial horizon Compass Behavior during climb Coolant temperature...
  • Page 111 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Section 05-50 Unscheduled Maintenance Checks 1. General Unscheduled maintenance checks are necessary after any incident that could cause damage to the airplane. 2. Hard Landing Check Figure 1 shows the hard landing check areas. You must do a hard landing check when the pilot makes a report of a hard landing.
  • Page 112 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Detail Steps/Work Items Key Items Examine the landing gear struts. Look specially Refer to Section 32-10. for: S Bending. S Cracks. Measure the maximum deflection of the main landing gear struts as follows: Refer to Chapter 07-10.
  • Page 113 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Detail Steps/Work Items Key Items (11) Remove the load from the nose-gear and examine it. Look specially for more than the usual play. CAUTION: IF YOU THINK THE AIRPLANE HAS DAMAGE TO AN AREA THAT TRANSMITS LOAD, MUST...
  • Page 114 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks Spar Bridge Inner Mount Outer Mount Main Gear Strut Axle Attachment Attachment to Journal Assembly Engine Mount Shock Absorber Assembly Brake Disk Bearings in Fuselage Wheel and Tire Nose Leg Pivot Assembly Figure 1: Hard Landing Check Areas Page 4...
  • Page 115 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT 3. Propeller Strike A propeller strike can be a moving propeller (engine running) which has hit a solid object. Or it can be a moving object that hits a propeller that is not moving. A.
  • Page 116 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 4. Engine Fire WARNING: BEFORE YOU DO WORK ON THE AIRPLANE MAKE SURE THE FIRE HAS BEEN EXTINGUISHED. LET THE ENGINE COOL AND DISCONNECT THE BATTERY. WARNING: FIRE CAN SERIOUSLY WEAKEN CFRP. IF YOU FIND ANY DAMAGE TO CFRP, DO NOT OPERATE THE AIRPLANE.
  • Page 117 Time Limits and DV 20 E AMM Maintenance Checks AIRCRAFT Detail Steps/Work Items Key Items WARNING: DO NOT GET FIRE EXTINGUISHER PARTICLES ON YOU. THE CHEMICALS USED EXTINGUISH FIRE CAUSTIC/POISONOUS. WHEN YOU CLEAN THE ENGINE REFER TO FIRE EXTINGUISHER MANUFACTURER'S SAFETY INSTRUCTIONS.
  • Page 118 Time Limits and DV 20 E AMM AIRCRAFT Maintenance Checks 5. Overspeed Flap Extension Detail Steps/Work Items Key Items Inspect flaps, flap attachment brackets, hinges, horns and flap control rods for any signs of damage. Remove the flap bellcrank (inside fuselage). Refer to Section 27-50.
  • Page 119 DV 20 E AMM Dimensions and Areas AIRCRAFT CHAPTER 06 DIMENSIONS AND AREAS Doc # 4.02.25 Page 1 06-TITLE Rev. 2 15 Mar 2022...
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  • Page 121 DV 20 E AMM Dimensions and Areas AIRCRAFT TABLE OF CONTENTS CHAPTER 06 DIMENSIONS AND AREAS General ............1 Dimensions .
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  • Page 123: Dimensions And Areas

    DV 20 E AMM Dimensions and Areas AIRCRAFT CHAPTER 06 DIMENSIONS AND AREAS 1. General The DV 20 E uses the System Internationale (SI) for dimensions and areas. Imperial dimensions are also given in brackets. For example: Wing span 10.87 m (35 ft 8 in). Conversions between SI units and imperial units are given in Chapter 02.
  • Page 124 Dimensions and Areas DV 20 E AMM AIRCRAFT Figure 1: DV 20 E Overall Dimensions (Approximate Values) Page 2 Doc # 4.02.25 06-00-00 15 Mar 2022 Rev. 2...

  • Page 125: Dimensions

    DV 20 E AMM Dimensions and Areas AIRCRAFT 2. Dimensions DV 20 E Dimensions Overall Dimensions Wing span 10.87 m (35 ft 8 in) Length 7.15 m (23 ft 5 in) Height (nominal) 2.10 m (6 ft 11 in) Wing Airfoil Wortmann FX63-137/20-HOAC Wing area...

  • Page 126: Adjustment Reports

    Dimensions and Areas DV 20 E AMM AIRCRAFT 3. Adjustment Reports The measurements of the DV 20 E are recorded on an Adjustment Report and the Main Landing Gear Toe-In and Camber Report at the factory when the airplane is built. See Figures 2 thru 10. These reports become part of the airplane records.
  • Page 127 DV 20 E AMM Dimensions and Areas AIRCRAFT Figure 2: Control Surface Deflections Doc # 4.02.25 Page 5 06-00-00 Rev. 2 15 Mar 2022...
  • Page 128 Dimensions and Areas DV 20 E AMM AIRCRAFT (1) Control Surface Adjustment Reports Figure 3: Control Surface Weigh & Balance Report Page 6 Doc # 4.02.25 06-00-00 15 Mar 2022 Rev. 2...
  • Page 129 DV 20 E AMM Dimensions and Areas AIRCRAFT Figure 4: Control Surface Adjustment Report Doc # 4.02.25 Page 7 06-00-00 Rev. 2 15 Mar 2022...
  • Page 130 Dimensions and Areas DV 20 E AMM AIRCRAFT ITEM LIMITS ACTUAL LEFT 290 - 330 mm DIHEDRAL (3.77° - 4.29°) RIGHT LEFT LEADING EDGE 20 - 55 mm SWEEP BACK (0.26° - 0.72°) RIGHT LEFT max. diff. SYMMETRY CHECK RIGHT 50 mm RUDDER CABLE TENSION 13.25 - 7.33 kg...
  • Page 131 Lifting and Shoring DV 20 AMM General AIRCRAFT CHAPTER 07 LIFTING AND SHORING - GENERAL Doc # 4.02.25 Page 1 07-TITLE Rev. 2 15 Mar 2022...
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  • Page 133 Lifting and Shoring DV 20 AMM General AIRCRAFT TABLE OF CONTENTS CHAPTER 07 LIFTING AND SHORING - GENERAL General ............1 Lifting the Airplane on Jacks .
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  • Page 135 Lifting and Shoring DV 20 AMM General AIRCRAFT CHAPTER 07 LIFTING AND SHORING - GENERAL 1. General The DV 20 E has no lifting points. You must use straps to lift the airplane. Two persons can lift the wings, or the horizontal stabilizer, or any of the airplane control surfaces. 2.
  • Page 136 Lifting and Shoring DV 20 AMM General AIRCRAFT Figure 1: Lifting the Airplane on Jacks Page 2 Doc # 4.02.25 07-00-00 15 Mar 2022 Rev. 2...
  • Page 137 Lifting and Shoring DV 20 AMM General AIRCRAFT B. Lifting the Airplane Detail Steps/Work Items Key Items/References CAUTION: IF THE AIRPLANE IS IN THE OPEN THEN ALIGN IT INTO THE WIND. MAXIMUM WIND SPEED: 10 KM/H (6 KTS). Apply the parking brake. Put chocks under the main wheels.
  • Page 138 Lifting and Shoring DV 20 AMM General AIRCRAFT C. Lowering the Airplane Detail Steps/Work Items Key Items/References WARNING: MAKE SURE THAT THE AREA UNDER THE AIRPLANE IS CLEAR BEFORE YOU LOWER THE AIRPLANE WITH THE JACKS. Release the hold-down strap. Remove the trestle from under the rear fuselage.
  • Page 139 Weighing and Levelling DV 20 E AMM AIRCRAFT CHAPTER 08 WEIGHING AND LEVELLING Doc # 4.02.25 Page 1 08-TITLE Rev. 2 15 Mar 2022...
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  • Page 141 Weighing and Levelling DV 20 E AMM AIRCRAFT TABLE OF CONTENTS CHAPTER 08 WEIGHING AND LEVELLING General ............1 Section 08-10 Weighing General .
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  • Page 143 Weighing and Levelling DV 20 E AMM AIRCRAFT CHAPTER 08 WEIGHING AND LEVELLING 1. General This Chapter tells you how to weigh the airplane. It also tells you how to level the airplane. Use the procedures in Section 08-10 to weigh the airplane and to calculate the airplane moment. Use the procedures in Section 08-20 to level the airplane.
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  • Page 145 Weighing and Levelling DV 20 E AMM AIRCRAFT Section 08-10 Weighing 1. General Only operate the airplane within the permitted range of weight and center of gravity limits. This will give good flight performance and good handling qualities. It is also necessary for safety. If you make any changes to the airplane that will alter the weight (or the center of gravity), then you must calculate the new weight of the airplane.
  • Page 146 Weighing and Levelling DV 20 E AMM AIRCRAFT Figure 1: Level the Airplane Laterally Page 2 Doc # 4.02.25 08-10-00 15 Mar 2022 Rev. 2...
  • Page 147 Weighing and Levelling DV 20 E AMM AIRCRAFT Arm - Empty Weight (X Spirit Level 56mm Datum 1000mm Wedge 1000 : 56 C of G Legend: = Arm, Reference Plane to center line of main wheels. = Arm, Reference Plane to center line of nose wheel. = Net weight, main wheel scales LH and RH.
  • Page 148 Weighing and Levelling DV 20 E AMM AIRCRAFT 2. Weighing If you use mechanical scales to weigh the airplane, you must also use wooden blocks under the wheels to level the airplane. You must obey the manufacturers' instructions on the scales. A.
  • Page 149 Weighing and Levelling DV 20 E AMM AIRCRAFT B. Weighing Procedure Detail Steps/Work Items Key Items/References Note: Weigh the airplane in a closed room. This will avoid any wind causing weighing errors. Make a copy of the Weighing Report form. Figure 3.
  • Page 150 Weighing and Levelling DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Make the airplane level longitudinally: Refer to Figure 2. S Place a wedge on the rear fuselage with the Put thin blocks between the nose thin end forward. wheel and the scale to bring the spirit level horizontal.
  • Page 151 Weighing and Levelling DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (17) Remove the scales and the ramps. (18) Measure the distance X . Record the value in the Weighing Report. (19) Measure the distance X . Record the value in the Weighing Report.
  • Page 152 Weighing and Levelling DV 20 E AMM AIRCRAFT WEIGHING REPORT Model: DV 20 E Serial Number:___________ Registration:_____________ Data with reference to the Type Certificate Data Sheet and the Airplane Flight Manual. Reference Plane: Vertical plane at the leading edge of wing at the root rib. Horizontal reference line: Wedge 1000:56, 2000 mm aft of the canopy rim.
  • Page 153 Weighing and Levelling DV 20 E AMM AIRCRAFT Section 08-20 Levelling 1. General These procedures tell you how to make the airplane level. See Section 07-10 for lifting the airplane with jacks. Make the airplane level with jacks unless you are weighing the airplane. If you weigh the airplane, change the airplane tire pressures or use blocks to make the airplane level (see Section 08-10).
  • Page 154 Weighing and Levelling DV 20 E AMM AIRCRAFT Figure 1: Level the Airplane Laterally Figure 2: Level the Airplane Longitudinally Page 2 Doc # 4.02.25 08-20-00 Rev. 2 15 Mar 2022...
  • Page 155 Weighing and Levelling DV 20 E AMM AIRCRAFT B. Level the Airplane with Jacks Procedure Detail Steps/Work Items Key Items/References Note: Level the airplane in a closed room. This will avoid any wind causing levelling errors. Lift the airplane on jacks. Refer to Section 07-10.
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  • Page 157 DV 20 E AMM Placards and Markings AIRCRAFT CHAPTER 11 PLACARDS AND MARKINGS Doc # 4.02.25 Page 1 11-TITLE Rev. 2 15 Mar 2022...
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  • Page 159 DV 20 E AMM Placards and Markings AIRCRAFT TABLE OF CONTENTS CHAPTER 11 PLACARDS AND MARKINGS General ............1 Replace Plastic Foil Placards .
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  • Page 161 DV 20 E AMM Placards and Markings AIRCRAFT CHAPTER 11 PLACARDS AND MARKINGS 1. General Placards are used for identification and indication. They show the function, operation and operating limitations of systems and equipment. This chapter shows you the location of the exterior placards and markings and the location of the interior placards.
  • Page 162 Placards and Markings DV 20 E AMM AIRCRAFT B. Replace a Placard Use this procedure for both internal and external foil placards. Detail Steps/Work Items Key Items/References Remove the old placard: Do not over-heat the composite structure. S Warm the placard with a hot air blower. S Lift one corner of the placard.
  • Page 163 DV 20 E AMM Placards and Markings AIRCRAFT Section 11-20 Exterior Placards and Markings 1. General Figure 1 and 2 show the exterior placards and markings for the DV 20 E airplane. STEP BELOW REFUELING GROUND Oil 3.0 l CAUTION! DO NOT USE AVIATION GRADE ENGINE OIL! SAE 15W-40...
  • Page 164 Placards and Markings DV 20 E AMM AIRCRAFT Super (EN 228) AVGAS 100 LL or see AFM 93 l / 24.5 US gal. usable 84 l / 22.2 US gal. (RH Side) EMERGENCY TIE DOWN LOCATOR TRANSMITTER INSTALLED HERE HERE ICIC FUEL DRAINS EMPLACEMENT...
  • Page 165 DV 20 E AMM Placards and Markings AIRCRAFT Section 11-30 Interior Placards and Markings 1. General Figures 1, 2 and 3 show the interior placards and markings. Maneuvering speed: V A = 111 kts This airplane is classified as a very light airplane approved for day and NOSE UP night VFR, in non-icing conditions.
  • Page 166 Placards and Markings DV 20 E AMM AIRCRAFT Figure 2: Interior Placards and Markings (if OÄM 20-245/b) is installed Page 2 Doc # 4.02.25 11-30-00 15 Mar 2022 Rev. 2...
  • Page 167 DV 20 E AMM Placards and Markings AIRCRAFT RESCUE HAMMER ONLY WITH BAGGAGE NET (Leather Seats) TO LIFT CANOPY OPEN BOTH SIDES OPEN CLOSE (Sheepskin Seats) TO LIFT CANOPY OPEN BOTH SIDES OPEN CLOSE FUEL PULL OFF FULL HIGH FORWARD IDLE LOW THROTTLE TENSION Figure 3: Interior Placards and Markings (Sheet 2 of 2)
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  • Page 169 DV 20 E AMM Servicing - General AIRCRAFT CHAPTER 12 SERVICING - GENERAL Doc # 4.02.25 Page 1 12-TITLE Rev. 2 15 Mar 2022...
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  • Page 171 DV 20 E AMM Servicing - General AIRCRAFT TABLE OF CONTENTS CHAPTER 12 SERVICING General ............1 Section 12-10 Replenishment General .
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  • Page 173: Servicing

    DV 20 E AMM Servicing - General AIRCRAFT CHAPTER 12 SERVICING 1. General This Chapter gives the servicing tasks which apply to the whole airplane: Section 12-10. Replenishment procedures for various systems. Section 12-20. Lubrication data. Section 12-30. Cleaning and snow and ice removal. The procedures for preventive and corrective maintenance of systems are given in the related Chapter of this manual.
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  • Page 175: Replenishment

    DV 20 E AMM Servicing - General AIRCRAFT Section 12-10 Replenishment 1. General Use the procedures in this Section to replenish the fluid systems of the airplane. Figure 1 shows the location of the servicing points. 2. Fuel System A tank in the fuselage holds the fuel for the DV 20 E airplane. The tank can hold 93 liters (24.5 US gal) of fuel.
  • Page 176 Servicing - General DV 20 E AMM AIRCRAFT Fuel Engine Oil Fuel Drain Coolant Brake Fluid Tire Air (on Co-Pilot’s Tire Air Brake Pedals) Figure 1: Replenishing Points Page 2 12-10-00 Doc # 4.02.25 15 Mar 2022 Rev. 2...

  • Page 177: Refueling/Defueling

    DV 20 E AMM Servicing - General AIRCRAFT 3. Refueling/Defueling A. Refueling Detail Steps/Work Items Key Items/References Shut down the engine. ENGINE MASTER OFF. All occupants leave the airplane. Ground the airplane electrically. At the refueling connection. Ground the refueling vehicle electrically. Remove the fuel filler cap.

  • Page 178: Fuel Contamination Test

    Servicing - General DV 20 E AMM AIRCRAFT 4. Fuel Contamination Test A. Equipment Item Quantity Part Number Glass container. Commercial. B. Fuel Contamination Test Procedure Detail Steps/Work Items Key Items/References Put the glass container under the fuel tank drain valve.

  • Page 179: Brake System

    DV 20 E AMM Servicing - General AIRCRAFT 6. Brake System The brake fluid reservoirs are located on the brake master cylinders on the co-pilot's side. You get access in the cockpit below the instrument panel. WARNING: DO NOT GET BRAKE FLUID ON YOUR SKIN OR IN YOUR MOUTH. BRAKE FLUID IS TOXIC AND CAN CAUSE INTERNAL INJURY.

  • Page 180: Tires

    Servicing - General DV 20 E AMM AIRCRAFT 7. Tires The DV 20 E uses these tires: Main tire: 5.00 x 5 - pressure 2.3 bar (33 PSI). Nose tire: 5.00 x 4 - pressure 1.8 bar (26 PSI). A. Examine the Tires and Measure the Pressure Detail Steps / Work Items Key Items / References Examine the tires.

  • Page 181: Cooling System

    DV 20 E AMM Servicing - General AIRCRAFT 8. Cooling System A. Adding Coolant Detail Steps / Work Items Key Items / References Prior to adding coolant, the reason for the loss of the liquid must be investigated and corrected (e.g.
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  • Page 183: Scheduled Servicing

    DV 20 E AMM Servicing - General AIRCRAFT Section 12-20 Scheduled Servicing 1. General This Section gives lubrication data. It tells you where components are located. It gives a list of approved lubricants. It also gives components which MUST NOT be lubricated. Most systems and components have maintenance-free bearings.

  • Page 184: Lubrication Schedule

    Servicing - General DV 20 E AMM AIRCRAFT 2. Lubrication Schedule Table 2 shows the lubrication schedule. Clean each lubrication point before lubrication. See Figures 1 and 2 for the location of the lubrication points listed on the left side of the table. The center column shows the type of lubricant.
  • Page 185 DV 20 E AMM Servicing - General AIRCRAFT Table 2 - Lubrication Schedule Location Type of Lubricant Interval See Figure 1 and 2 (Hours) see Notes (1), (2) (16) Flap, Aileron, Elevator hinge bearings (Oil Lite) (see Note 5) (17A) Flap horn bearing (17) B-bolt spherical bearing...
  • Page 186 Servicing - General DV 20 E AMM AIRCRAFT Table 3 - Lubricant Specifications Specification Product Manufacturer TYPE 1 MIL-G-81322 AeroShell Grease 22 Shell Oil Company DOD-G-24508 A Mobil Aviation Grease Exxon Mobil Oil Corp. Preferred for MLG wheel SHC 100 bearings.
  • Page 187 DV 20 E AMM Servicing - General AIRCRAFT Figure 1: Lubrication Points Sheet 1 Doc # 4.02.25 Page 5 12-20-00 Rev. 2 15 Mar 2022...
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  • Page 189: Unscheduled Servicing

    DV 20 E AMM Servicing - General AIRCRAFT Section 12-30 Unscheduled Servicing 1. General This Section describes how to clean the airplane. It also describes how to remove snow and ice from the airplane. 2. Exterior Cleaning The outer surfaces of the DV 20 E must be kept clean to maintain the good performance characteristics of the airplane.

  • Page 190: Engine Cleaning

    Servicing - General DV 20 E AMM AIRCRAFT 5. Engine Cleaning Use a cold cleaning agent (e.g. Berner Cold Cleaner No.13618.0). CAUTION: DO NOT CLEAN THE ENGINE WHILE THE ENGINE IS HOT. CAUTION: DO NOT USE HIGHLY FLAMMABLE OR CORROSIVE CLEANING AGENTS TO CLEAN THE ENGINE.
  • Page 191 DV 20 E AMM Standard Practices AIRCRAFT CHAPTER 20 STANDARD PRACTICES Doc # 4.02.25 Page 1 20-TITLE Rev. 2 15 Mar 2022...
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  • Page 193 DV 20 E AMM Standard Practices AIRCRAFT TABLE OF CONTENTS CHAPTER 20 STANDARD PRACTICES General ............1 Section 20-10 Standard Practices - Airframe General .
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  • Page 195: General

    DV 20 E AMM Standard Practices AIRCRAFT CHAPTER 20 STANDARD PRACTICES 1. General This Chapter gives you the standard practices for the DV 20 E airplane. Use industry standard practice where no specific practice is given. This Chapter has the following Section: Section 20-10.
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  • Page 197: Standard Practices - Airframe

    DV 20 E AMM Standard Practices AIRCRAFT Section 20-10 Standard Practices - Airframe 1. General This Section gives you data about the fasteners (bolts/screws/nuts) used in the DV 20 E airplane and their related torque values. This Section tells you the procedures used to tighten the fasteners. Note: Use the standard torque values listed on the subsequent pages of this section where no specific values are given.

  • Page 198: Bolt And Nut Types Used In The Airplane

    Standard Practices DV 20 E AMM AIRCRAFT 2. Bolt and Nut Types Used in the Airplane The DV 20 E airplane uses these bolts: - DIN bolts. - LN bolts. - AN bolts. The minimum strength for the bolts is DIN specification 8.8. Letters and numbers on the head of the bolt identify the bolt type.

  • Page 199: Standard Torque Values

    DV 20 E AMM Standard Practices AIRCRAFT 3. Standard Torque Values A. AN Fine Threads Bolt Size Torque (Nm) Torque (lbf.ft.) 10 - 32 1/4 - 28 5/16 - 24 13.6 3/8 - 24 20.7 15.3 7/16 - 20 37.7 27.8 1/2 - 20 54.2...

  • Page 200: Special Torque Values

    Standard Practices DV 20 E AMM AIRCRAFT C. DIN and LN Specifications Metric Thread Torque (Nm) Torque (lbf.ft.) 11.8 23.6 44.3 4. Special Torque Values Part Torque (Nm) Torque (lbf.ft.) Propeller to engine nuts. Refer to Propeller Maintenance Manual. Bolts attaching the engine mount to the firewall. 29.5 Fuel drain valve.
  • Page 201 DV 20 E AMM Heating and Ventilation AIRCRAFT CHAPTER 21 HEATING AND VENTILATION Doc # 4.02.25 Page 1 21-TITLE Rev. 2 15 Mar 2022...
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  • Page 203 DV 20 E AMM Heating and Ventilation AIRCRAFT TABLE OF CONTENTS CHAPTER 21 HEATING AND VENTILATION General ............1 Description and Operation .
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  • Page 205: Heating And Ventilation

    DV 20 E AMM Heating and Ventilation AIRCRAFT CHAPTER 21 HEATING AND VENTILATION 1. General The DV 20 E airplane has separate systems to supply hot air and cold air. The hot air system can supply air from ambient temperature to warm. The system supplies the footwells or the windscreen. The cold air system can supply ambient air to adjustable vents at each side of the instrument panel.
  • Page 206 Heating and Ventilation DV 20 E AMM AIRCRAFT A CABIN HEAT control lever at the front of the center console. A bowden cable connects the lever to the flap of the heat control valve. A DEFROST/FLOOR control lever at the front of the center console. A bowden cable connects the lever to the distribution control valve.
  • Page 207 DV 20 E AMM Heating and Ventilation AIRCRAFT Canopy Defrost Hot Air Instrument Panel Cover HEAT Exhaust Cockpit Lever Muffler Exhaust Gases Shroud Firewall DEFROST HEAT Cockpit Lever FLOOR Intake Coolant Floor Hot Air Radiator FLOOR HEAT/DEFROST Selector DEFROST/FLOOR Control Flap Heat Control Flap Hot Air Out to Atmosphere Figure 1: Heating and Ventilation Schematic Diagram...
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  • Page 209: Trouble-Shooting

    DV 20 E AMM Heating and Ventilation AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the air conditioning system. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair Burning smell in the cockpit.
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  • Page 211: Maintenance Practices

    DV 20 E AMM Heating and Ventilation AIRCRAFT Maintenance Practices 1. General This chapter describes about the Maintenance Practices for the distribution and heating systems. It also describes how to remove/install and adjust components. 2. Remove/Install the Heat Control Valve A.
  • Page 212 Heating and Ventilation DV 20 E AMM AIRCRAFT B. Install the Heat Control Valve Detail Steps/Work Items Key Items/References Put the heat control valve in position on the Use Product PR 812, (MIL-S-38249 firewall. Type 1) Fire Wall Sealant. Install the washers and bolts that attach the valve to the firewall.

  • Page 213: Test/Adjust The Heat Control Valve

    DV 20 E AMM Heating and Ventilation AIRCRAFT 3. Test/Adjust the Heat Control Valve Detail Steps/Work Items Key Items/References Remove the engine cowlings. Refer to Chapter 71-10. Set the CABIN HEAT control lever in the cockpit There must be 'bounce' of about 3 mm to OFF.

  • Page 214: Remove/Install The Distribution Box

    Heating and Ventilation DV 20 E AMM AIRCRAFT 4. Remove/Install the Distribution Box A. Remove the Distribution Box Detail Steps/Work Items Key Items/References WARNING: DO NOT STAND WITHIN THE DANGER AREA OF THE PROPELLER. IF THE ENGINE STARTS, THE PROPELLER CAN CAUSE DEATH OR INJURY TO PERSONS.
  • Page 215 DV 20 E AMM Heating and Ventilation AIRCRAFT Detail Steps/Work Items Key Items/References Remove the engine controls face plate from the center console cover: S Remove the four screws. Remove the center console cover from the center console: S Remove the six screws from the two sides of the center console cover.
  • Page 216 Heating and Ventilation DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (12) Remove the support block from the distribution box: S Remove the nut from the heat valve bowden cable at the support block. S Turn the bowden cable outer sheath and remove from the support block.
  • Page 217 DV 20 E AMM Heating and Ventilation AIRCRAFT Detail Steps/Work Items Key Items/References Turn the HEAT ON-OFF bowden control cable and install to the support block: S Install the bowden cable lock nut. Install the support block to the top of the distribution box.
  • Page 218 Heating and Ventilation DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (14) Install the center console cover to the center console. (15) Install the face plate to the center console cover. (16) Install the control knobs from the following levers at the center console: S PARKING BRAKE.

  • Page 219: Test/Adjust The Distribution Box

    DV 20 E AMM Heating and Ventilation AIRCRAFT 5. Test/Adjust the Distribution Box Detail Steps/Work Items Key Items/References Set the CABIN HEAT control lever in the cockpit There must be 'bounce' of about 3 mm to DEFROST. (0.1 in) between the back of the lever and the cockpit stop.
  • Page 220 Heating and Ventilation DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Set the CABIN HEAT control lever in the cockpit There must be 'bounce' of about 3 mm to FLOOR. (0.1 in) between the top of the lever and the cockpit stop.

  • Page 221: Remove/Install The Heat Exchanger Shroud

    DV 20 E AMM Heating and Ventilation AIRCRAFT 6. Remove/Install the Heat Exchanger Shroud A. Remove the Heat Exchanger Shroud Detail Steps/Work Items Key Items/References Remove the engine cowlings. Refer to Chapter 71-10. WARNING: IF THE ENGINE HAS BEEN RUNNING, TAKE CARE WHEN YOU TOUCH THE HEAT CONTROL VALVE.

  • Page 222: Inspect The Heat Exchanger

    Heating and Ventilation DV 20 E AMM AIRCRAFT 7. Inspect the Heat Exchanger WARNING: NO CRACKS ARE PERMITTED IN THE EXHAUST MUFFLER. CRACKS ALLOW CARBON MONOXIDE TO ENTER THE HEATING SYSTEM. CARBON MONOXIDE IS POISONOUS. Detail Steps/Work Items Key Items/References Remove the heat-exchanger shroud.
  • Page 223 DV 20 E AMM Communications AIRCRAFT CHAPTER 23 COMMUNICATIONS Doc # 4.02.25 Page 1 23-TITLE Rev. 2 15 Mar 2022...
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  • Page 225 DV 20 E AMM Communications AIRCRAFT TABLE OF CONTENTS CHAPTER 23 COMMUNICATIONS General ............1 Description .
  • Page 226 Communications DV 20 E AMM AIRCRAFT Section 23-60 Static Discharging General ............1 Description .

  • Page 227: General

    DV 20 E AMM Communications AIRCRAFT CHAPTER 23 COMMUNICATIONS 1. General This Chapter describes about the following communications and communications related systems: Chapter 23-10. Speech Communication. Chapter 23-50. Audio Integrating. Chapter 23-60. Static Discharging (including bonding). This chapter gives you only the on-airplane data about the systems and components. Refer to the manufacturer's handbooks for shop data.
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  • Page 229: General

    DV 20 E AMM Communications AIRCRAFT Section 23-10 Speech Communication 1. General The DV 20 E airplane has dual VHF communications. The basic dual system has GTN 650 COM/NAV/GPS utilizing a GTR 225A as the COM 2. The audio panel with speaker amplifier operates the cabin speaker. Figure 1 shows the antenna locations.

  • Page 230: Description

    Communications DV 20 E AMM AIRCRAFT 2. Description A. GTN 650 The GTN 650 is a VHF communications transceiver and a GPS receiver. (Refer to Chapter 34-50 for GPS functions). It also includes VOR/Localizer and glideslope receivers. It uses a Secure Digital (SD) card to load and store various types of data.
  • Page 231 DV 20 E AMM Communications AIRCRAFT The GTN 650 has the following controls: (a) Left-Hand Knob Volume / Squelch Knob - controls audio volume for the selected COM radio or Nav receiver and other volume levels for external audio input devices that are controlled via the GTN interface, if installed.
  • Page 232 Communications DV 20 E AMM AIRCRAFT B. Garmin GTR 225A COMM The GTR 225A Comm Radio provides a VHF Communications transceiver in a small footprint. The unit has the ability to monitor the standby COM frequencies and stores the most-used frequencies. The GTR 225A operates in the aviation voice band, from 118.000 to 136.975 MHz, in 25 KHz and 8.33 kHz steps.

  • Page 233: Trouble-Shooting

    DV 20 E AMM Communications AIRCRAFT Trouble-Shooting 1. General This table tells you how to troubleshoot the speech communication system. If you find the trouble in column 1 do the repair given in column 3. Trouble Possible Cause Repair Note: For the faults shown below: use the hand mic, set the intercom to OFF, listen to the speaker or pilot’s headphones.
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  • Page 235: Maintenance Practices

    DV 20 E AMM Communications AIRCRAFT Maintenance Practices 1. General This part gives you the data to remove/install and adjust/test the components of the speech communication systems on the airplane. See the component manufacturers manuals for more data and for shop data. 2.
  • Page 236 Communications DV 20 E AMM AIRCRAFT B. Install the Garmin GTN 650 Detail Steps/Work Items Key Items/References Remove the protective covers from the rear connectors on the unit. Slide the unit into the rack. Engage the locking screw so that the latch front lobe touches the rack.
  • Page 237 DV 20 E AMM Communications AIRCRAFT C. Garmin GTN 650 Adjustment/Test If possible, do an operational flight check after the radio has been replaced. Alternatively, use a test set to make sure that the system operates correctly. Refer to the appropriate installation manual for performance specifications.

  • Page 238: Remove/Install The Gtr 225A Vhf Com Transceiver

    Communications DV 20 E AMM AIRCRAFT 3. Remove/Install the GTR 225A VHF COM Transceiver A. Remove the GTR 225A VHF COM Transceiver Detail Steps/Work Items Key Items/References Open the COM2 circuit-breaker. Put a 3/32 allen wrench into the access hole for Refer to Figure 4.

  • Page 239: Antennas

    DV 20 E AMM Communications AIRCRAFT B. Install the GTR 225A VHF COM Transceiver Detail Steps/Work Items Key Items/References Remove the protective covers from the rear connectors on the unit. Insert the transceiver slowly into the mounting Refer to Figure 4. rack.
  • Page 240 Communications DV 20 E AMM AIRCRAFT Figure 4: GTR 225A VHF COM Transceiver Removal/Installation Page 206 Doc # 4.02.25 23-10-00 15 Mar 2022 Rev. 2...

  • Page 241: Audio Integration

    DV 20 E AMM Communications AIRCRAFT Section 23-50 Audio Integration 1. General The DV 20 E airplane has a voice-activated (VOX) intercom. This gives hands-free intercom when the pilots use head-sets. Press-to-transmit switches are installed in the handle of each control stick. The microphone and the phone jack-sockets are located between the pilot's seats at shoulder height.
  • Page 242 Communications DV 20 E AMM AIRCRAFT GARMIN GMA 340 A O M TEST COM 1 COM 2 COM 3 NAV 1 NAV 2 SPKR PILOT COM 1 COM 2 COM 3 OFF/ CABIN AUDIO ICS ISOLATION PULL SENS CREW PASS PILOT COPILOT Marker Beacon Lights...

  • Page 243: Trouble-Shooting

    DV 20 E AMM Communications AIRCRAFT Trouble-Shooting 1. General This table tells you how to trouble-shoot the audio integrating system. If you find the trouble in column 1 do the repair given in column 3. Refer to Garmin GMA 340 Audio Panel, Maintenance Manual, Doc No.190-00149-02, latest revision, for detailed troubleshooting procedure.
  • Page 244 Communications DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair No audio on pilot’s head-set Faulty head-set. Replace head-set. with the audio panel switched OFF. Do a test of the head-set audio Open audio line. wiring. Refer to Chapter 92 for the wiring diagrams.

  • Page 245: Maintenance Practices

    DV 20 E AMM Communications AIRCRAFT Maintenance Practices 1. General This part gives you the data to remove/install and adjust/test the components of audio integrating system on the airplane. See the component manufacturers manuals for more data and for shop data. 2.
  • Page 246 Communications DV 20 E AMM AIRCRAFT B. Install the GMA 340 Audio Panel Detail Steps/Work Items Key Items/References Remove the protective covers from the connectors on the replacement unit. Slide the unit into the rack. Engage the locking screw so that the latch front lobe touches the rack.
  • Page 247 DV 20 E AMM Communications AIRCRAFT Detail Steps/Work Items Key Items/References Do a failsafe operation check as follows: S Turn the power OFF to the unit by rotating the pilot intercom knob counter clockwise. S Check the failsafe operation by exercising the COM 1 microphone, microphone key and audio over the headphones.
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  • Page 249 DV 20 E AMM Communications AIRCRAFT Section 23-60 Static Discharging 1. General A special bonding system is necessary for the composite structure of the DV 20 E airplane. The composite structure does not conduct electricity. Copper foil tape bonds to the inside of the structure to make a conducting path.
  • Page 250 Communications DV 20 E AMM AIRCRAFT Copper Tape Braided Cable Faston Tab Bolted Connection To Rear Fuselage Antenna Ground Plane Grounding Stud To Fuel Tank B-Bulkhead To Fuel Filter Antenna Ground To Landing Gear Plane To Wing: Pitot Tube Aileron Bellcrank External Lights To Wing: To Flap Actuator...
  • Page 251 DV 20 E AMM Electrical Power AIRCRAFT CHAPTER 24 ELECTRICAL POWER Doc # 4.02.25 Page 1 24-TITLE Rev. 2 15 Mar 2022...
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  • Page 253 DV 20 E AMM Electrical Power AIRCRAFT TABLE OF CONTENTS CHAPTER 24 ELECTRICAL POWER General ............1 14 VDC System Description and Operation .
  • Page 254 Electrical Power DV 20 E AMM AIRCRAFT Maintenance Practices General ............201 Electrical Safety .

  • Page 255: Electrical Power

    DV 20 E AMM Electrical Power AIRCRAFT CHAPTER 24 ELECTRICAL POWER 1. General The DV 20 E has a 14 V DC electrical system. This chapter describes the electrical system of the DV 20 E. This Chapter has only simplified schematic diagrams and location diagrams. Refer to Chapter 92 for the wiring diagrams.
  • Page 256 Electrical Power DV 20 E AMM AIRCRAFT (3) External Alternator (optional) The external alternator is in the scope of supply of the BRP Rotax 912iS engine. The external alternator is controlled by an integrated regulator. Refer to Section 24-30 for more information of DC Generation.
  • Page 257 DV 20 E AMM Electrical Power AIRCRAFT (6) Engine Master Relay The Engine Master relay connects the main bus to the GEN circuit-breaker. The ELECTRIC MASTER and ENGINE MASTER switches control the engine master relay. The GEN circuit- breaker connects to the fuse box and the start power relay. (7) Start Power Relay The start power relay connects only during engine start-up, the ECU, ignition system and Lane A/B Fail lamps with the main battery.
  • Page 258 Electrical Power DV 20 E AMM AIRCRAFT Figure 1: Electrical Schematic (Simplified) Page 4 Doc # 4.02.25 24-00-00 15 Mar 2022 Rev. 2...
  • Page 259 DV 20 E AMM Electrical Power AIRCRAFT Figure 2: External Alternator Electric Schematic Simplified (if OÄM 20-245/b is installed) Doc # 4.02.25 Page 5 24-00-00 Rev. 2 15 Mar 2022...

  • Page 260: Electrical Loads

    Electrical Power DV 20 E AMM AIRCRAFT 3. Electrical Loads Electrical Loads Description Current (A) Audio Panel (GMA 340) 2.20 Comm#1 (GTN 650) 0.45 GPS/NAV (GTN 650) 2.20 Transponder (GTX 328) 1.60 Comm#2 (GTR 225) 0.59 PFD/MFD (GDU 620) 3.90 AHRS (GRS 77) 0.60 ADC (GDC 74A)

  • Page 261: Dc Generation

    DV 20 E AMM Electrical Power AIRCRAFT Section 24-30 DC Generation 1. General The DC generation system for the DV 20 E has these components: Alternators. Alternator current sensor. Voltage regulators. This Section gives you only the simplified description for the generation system. Refer to Section 24-00 and to the engine manufacturer’s documentation for the full system description, operation and troubleshooting.
  • Page 262 Electrical Power DV 20 E AMM AIRCRAFT D. Alternator regulators The electrical system of the BRP Rotax 912 iS also includes two separate regulators. The alternator regulators are on the fuse box in the engine compartment. One controls the output of alternator A and the other controls the output of alternator B.

  • Page 263: Battery System

    DV 20 E AMM Electrical Power AIRCRAFT Section 24-31 Battery System 1. General This Section tells you about the battery system. See Section 24-00 and 24-32 for the description and operation of the battery in the electrical generation system. The battery is mounted at the left side of the firewall. When the generator voltage is greater than the battery voltage, the generator charges the battery.
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  • Page 265: Trouble-Shooting

    DV 20 E AMM Electrical Power AIRCRAFT Trouble-Shooting 1. General The table below lists the defects you could have with the battery system. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
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  • Page 267: Maintenance Practices

    DV 20 E AMM Electrical Power AIRCRAFT Maintenance Practices 1. General Keep the battery clean. Remove grease and other contaminants from the battery case. Remove dirt from the area of the terminals. Protect the terminals and cable lugs with Dow Corning compound 4 (DC4).

  • Page 268: Disconnect/Connect The Battery For Maintenance

    Electrical Power DV 20 E AMM AIRCRAFT B. Install the Battery in the Airplane Detail Steps/Work Items Key Items/References Make sure that the battery is clean and dry. Move the battery into position in the battery mount. CAUTION: MAKE SURE THAT YOU CONNECT THE CABLES TO THE CORRECT TERMINALS.

  • Page 269: Remove/Install The Battery Relay

    DV 20 E AMM Electrical Power AIRCRAFT B. Connect the Battery after Maintenance Detail Steps/Work Items Key Items/References CAUTION: MAKE SURE THAT YOU CONNECT THE CABLES TO THE CORRECT TERMINALS. INCORRECT CONNECTION CAN DAMAGE THE ELECTRICAL AND AVIONIC SYSTEMS. Connect the positive cable to the positive battery Apply Dow Corning compound (DC4) to terminal.
  • Page 270 Electrical Power DV 20 E AMM AIRCRAFT B. Install the Battery Relay Detail Steps/Work Items Key Items/References Put the relay in position on the firewall and install the bolts, washers and nuts. Connect the electrical cables to the relay. Refer to Chapter 92 for the wiring diagrams.

  • Page 271: General

    DV 20 E AMM Electrical Power AIRCRAFT Section 24-60 DC Electrical Load Distribution 1. General This Section tells you about the system which supplies DC electrical power for other systems. The DC electrical load distribution system has these components: Main bus. Avionic bus.
  • Page 272 Electrical Power DV 20 E AMM AIRCRAFT Figure 1: Electrical System Bus Structure Diagram Page 2 Doc # 4.02.25 24-60-00 15 Mar 2022 Rev. 2...
  • Page 273 DV 20 E AMM Electrical Power AIRCRAFT Figure 2: Addition to Electrical Bus Structure Diagram (if OÄM 20-245/b is installed) Doc # 4.02.25 Page 3 24-60-00 Rev. 2 15 Mar 2022...
  • Page 274 Electrical Power DV 20 E AMM AIRCRAFT Figure 3: Electrical Switches and Circuit-Breakers Page 4 Doc # 4.02.25 24-60-00 15 Mar 2022 Rev. 2...
  • Page 275 DV 20 E AMM Electrical Power AIRCRAFT Figure 4: Electrical Switches and Circuit-Breakers (if OÄM 20-245/b is installed) Doc # 4.02.25 Page 5 24-60-00 Rev. 2 15 Mar 2022...
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  • Page 277 DV 20 E AMM Electrical Power AIRCRAFT Trouble-Shooting 1. General Make sure that the alternator is supplying power and that there is 14 VDC on the main bus. For faults on a piece of equipment, or a system, refer to the applicable Chapter. For example, for no oil pressure indication, see Chapter 77 - Engine Indicating.
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  • Page 279: Electrical Safety

    DV 20 E AMM Electrical Power AIRCRAFT Maintenance Practices 1. General This Section tells you how to remove/install components of the DC load distribution system. Refer to the component manufacturers' manuals for more data and shop data. 2. Electrical Safety The DV 20 E has a low voltage DC electrical system.

  • Page 280: Remove/Install The Avionics Master Relay

    Electrical Power DV 20 E AMM AIRCRAFT 3. Remove/Install the Avionics Master Relay A. Remove the Avionics Master Relay Detail Steps/Work Items Key Items/References Disconnect the battery for maintenance. Refer to Section 24-31. Remove the instrument panel cover. Disconnect the electrical cables from the relay. Remove the bolt, washer and nut which attach the relay to the instrument panel floor.

  • Page 281: Remove/Install A Circuit-Breaker

    DV 20 E AMM Electrical Power AIRCRAFT 4. Remove/Install a Circuit-Breaker A. Remove a Circuit-Breaker Detail Steps/Work Items Key Items/References Disconnect the main battery for maintenance. Refer to Section 24-31. Remove the instrument panel cover. Remove the nuts and washers which attach the Do this for all circuit-breakers attached circuit-breakers to the instrument panel.

  • Page 282: Remove/Install An Instrument Panel Switch

    Electrical Power DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Do a functional test of the circuit-breaker: S Set the ELECTRIC MASTER switch to ON. S Operate the electrical system related to the Apply the full electrical load to the circuit-breaker you will test.
  • Page 283 DV 20 E AMM Electrical Power AIRCRAFT Detail Steps/Work Items Key Items/References Remove the switch from the instrument panel: S Press the locking clips at the side of the With your fingers from the back of the switch to release the switch from the instrument panel.
  • Page 284 Electrical Power DV 20 E AMM AIRCRAFT Use the procedures in Sub-paragraphs C and D for these nut secured switches/buttons: START. ENGINE MASTER. LANE SELECTOR. FUEL PUMP TEST. BATTERY BACKUP. C. Remove a Nut-Secured-Type Instrument Panel Switch Detail Steps/Work Items Key Items/References Disconnect the main battery for maintenance.
  • Page 285 DV 20 E AMM Electrical Power AIRCRAFT D. Install a Nut-Secured-Type Instrument Panel Switch Detail Steps/Work Items Key Items/References Move the switch into position near to the switch electrical cables. Connect the electrical cables to the switch. Refer to Chapter 92 for the Wiring Diagrams.
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  • Page 287 DV 20 E AMM Equipment/Furnishings AIRCRAFT CHAPTER 25 EQUIPMENT/FURNISHINGS Doc # 4.02.25 Page 1 25-TITLE Rev. 2 15 Mar 2022...
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  • Page 289 DV 20 E AMM Equipment/Furnishings AIRCRAFT TABLE OF CONTENTS CHAPTER 25 EQUIPMENT FURNISHINGS General ............1 Section 25-10 Flight Compartment General .
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  • Page 291: General

    DV 20 E AMM Equipment/Furnishings AIRCRAFT CHAPTER 25 EQUIPMENT FURNISHINGS 1. General This chapter describes about the equipment and furnishing in the flight compartment. Chapter 25-10 includes the cabin trim panels, pilot's seats and safety belts. Chapter 25-60 gives the data for the Emergency Location Transmitter (ELT).
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  • Page 293: Flight Compartment

    DV 20 E AMM Equipment/Furnishings AIRCRAFT Section 25-10 Flight Compartment 1. General The flight compartment contains fixed seats for two pilots. Each pilot has a safety belt. The fuselage shell has fabric wall panels. GFRP or CFRP moldings make the instrument panel cover and the center console.
  • Page 294 Equipment/Furnishings DV 20 E AMM AIRCRAFT F. Baggage Compartment Floor Panel The baggage compartment floor has three pieces. You can remove the center piece by itself. The outer pieces make stowage boxes. The pieces are made of GFRP or CFRP. G.

  • Page 295: Maintenance Practices

    DV 20 E AMM Equipment/Furnishings AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove/install the seats and other furnishings. Refer to Chapter 25-60 for data about the ELT. 2. Remove/Install a Pilot’s Seat A. Remove a Pilot’s Seat Detail Steps/Work Items Key Items/References Release the press-studs which hold the seat...
  • Page 296 Equipment/Furnishings DV 20 E AMM AIRCRAFT Figure 2: Safety Belt Installation Page 202 Doc # 4.02.25 25-10-00 15 Mar 2022 Rev. 2...

  • Page 297: Remove/Install A Safety Belt

    DV 20 E AMM Equipment/Furnishings AIRCRAFT 3. Remove/Install a Safety Belt A. Remove a Safety Belt Detail Steps/Work Items Key Items/References Release the bolts that attach the shoulder Refer to Figure 2. straps, or remove the cover and the three screws that attach the inertia reels.
  • Page 298 Equipment/Furnishings DV 20 E AMM AIRCRAFT Figure 3: Baggage Compartment Floor Panel Installation Page 204 Doc # 4.02.25 25-10-00 15 Mar 2022 Rev. 2...

  • Page 299: Remove/Install The Instrument Panel Cover

    DV 20 E AMM Equipment/Furnishings AIRCRAFT 4. Remove/Install the Instrument Panel Cover A. Remove the Instrument Panel Cover Detail Steps/Work Items Key Items/References Remove the screws which attach the instrument panel cover to the instrument panel and the fuselage. Lift the cover far enough to give access to the defrost hoses..

  • Page 300: Remove/Install The Baggage Compartment Floor Panel

    Equipment/Furnishings DV 20 E AMM AIRCRAFT 5. Remove/Install the Baggage Compartment Floor Panel Refer to Figure 3. A. Remove the Baggage Compartment Floor Panel Detail Steps/Work Items Key Items/References Remove inertia reel covers, if fitted. Remove the screws around the aft edge of the center floor panel.

  • Page 301: Cleaning

    DV 20 E AMM Equipment/Furnishings AIRCRAFT Detail Steps/Work Items Key Items/References Loosely install the screws along the aft edge of the center panel. Install inertia reel covers, if fitted. Tighten all of the screws. 6. Cleaning A. Seats The seat cushions are a fire resistant material. Clean the cushions with a vacuum cleaner. Use a mild soap solution to remove stains.
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  • Page 303: Emergency Equipment

    DV 20 E AMM Equipment/Furnishings AIRCRAFT Section 25-60 Emergency Equipment 1. General This chapter describes about the optional ARTEX ELT model ME 406. Refer to the manufacturer's Operator's Manual for more data. 2. Description A. ELT Equipment (1) Location The ME 406 ELT is located in a mounting bracket on the right side of the rear fuselage compartment adjacent to the baggage tray.

  • Page 304: Operation

    Equipment/Furnishings DV 20 E AMM AIRCRAFT B. ELT Batteries The ME 406 ELT has its own battery pack to supply electrical power. When the ELT is ON and transmitting, the batteries will keep the ELT transmitting the 121.5 MHz frequency until battery power is drained out and will transmit the 406.028 MHz frequency for up to 24 hours.
  • Page 305 DV 20 E AMM Equipment/Furnishings AIRCRAFT Figure 1: ARTEX Model ME 406 ELT Installation Doc # 4.02.25 Page 3 25-60-00 Rev. 2 15 Mar 2022...
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  • Page 307: Trouble-Shooting

    DV 20 E AMM Equipment/Furnishings AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the ELT system. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair ELT does not operate on test. ELT batteries discharged.
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  • Page 309: Maintenance Practices

    DV 20 E AMM Equipment/Furnishings AIRCRAFT Maintenance Practices 1. General This chapter describes how to: Remove and install the ELT. Test the ELT in the airplane. Replace the batteries in the ELT. This chapter also describes the periodic maintenance necessary to maintain the ELT equipment in a serviceable condition.
  • Page 310 Equipment/Furnishings DV 20 E AMM AIRCRAFT Artex Antenna Artex Buzzer Artex ELT Strap Figure 2: Removal/Installation of ME 406 ELT Page 202 Doc # 4.02.25 25-60-00 15 Mar 2022 Rev. 2...
  • Page 311 DV 20 E AMM Equipment/Furnishings AIRCRAFT B. Install the ELT Detail Steps/Work Items Key Items/References NOTE: If the ELT is moved to a different airplane which it was originally registered with, then the ELT must be registered and the product label re-marked to indicate the new programming and/or new country of registry.

  • Page 312: Elt Functional Test

    Equipment/Furnishings DV 20 E AMM AIRCRAFT 3. ELT Functional Test CAUTION: DO NOT ALLOW THE TEST DURATION TO EXCEED 5 SECONDS. THE ELT WILL TRANSMIT A 406.025 MHZ SIGNAL AFTER THE ELT IS ACTIVE FOR APPROXIMATELY 47 SECONDS. THE SATELLITE SYSTEM CONSIDERS THIS TRANSMISSION TO BE A VALID DISTRESS SIGNAL.

  • Page 313: Replace The Elt Batteries

    DV 20 E AMM Equipment/Furnishings AIRCRAFT 4. Replace the ELT Batteries You must only use a battery pack that is supplied by the equipment manufacturer. NOTE: The battery pack contains components that are sensitive to static electricity. You must take electro-static discharge precautions before doing work on the battery pack.

  • Page 314: Elt Periodic Inspection

    Equipment/Furnishings DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Install the 8 screws that attach the battery pack to the ELT. (10) Install the ELT in the airplane mounting and Refer to Paragraph 2. attach the Battery Pack Replacement Date label to the top surface of the ELT protective cover where it can be easily seen.
  • Page 315 DV 20 E AMM Fire Protection AIRCRAFT CHAPTER 26 FIRE PROTECTION Doc # 4.02.25 Page 1 26-TITLE Rev. 2 15 Mar 2022...
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  • Page 317 DV 20 E AMM Fire Protection AIRCRAFT TABLE OF CONTENTS CHAPTER 26 FIRE PROTECTION General ............1 Description .
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  • Page 319 DV 20 E AMM Fire Protection AIRCRAFT CHAPTER 26 FIRE PROTECTION 1. General This chapter describes the fire extinguisher installed in the airplane. Refer to the manufacturer’s manual for more data about the fire extinguisher. 2. Description Figure 1 shows the installation of the fire extinguisher in the airplane. The fire extinguisher is located behind the right seat in the baggage compartment.
  • Page 320 Fire Protection DV 20 E AMM AIRCRAFT Figure 1: Fire Extinguisher Installation Page 2 Doc # 4.02.25 26-00-00 15 Mar 2022 Rev. 2...
  • Page 321 DV 20 E AMM Flight Controls AIRCRAFT CHAPTER 27 FLIGHT CONTROLS Doc # 4.02.25 Page 1 27-TITLE Rev. 2 15 Mar 2022...
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  • Page 323 DV 20 E AMM Flight Controls AIRCRAFT TABLE OF CONTENTS CHAPTER 27 FLIGHT CONTROLS General ............1 Description .
  • Page 324 Flight Controls DV 20 E AMM AIRCRAFT Trouble-Shooting General ............101 Maintenance Practices General .
  • Page 325 DV 20 E AMM Flight Controls AIRCRAFT Section 27-50 Flight Controls - Flaps General ............1 Description .
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  • Page 327: General

    DV 20 E AMM Flight Controls AIRCRAFT CHAPTER 27 FLIGHT CONTROLS 1. General This chapter describes about the operation and the adjustment of the flight controls. It also describes about the assembly of the flight controls. Refer to the related section for the data on a specified system.
  • Page 328 Flight Controls DV 20 E AMM AIRCRAFT Figure 1: Standard Control Rod Page 2 Doc # 4.02.25 27-00-00 15 Mar 2022 Rev. 2...

  • Page 329: Maintenance Practices

    DV 20 E AMM Flight Controls AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the control stick. WARNING: DO ALL THE STEPS OF THE CONTROL STICK INSTALL PROCEDURE CAREFULLY. CONTROL FAILURE CAN OCCUR IF THE CONTROL STICK INSTALLATION PROCEDURE IS NOT DONE CORRECTLY.

  • Page 330: Remove/Install The Control Stick

    Flight Controls DV 20 E AMM AIRCRAFT 2. Remove/Install the Control Stick A. Remove the Control Stick Detail Steps/Work Items Key Items/References Remove the pilots’ seats. Refer to Section 25-10. Make sure that the area around the controls/ control surfaces is clear of personnel/ equipment.
  • Page 331 DV 20 E AMM Flight Controls AIRCRAFT B. Install the Control Stick Detail Steps/Work Items Key Items/References Examine the bearing of the aileron control rod. Refer to Section 27-10, Figure 1. Make sure it is serviceable before you install the control stick.
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  • Page 333: Flight Controls - Aileron And Tabs

    DV 20 E AMM Flight Controls AIRCRAFT Section 27-10 Flight Controls - Aileron and Tabs 1. General The DV 20 E airplane has two control sticks that operate the ailerons. The aileron control system uses control rods and bellcranks. A fixed trim tab attaches to the trailing edge of the left aileron. Figure 1 shows the aileron controls in the fuselage, and Figure 2 shows the aileron controls in the wing.

  • Page 334: Operation

    Flight Controls DV 20 E AMM AIRCRAFT 3. Operation If you move the control sticks to the left: The control rods connected to the stick move to the right The forward bellcrank moves the control rod below the center console to the rear The control rod below the center console moves the rear bellcrank so that the long control rods in the wing move to the left The aileron bellcrank in the left wing moves the short control rod attached to the left aileron horn...
  • Page 335 DV 20 E AMM Flight Controls AIRCRAFT Figure 1: Aileron Controls in the Fuselage Doc # 4.02.25 Page 3 27-10-00 Rev. 2 15 Mar 2022...
  • Page 336 Flight Controls DV 20 E AMM AIRCRAFT Figure 2: Aileron Controls in the Wing Page 4 Doc # 4.02.25 27-10-00 15 Mar 2022 Rev. 2...

  • Page 337: Trouble-Shooting

    DV 20 E AMM Flight Controls AIRCRAFT Trouble-Shooting 1. General The table below lists defects you could have in the aileron control system. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
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  • Page 339: Maintenance Practices

    DV 20 E AMM Flight Controls AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to do test procedures on the aileron control system and how to adjust the aileron control system. Refer to paragraphs 4 and 5 for removal, installation and access data on the control rods and bellcranks.
  • Page 340 Flight Controls DV 20 E AMM AIRCRAFT B. Aileron Control Test Procedure Detail Steps/Work Items Key Items/References Make a copy of the Control Adjustment Report. Refer to Section 06-00. S Use it to record the measurements. Set the flaps to the CRUISE position. Refer to Section 27-50.
  • Page 341 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References Move the control stick fully to the right and hold it against the stop. (10) Measure the angle between the trailing edge of The left aileron must be between 15 and the right aileron and the trailing edge of the flap.
  • Page 342 Flight Controls DV 20 E AMM AIRCRAFT 3. Aileron Control System Adjustments If you cannot get the correct range of movement of the aileron control system, use this procedure to adjust the system. Gust travel refers to the amount of travel remaining at the control surface with the control stick held against the cockpit stop.
  • Page 343 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References Do a check of the two aileron control rods that The control sticks must be at 90 degrees connect the control sticks to the bellcrank at the to the aileron control rods (when you forward control bulkhead.
  • Page 344 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Do a check of the aileron control rods from the The aileron control rod must be at bellcrank at the aft control bulkhead to the 90 degrees to the bellcrank arm at the bellcranks at the left/right wings.
  • Page 345 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References (11) Remove the control stick lock: S Loosen the aileron stops in the cockpit. S Make sure the stops are clear of the control sticks when the controls hit the stops in the wing.
  • Page 346 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (16) Do a check of the aileron control rod from the The aileron control rod must be at bellcrank at the forward control bulkhead to the 90 degrees to the bellcrank arm at the bellcrank at the aft control bulkhead.
  • Page 347 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References (22) Do a check of the aileron range of movement. Refer to Paragraph 2. (23) Do an inspection of all the controls that you have adjusted. S If necessary for your airworthiness authority, do a second inspection of the controls.
  • Page 348 Flight Controls DV 20 E AMM AIRCRAFT 4. Aileron Control Rod Access Aileron Rod Remove/Install Access References Between the control stick and the Pilots’ seats. Refer to Section 25-10. bellcrank at the forward control bulkhead. Between the bellcrank at the forward Pilots’...
  • Page 349 DV 20 E AMM Flight Controls AIRCRAFT Section 27-20 Flight Controls - Rudder and Tab 1. General The DV 20 E airplane has the usual rudder control system. Each pilot has a rudder pedal assembly. The pilot can adjust the pedal position. Control cables connect the pedal assembly to the rudder. A fixed trim tab gives a small amount of adjustment to the rudder trim.
  • Page 350 Flight Controls DV 20 E AMM AIRCRAFT Figure 1: Rudder Control System Page 2 Doc # 4.02.25 27-20-00 15 Mar 2022 Rev. 2...
  • Page 351 DV 20 E AMM Flight Controls AIRCRAFT Two cables ('Aft Fuselage cables') attach to the rear of the yoke in the center fuselage. The two cables have turnbuckles which can adjust the rudder control system. The two aft fuselage cables go through Teflon tubes in the rear fuselage.
  • Page 352 Flight Controls DV 20 E AMM AIRCRAFT Figure 2: Rudder Pedal Assembly Page 4 Doc # 4.02.25 27-20-00 15 Mar 2022 Rev. 2...
  • Page 353 DV 20 E AMM Flight Controls AIRCRAFT Figure 3: Thimble Installation Doc # 4.02.25 Page 5 27-20-00 Rev. 2 15 Mar 2022...
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  • Page 355: Trouble-Shooting

    DV 20 E AMM Flight Controls AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the rudder control system. If you have the trouble detailed in the Trouble column, read across to the Possible Cause column and then do the repair given in the Repair column.
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  • Page 357: Maintenance Practices

    DV 20 E AMM Flight Controls AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to do test procedures on the rudder control system and how to adjust the rudder control system. Refer to Section 55-40 to remove/install the rudder. WARNING: WHEN YOU DO WORK ON THE AIRPLANE CONTROLS, MAKE SURE THAT THE AREA AROUND THE CONTROLS/CONTROL SURFACES...
  • Page 358 Flight Controls DV 20 E AMM AIRCRAFT B. Rudder Control Test Procedure Detail Steps/Work Items Key Items/References Make a copy of the Control Adjustment Report. Refer to Section 06-00. S Use it to record the measurements. Set both rudder pedals fully forward. Set the rudder pedals central.
  • Page 359 DV 20 E AMM Flight Controls AIRCRAFT 3. Rudder Control System Adjustments If you cannot get the correct range of movement of the rudder control system, use this procedure to adjust the system. A. Equipment Item Quantity Part Number Cable tension gauge. Commercial.
  • Page 360 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Set the rudder pedals to fully left. The rudder position must be between 26 - 28 degrees to the left, when S The rudder must hit the stops at the rudder measured from the neutral position.
  • Page 361 DV 20 E AMM Flight Controls AIRCRAFT 4. Remove/Install the Rudder Control Cables A. Equipment Item Quantity Part Number Cable tension gauge. Commercial. Swaging tool. Commercial. B. Remove the Cockpit Rudder Control Cables (From the Firewall to the Yoke) Detail Steps/Work Items Key Items/References Remove the following items for access: S Pilots’...
  • Page 362 Flight Controls DV 20 E AMM AIRCRAFT C. Install the Rudder Control Cables (From the Firewall to the Yoke) Detail Steps/Work Items Key Items/References WARNING: ONLY TRAINED AND AUTHORIZED PERSONS SHOULD INSTALL CABLE EYE-ENDS. IF THE EYE ENDS ARE NOT INSTALLED CORRECTLY, THE RUDDER CONTROLS CAN FAIL.
  • Page 363 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References Disconnect the cable from the firewall bracket Refer to Figure 3. and swage the oval sleeve in accordance with AC 43.13-1B. S Inspect the cable eye end for correct assembly.
  • Page 364 Flight Controls DV 20 E AMM AIRCRAFT D. Remove the Aft Fuselage Rudder Control Cables (From the Yoke to the Rudder) Detail Steps/Work Items Key Items/References Remove the following items for access: S Pilots’ seats. Refer to Section 25-10. S Baggage compartment floor. Refer to Section 25-10.
  • Page 365 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References Attach the turnbuckle end of the cable to the yoke. S Set the turnbuckle to the middle of adjustment. Install the new thimble and the oval sleeve on the cable at the rudder lower mounting bracket.
  • Page 366 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Install the turnbuckle to the rudder yoke: S Install the bolt that attaches the turnbuckle to the rudder yoke. S Tighten the bolt. Torque to 6.5 Nm (4.6 lbf-ft). Install the rudder.
  • Page 367 DV 20 E AMM Flight Controls AIRCRAFT Section 27-30 Flight Controls - Elevator 1. General The DV 20 E airplane has the usual elevator flight controls. An elevator attached to the horizontal stabilizer gives longitudinal control. The two control sticks operate the elevator. 2.
  • Page 368 Flight Controls DV 20 E AMM AIRCRAFT Figure 1: Elevator Controls Page 2 Doc # 4.02.25 27-30-00 15 Mar 2022 Rev. 2...
  • Page 369 DV 20 E AMM Flight Controls AIRCRAFT 3. Operation If you move the control stick forward: The torque tube assembly turns. The lever below the torque tube assembly pushes the short control rod aft. The short control rod pushes the long control rod aft. The long control rod pushes the bellcrank rearward.
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  • Page 371 DV 20 E AMM Flight Controls AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the elevator control system. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
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  • Page 373 DV 20 E AMM Flight Controls AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to do test procedures on the elevator control system and how to adjust the elevator control system. Refer to Section 55-20 to remove/install the elevator.
  • Page 374 Flight Controls DV 20 E AMM AIRCRAFT B. Elevator Control Test Procedure Detail Steps/Work Items Key Items/References Make a copy of the Control Adjustment Report. Refer to Section 06-00. S Use it to record the measurements. Make sure the control stick is centered. Note: Use a protractor to make all measurements at the elevator control surface.
  • Page 375 DV 20 E AMM Flight Controls AIRCRAFT 3. Elevator Control System Adjustments If you cannot get the correct range of movement of the elevator control system, use this procedure to adjust the system. Gust travel refers to the amount of travel remaining at the control surface with the control stick held against the cockpit stop.
  • Page 376 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References WARNING: IF YOU DO AN ADJUSTMENT OF A CONTROL ROD, MAKE SURE THAT THE CONTROL ROD IS STILL IN SAFETY. IF YOU DO NOT DO THIS, THE CONTROL ROD CAN DISCONNECT. THIS CAN CAUSE DEATH OR INJURY TO PERSONS.
  • Page 377 DV 20 E AMM Flight Controls AIRCRAFT Section 27-31 Flight Controls - Elevator Trim-Mechanical 1. General The DV 20 E airplane has an elevator with an electrically-operated trim system. This lets you trim the airplane for different center of gravity positions. A switch on the control stick controls the elevator trim. An indicator tells the pilot the trim position.
  • Page 378 Flight Controls DV 20 E AMM AIRCRAFT DETAIL OF FORK ATTACHMENT TO ACTUATOR Lock Wire Hole Fork Nut Welded to Snubber Snubber Lock Wire Washer and Bolt Actuator Elevator Vertical Control Rod Top Spring Mount Fork Top Spring Fork Bush Snubber Bottom Spring Top Mounting Bracket...
  • Page 379 DV 20 E AMM Flight Controls AIRCRAFT 3. Operation If you push the front part of the trim switch with no load on the control column, the following happens: The actuator moves the fork assembly upwards. The fork assembly moves the spring-mount upwards. This compresses the top spring. It also extends the bottom spring.
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  • Page 381 DV 20 E AMM Flight Controls AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the elevator control trim system. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair in the Repair column.
  • Page 382 Flight Controls DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair No (or incorrect) position Elevator trim position indicator Adjust elevator trim position indication. out of adjustment. indicator. Elevator trim position indicator Replace the elevator trim defective. position indicator. Trim electric actuator Replace the trim electric Loss of stick-centering.
  • Page 383 DV 20 E AMM Flight Controls AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the elevator actuator. Refer to Section 55-20 to remove/install the elevator. 2. Remove/Install the Elevator Trim Actuator Refer to Figure 1. A.
  • Page 384 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Cut the locking wire from the bolt that attaches the fork assembly to the elevator trim actuator. S Remove the bolt and washer. S Remove the fork assembly. Carefully move the elevator trim actuator down until it clears the upper mounting bracket.
  • Page 385 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References WARNING: WHEN YOU DO WORK ON THE AIRPLANE CONTROLS, MAKE SURE THAT THE AREA AROUND THE CONTROLS/CONTROL SURFACES ARE CLEAR OF PERSONNEL/EQUIPMENT. IF YOU DO NOT DO THIS, INJURY TO PERSONNEL AND DAMAGE TO CONTROL SURFACES CAN OCCUR.
  • Page 386 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Mark the position of the trim actuator shaft in the nose up position. Using the elevator trim switch set the trim to full nose down. Mark the position of the trim actuator shaft in the nose down position.
  • Page 387 DV 20 E AMM Flight Controls AIRCRAFT Section 27-50 Flight Controls - Flaps 1. General The DV 20 E airplane has slotted flaps for landing and take-off. An electric flap actuator moves the flaps. Refer to Section 57-50 for data about the flap structure. A three-position toggle switch controls the flaps.
  • Page 388 Flight Controls DV 20 E AMM AIRCRAFT Figure 1: Flap Control System in the Fuselage Page 2 Doc # 4.02.25 27-50-00 15 Mar 2022 Rev. 2...
  • Page 389 DV 20 E AMM Flight Controls AIRCRAFT C. Flap Electrical Control Figure 3 shows the flap electrical controls. The main bus supplies power for the flaps. A 5 A circuit breaker protects the circuit. Refer to Section 92 for the wiring diagram. The flap electrical control system uses solid-state electronics.
  • Page 390 Flight Controls DV 20 E AMM AIRCRAFT Figure 2: Flap Controls in the Aft Control Bulkhead and Wing Page 4 Doc # 4.02.25 27-50-00 15 Mar 2022 Rev. 2...
  • Page 391 DV 20 E AMM Flight Controls AIRCRAFT 3. Operation If you operate the flap selector switch the following happens: The switch energizes the related logic circuit. The logic circuit switches on the related transistors to supply power/ground to the flap motor. The flap motor turns the reduction gear and spindle.
  • Page 392 Flight Controls DV 20 E AMM AIRCRAFT Flap Selector Switch Flap Position Indicator CRUISE CRUISE Flaps Flap Control Unit in Instrument Panel (View Looking Forward) Attaching Screws Cruise Indication and Cam on Actuator T/O Position Moving Control Rod Down Micro-Switch T/O Indication LDG Position Micro-Switch...
  • Page 393 DV 20 E AMM Flight Controls AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the flap system. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair in the Repair column. Trouble Possible Cause Repair...
  • Page 394 Flight Controls DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair Flap circuit-breaker opens Short to ground in the wires to Do an insulation test when the flaps have moved the electrical control unit from between each wire and only a short distance from the micro-switch 1.
  • Page 395 DV 20 E AMM Flight Controls AIRCRAFT Trouble Possible Cause Repair Flaps will not move to LDG Micro-switch 4 defective. Replace the micro-switch. position. Flaps move to T/O Open circuit in the micro-switch 4 Do a continuity test of the and CRUISE correctly.
  • Page 396 Flight Controls DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair CRUISE light stays on when Long side of cam making Rotate switch tray. contact. flaps are not in the CRUISE position. The other indications operate correctly. T/O light stays on when the Micro-switch 3 defective.

  • Page 397: Remove/Install The Flap Actuator

    DV 20 E AMM Flight Controls AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the components of the flap system and how to test and adjust the system. Refer to Section 57-50 for data about removing and installing the flaps.

  • Page 398: Test The Flap Control System

    Flight Controls DV 20 E AMM AIRCRAFT B. Install the Flap Actuator Detail Steps/Work Items Key Items/References Put the flap actuator in position in the fuselage. Make sure that the actuator is in the fully retracted position. Install the bolt which attaches the actuator to the forward mounting.
  • Page 399 DV 20 E AMM Flight Controls AIRCRAFT B. Procedure NOTE: This procedure assumes that the flap controls are fully connected. NOTE: Use the micro-switches to adjust the range of movement of both flaps. Use the short rods at the flap horns to adjust the angle of one flap against the other. Detail Steps/Work Items Key Items/References Open the FLAP circuit-breaker.
  • Page 400 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (18) Set the flap selector switch to CRUISE. (19) If the flap circuit-breaker opens: S Set the ELECTRIC MASTER switch to OFF. S Increase the length of both short control Make sure that the rod-ends are in rods by 1 turn at the flaps.
  • Page 401 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References (30) If necessary, adjust the angle with micro- Refer to Figure 3. switch 4: S Set the ELECTRIC MASTER switch to OFF. S Loosen the two attaching screws. S Move the switch a small distance.
  • Page 402 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (41) If necessary, adjust the angle with micro- Refer to Figure 3. switch 1: S Set the ELECTRIC MASTER switch to OFF. S Loosen the two attaching screws. S Move the switch a small distance.
  • Page 403 DV 20 E AMM Flight Controls AIRCRAFT Detail Steps/Work Items Key Items/References (52) If necessary, adjust the angle with micro- Refer to Figure 3. switch 3: S Set the ELECTRIC MASTER switch to OFF. S Loosen the two attaching screws. Move the switch forward to increase the S Move the switch a small distance.
  • Page 404 Flight Controls DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (62) If necessary, adjust the emergency up-stop. There must be a light load on the washers. (63) Remove the angle level. (64) Install the cover on the switch board of the flap actuator.
  • Page 405 DV 20 E AMM Fuel AIRCRAFT CHAPTER 28 FUEL Doc # 4.02.25 Page 1 28-TITLE Rev. 2 15 Mar 2022...
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  • Page 407: Maintenance Practices

    DV 20 E AMM Fuel AIRCRAFT TABLE OF CONTENTS CHAPTER 28 FUEL General ............1 Description .
  • Page 408 Fuel DV 20 E AMM AIRCRAFT Section 28-40 Fuel Indicating General ............1 Description .

  • Page 409: General

    DV 20 E AMM Fuel AIRCRAFT CHAPTER 28 FUEL 1. General This chapter describes the general data about the airframe fuel system. Refer to the engine maintenance manuals for data about the engine fuel system. 2. Description Figure 1 shows the fuel system schematic diagram. The DV 20 E airplane has the following fuel system components: A 24.5 US gallon (92.7 liters) fuel tank.
  • Page 410 Fuel DV 20 E AMM AIRCRAFT Flexible fuel hoses. An Air-Fuel Separator with integrated orifice. Page 2 Doc # 4.02.25 28-00-00 15 Mar 2022 Rev. 2...
  • Page 411 DV 20 E AMM Fuel AIRCRAFT Figure 1: Fuel System Schematic Doc # 4.02.25 Page 3 28-00-00 Rev. 2 15 Mar 2022...
  • Page 412 Fuel DV 20 E AMM AIRCRAFT 3. Operation With the fuel shut-off valve set to OPEN, fuel flows from the fuel tank to the engine through the following components: Maintenance shut-off valve. Gascolator. Electrically driven fuel pumps. Air fuel separator. Maintenance drain tap in the supply line.
  • Page 413 DV 20 E AMM Fuel AIRCRAFT Section 28-10 Fuel Storage 1. General This chapter describes in more detail the fuel tank installation. 2. Description Figure 1 shows the fuel tank. The standard capacity aluminum tank can hold 24.5 US gal (92.7 liter) total fuel of which 22.2 US gal (84 liter) is usable fuel.
  • Page 414 Fuel DV 20 E AMM AIRCRAFT Anchor Strap Fuel Quantity Sensor Worm Drive Hose Clamp Filler Neck Rubber Hose Vent Pipe Refuelling Ground Bonding Wire Cushion Mount x 2 Fuel Supply Connection Fuel Tank Fuel Return Connection Bonding Wire Drain Valve Finger Filter Hose with Worm Drive Clamps...

  • Page 415: Trouble-Shooting

    DV 20 E AMM Fuel AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the fuel storage system. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair Smell of fuel in the airplane. Fuel hose connection loose.
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  • Page 417: Maintenance Practices

    DV 20 E AMM Fuel AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install components and how to flush the fuel system. Refer to Chapter 28-00 for the system description and Chapter 28-40 for the fuel gauge installation.
  • Page 418 Fuel DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (11) Remove the tank from the airplane: Refer to Figure 2. S Lift the back of the tank upwards and forwards. S Turn the tank upside-down as you remove it over the seat back.

  • Page 419: Remove/Install The Fuel Tank

    DV 20 E AMM Fuel AIRCRAFT B. Install the Fuel Tank Detail Steps/Work Items Key Items/References Make sure that the rubber pads are in position on the spar bridge and the B-bulkhead. Put the fuel tank in position in the airplane. Refer to Figure 2.
  • Page 420 Fuel DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (11) Install the baggage compartment floor. (12) Connect the battery. Refer to Chapter 24-31. Page 204 Doc # 4.02.25 28-10-00 15 Mar 2022 Rev. 2...

  • Page 421: Remove/Install The Fuel Filler Neck

    DV 20 E AMM Fuel AIRCRAFT 3. Remove/Install the Fuel Filler Neck A. Remove the Fuel Filler Neck Refer to Figure 3. Detail Steps/Work Items Key Items/References On the airplane exterior, remove the six screws The screws are screwed into self from the fuel cap surround.
  • Page 422 Fuel DV 20 E AMM AIRCRAFT Figure 3: Fuel Filler Neck Removal/Installation Page 206 Doc # 4.02.25 28-10-00 15 Mar 2022 Rev. 2...
  • Page 423 DV 20 E AMM Fuel AIRCRAFT B. Install the Fuel Filler Neck Refer to Figure 3. Detail Steps/Work Items Key Items/References Inside the baggage compartment, connect the Do not tighten the hose-clamp hose to the fuel filler neck. immediately. Connect the drain tube. Connect the ground strap to the ground tab with the bolt, two washers and locknut.

  • Page 424: Flush The Fuel System Procedure

    Fuel DV 20 E AMM AIRCRAFT 4. Flush the Fuel System Procedure This procedure describes how to flush the fuel feed pipe from the fuel tank to the engine bay. Obey the usual safety precautions when you do work on the fuel system. WARNING: DO NOT ALLOW HEAT OR FIRE NEAR FUEL.
  • Page 425 DV 20 E AMM Fuel AIRCRAFT Detail Steps/Work Items Key Items/References Set the EMERGENCY FUEL PUMP switch to S Do a leak check of the fuel feed hose connection. S Set the EMERGENCY FUEL PUMP switch to OFF. S Set the ELECTRIC MASTER switch to OFF. (10) Install the engine cowlings.

  • Page 426: Replace The Fuel Cap O-Rings

    Fuel DV 20 E AMM AIRCRAFT 5. Replace the Fuel Cap O-Rings This procedure describes how to flush the fuel feed pipe from the fuel tank to the engine bay. Obey the usual safety precautions when you do work on the fuel system. WARNING: DO NOT ALLOW HEAT OR FIRE NEAR FUEL.

  • Page 427: Fuel Distribution

    DV 20 E AMM Fuel AIRCRAFT Section 28-20 Fuel Distribution 1. General This chapter describes in more detail the fuel distribution system. Refer to the Rotax engine manuals for more data about the engine fuel system. 2. Description Figure 1 shows the location of the fuel distribution system components in the airplane. The fuel distribution system has the following components: A.
  • Page 428 Fuel DV 20 E AMM AIRCRAFT Fuel Supply Hoses Fuel Tank Electrical Fuel Pump Air-Fuel Separator Fuel Return Connection Gascolator Maintenance Shut-Off Valve Maintenance Drain Taps Fuel Supply Connection Shut-Off Valve Lever Shut-Off Valve Figure 1: Fuel Distribution System Page 2 Doc # 4.02.25 28-20-00 15 Mar 2022...
  • Page 429 DV 20 E AMM Fuel AIRCRAFT E. Air-Fuel-Separator The air-fuel-separator is located in front of the fuel tank and assures via a return vent line, that air in the fuel line is separated prior to reaching the engine. F. Fuel Shut-Off Valve Figure 2 shows the Fuel shut-off valve.
  • Page 430 Fuel DV 20 E AMM AIRCRAFT Instrument Panel Latch Spring Fuel Shut-Off Handle Center Console Side Plate Lever Elbow Shut-Off Valve Shut-Off Valve Shaft Seal Bulkhead Connector Cover Firewall Elbow Thru-Nuts Fuel Return Hose Fuel Shut-Off Bracket To Engine Fuel Feed Hose From Engine Figure 2: Fuel Shut-Off Valve Page 4...

  • Page 431: General

    DV 20 E AMM Fuel AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the fuel distribution system. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair Smell of fuel in the airplane. Fuel hose connection loose.
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  • Page 433: General

    DV 20 E AMM Fuel AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install components. Refer to Chapter 28-00 for the system description. Obey the usual safety precautions when you do work on the fuel system. WARNING: DO NOT ALLOW HEAT OR FIRE NEAR FUEL.
  • Page 434 Fuel DV 20 E AMM AIRCRAFT B. Install the Electric Fuel Pump Unit Detail Steps/Work Items Key Items/References Put the fuel pump unit in position in the airplane. Install the four nuts that attach the fuel pump Refer to Chapter 20 for torque value. unit to the fuel pump bracket.
  • Page 435 DV 20 E AMM Fuel AIRCRAFT C. Clean the Filter Element in the Gascolator Detail Steps/Work Items Key Items/References Remove the fuel-tank access-panels from the bottom of the fuselage. Close the maintenance shut-off valve. Cut the lock-wire. Remove the bowl from the gascolator. Cut the lock-wire.

  • Page 436: Remove/Install The Fuel Shut-Off Valve

    Fuel DV 20 E AMM AIRCRAFT 3. Remove/Install the Fuel Shut-Off Valve A. Remove the Fuel Shut-Off Valve Refer to Figure 2. Detail Steps/Work Items Key Items/References Remove the top engine cowling. Refer to Chapter 71-10. Remove the fuel-tank access-panels from the bottom of the fuselage.
  • Page 437 DV 20 E AMM Fuel AIRCRAFT Detail Steps/Work Items Key Items/References (12) Remove the fuel shut-off valve. Put a cap on the fuel shut-off valve connections. B. Install the Fuel Shut-Off Valve Detail Steps/Work Items Key Items/References Remove the two caps from the fuel shut-off valve.

  • Page 438: Functional Test Of The Fuel Shut-Off Valve

    Fuel DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (15) Lock the maintenance valve open with wire. Lock the maintenance valve lever to the gascolator. (16) Install the fuel-tank access-panels below the fuselage. (17) Install the top engine cowling. Refer to Chapter 71-10.
  • Page 439 DV 20 E AMM Fuel AIRCRAFT Section 28-40 Fuel Indicating 1. General The DV 20 E airplane has a fuel quantity indicating system. The fuel quantity indicating system has a capacitive sensor. The gauge on the instrument panel measures the current flowing through the sensor.
  • Page 440 Fuel DV 20 E AMM AIRCRAFT Attaching Screws Fuel Quantity Sensor Gasket Attaching Screws Instrument Panel Fuel Quantity Indicator Figure 1: Location and Installation of the Fuel Indication Components Page 2 Doc # 4.02.25 28-40-00 15 Mar 2022 Rev. 2...
  • Page 441 DV 20 E AMM Fuel AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the fuel indicating system. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair Fuel quantity indication Fuel quantity senor and gauge Follow the procedures in incorrect.
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  • Page 443: Remove/Install The Fuel Quantity Sensor

    DV 20 E AMM Fuel AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the components and how to calibrate the fuel quantity indication system. Refer to Chapter 28-00 for the system description. 2. Remove/Install the Fuel Quantity Sensor A.
  • Page 444 Fuel DV 20 E AMM AIRCRAFT B. Install the Fuel Quantity Sensor Detail Steps/Work Items Key Items/References WARNING: DO NOT ALLOW HEAT OR FIRE NEAR FUEL. FUEL BURNS VIOLENTLY. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT. WARNING: DO NOT GET FUEL ON YOUR SKIN.

  • Page 445: Calibrate The Fuel Probe

    DV 20 E AMM Fuel AIRCRAFT 3. Calibrate the Fuel Probe NOTE: This calibration is only required if there is an error in the fuel quantity indication. Detail Steps/Work Items Key Items/References Remove the baggage compartment floor. Refer to Chapter 25-10. Empty Level Calibration: Fill the tank with the unusable fuel quantity (9 liters / 2.4 USgal)

  • Page 446: Remove/Install The Fuel Quantity Gauge

    Fuel DV 20 E AMM AIRCRAFT 4. Remove/Install the Fuel Quantity Gauge A. Remove the Fuel Quantity Gauge Detail Steps/Work Items Key Items/References Disconnect the airplane battery. Refer to Chapter 24-31. Remove the instrument panel cover for access. Refer to Chapter 25-10. Disconnect the wires from the fuel quantity gauge.
  • Page 447 DV 20 E AMM Indicating Systems AIRCRAFT CHAPTER 31 INDICATING SYSTEMS Doc # 4.02.25 Page 1 31-TITLE Rev. 2 15 Mar 2022...
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  • Page 449 DV 20 E AMM Indicating Systems AIRCRAFT TABLE OF CONTENTS CHAPTER 31 INDICATING SYSTEMS General ............1 Section 31-10 Instrument and Control Panels General .

  • Page 450: Maintenance Practices

    Indicating Systems DV 20 E AMM AIRCRAFT Trouble-Shooting General ............101 Maintenance Practices General .

  • Page 451: General

    DV 20 E AMM Indicating Systems AIRCRAFT CHAPTER 31 INDICATING SYSTEMS 1. General The DV 20 E airplane has the following indicating systems: An instrument panel: The instrument panel is made in one piece with a shelf. The shelf goes between the panel and the firewall.
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  • Page 453 DV 20 E AMM Indicating Systems AIRCRAFT Section 31-10 Instrument and Control Panels 1. General The DV 20 E airplane has the following instrument and control panels: An instrument panel: The instrument panel is made in one piece with a shelf. The shelf goes between the panel and the firewall.
  • Page 454 Indicating Systems DV 20 E AMM AIRCRAFT Figure 1: Instrument Panel Note: Figure 1 shows the typical installation position for the equipment. The actual installation may vary due to the approved equipment version. Major Instruments and Controls 1 GDU 620 Display 16 COM #2 2 Trim Indicator 17 Flap controller...
  • Page 455 DV 20 E AMM Indicating Systems AIRCRAFT B. Control Panel The control panel in the center console has two aluminum-alloy side-plates. Tubular spacers keep the side plates in position. Two square spacers hold the outer sheaths of the control cables. Long bolts with spacers go through the side plates.
  • Page 456 Indicating Systems DV 20 E AMM AIRCRAFT HEAT PARK BRAKE DEFROST FORWARD FLOOR PARK BRAKE Center Console Cover ALTERNATE POWER (View Looking Down) Friction Adjuster Parking Brake ALTERNATE POWER Heating Distribution Cabin Heat Propeller Throttle Alt Air FORWARD Center Console Cover Figure 2: Control Panel in the Center Console Page 4 Doc # 4.02.25...
  • Page 457 DV 20 E AMM Indicating Systems AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the instrument and control panels. If you find the trouble in column 1, do the repair given in column 3. Refer to the related AMM Chapter for other data on an instrument or switch.
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  • Page 459 DV 20 E AMM Indicating Systems AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the instrument and control panels. Refer to the related AMM Chapter for data about the indicators in other systems. WARNING: MAKE SURE THAT THE ENGINE IS SAFE BEFORE YOU REMOVE THE INSTRUMENT PANEL.
  • Page 460 Indicating Systems DV 20 E AMM AIRCRAFT B. Install the Control Panel Detail Steps/Work Items Key Items/References Move the forward cover into position over the heating control levers. Move the aft cover forward and down into Make sure that the wires for the trim position around the control levers.
  • Page 461 DV 20 E AMM Indicating Systems AIRCRAFT Section 31-20 Independent Instruments 1. General The airplane has an engine operated hour meter which is in the instrument panel. Refer to Figure 1 in Section 31-10. 2. Description and Operation A. Hour Meter (Hobbs Meter) The engine-operated hour meter is at the top right of the instrument panel.
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  • Page 463 DV 20 E AMM Indicating Systems AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the independent instruments. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair Hour meter does not operate. Hour meter defective.
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  • Page 465 DV 20 E AMM Indicating Systems AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the independent instruments. Refer to Chapter 92 for wiring diagrams. 2. Remove/Install the Hour Meter A. Remove the Hour Meter Detail Steps/Work Items Key Items/References Disconnect the airplane battery.
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  • Page 467 DV 20 E AMM Indicating Systems AIRCRAFT Section 31-50 Warning Systems 1. General The DV 20 E airplane has the following standard warnings: CANOPY warning. VOLTAGE warning. START warning. EMU caution. AWL caution 2. Description and Operation Figure 1 shows the location of the warnings. The warnings are in two annunciator units at the top of the instrument panel.
  • Page 468 Indicating Systems DV 20 E AMM AIRCRAFT Figure 1: Warning and Cautions Locations Page 2 Doc # 4.02.25 31-50-00 Rev. 2 15 Mar 2022...
  • Page 469 DV 20 E AMM Indicating Systems AIRCRAFT Figure 2: Warning and Cautions Location (if OÄM 20-245/b is installed) Doc # 4.02.25 Page 3 31-50-00 Rev. 2 15 Mar 2022...
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  • Page 471 DV 20 E AMM Indicating Systems AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the warning systems. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair Warning indication incorrect. Warning lamp bulb failed.
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  • Page 473: Replace A Warning Lamp Bulb

    DV 20 E AMM Indicating Systems AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the annunciator units. Refer to AMM Chapter 92 for wiring diagrams. 2. Replace a Warning Lamp Bulb Detail Steps/Work Items Key Items/References Set the ELECTRIC MASTER, ENGINE MASTER and BATTERY BACKUP switches...

  • Page 474: Remove/Install An Annunciator Unit

    Indicating Systems DV 20 E AMM AIRCRAFT 3. Remove/Install an Annunciator Unit A. Remove an Annunciator Unit Detail Steps/Work Items Key Items/References Disconnect the airplane battery. Refer to Chapter 24-31. Remove the instrument panel cover. Refer to Chapter 25-10. Disconnect the wires from the annunciator unit. Release the spring clips that hold the annunciator unit.

  • Page 475: Garmin G500 Integrated Display System

    DV 20 E AMM Indicating Systems AIRCRAFT Section 31-60 Garmin G500 Integrated Display System 1. General The DV 20 E has a Garmin G500 integrated display system. The system presents primary flight instrumentation, navigation and provides a moving map to the pilot through large format displays. Refer to Figure 1.
  • Page 476 Indicating Systems DV 20 E AMM AIRCRAFT A. GDU 620 Display The GDU 620 is a Primary Flight Display (PFD) and a Multi Function Display (MFD) that is interfaced to the other LRUs of the system installed on the airplane. The GDU 620 provides the following operations: Display of attitude (pitch and roll), rate of turn, slip/skid, heading, airspeed, altitude, and vertical speed information.
  • Page 477 DV 20 E AMM Indicating Systems AIRCRAFT Airspeed Indicator (ASI): The airspeed indicator is on the top of the display and indicates the airspeed on a rolling number gauge using a moving tape. The airspeed indicator also displays speed ranges for different airplane configurations, airspeed trends and 'V' speeds.
  • Page 478 Indicating Systems DV 20 E AMM AIRCRAFT C. GDC 74A Air Data Computer (ADC) The GDC 74A air data computer receives information from the pitot/static system and the GTP 59 outside air temperature (OAT) sensor. The GDC 74A is responsible for providing pressure altitude, airspeed, vertical speed, and OAT information to the G500 system.
  • Page 479 DV 20 E AMM Indicating Systems AIRCRAFT (2) Navigation Database The Jeppesen Navigation Database provides the G500 system with the required information for displaying flight plan information. The GDU 620 utilizes a database stored on an SD memory data card for easy updating and replacement. The Navigation database may be updated by simply inserting an updated Navigation database update card into the top SD card slot in the front panel in the GDU 620.
  • Page 480 Indicating Systems DV 20 E AMM AIRCRAFT Figure 1: Garmin G500 Integrated Display System Page 6 Doc # 4.02.25 31-60-00 Rev. 2 15 Mar 2022...

  • Page 481: General

    DV 20 E AMM Indicating Systems AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the GDU 620 display. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair Unit does not power up - blank Improper wiring;...
  • Page 482 Indicating Systems DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair Data is not being received from On the transmitting LRU, the Set the ARINC 429 transmitter an ARINC 429 device. (no data ARINC 429 transmitter speed speed to correct speed. is being received on the 429 is not set correctly.

  • Page 483: General

    DV 20 E AMM Indicating Systems AIRCRAFT Maintenance Practices 1. General The following maintenance procedures describe how to remove and install the following components of the Garmin G500 integrated display system. They do not describe how to maintain the components: GDU 620 Display.

  • Page 484: Remove/Install The Gdu 620 Display

    Indicating Systems DV 20 E AMM AIRCRAFT 2. Remove/Install the GDU 620 Display A. Remove the the GDU 620 Display Detail Steps/Work Items Key Items/References Disconnect the airplane battery. Refer to Chapter 24-31. Open the PFD circuit-breaker. 7.5 A on electrical bus. Remove the display unit: S Remove the six mounting screws that attach the display to the instrument panel.
  • Page 485 DV 20 E AMM Indicating Systems AIRCRAFT Detail Steps/Work Items Key Items/References Energize the GDU 620 in configuration mode. Refer to Garmin G500 STC AML Installation Manual, Document No. 190-01102-06, latest revision. Verify that the configurations settings match those recorded in the check out log. Energize the GDU 620 in normal mode.
  • Page 486 Indicating Systems DV 20 E AMM AIRCRAFT Connector Kit Garmin GDC 74A Unit 4 Minimum Fasteners Required (Hardware Not Supplied) Remote Mounting Rack Figure 2: GDC 74A Air Data Computer (ADC) Installation Page 204 Doc # 4.02.25 31-60-00 Rev. 2 15 Mar 2022...

  • Page 487: Remove/Install The Gdc 74A Air Data Computer (Adc)

    DV 20 E AMM Indicating Systems AIRCRAFT 3. Remove/Install the GDC 74A Air Data Computer (ADC) A. Remove the GDC 74A Air Data Computer (ADC) Detail Steps/Work Items Key Items/References Disconnect the airplane main battery. Refer to Chapter 24-31. Open the ADC circuit-breaker. 5 A electrical bus.

  • Page 488: Remove/Install The Grs77 Attitude, Heading And Reference Unit (Ahrs)

    Indicating Systems DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Energize the G500 system with GDU 620 in normal mode. Verify that the GDU 620 displays valid air data within approximately one minute. Verify that no unexpected alerts are present. If alerts are present, troubleshoot the system.
  • Page 489 DV 20 E AMM Indicating Systems AIRCRAFT Figure 3: GRS 77 Attitude, Heading and Reference System (AHRS) Installation Doc # 4.02.25 Page 207 31-60-00 Rev. 2 15 Mar 2022...
  • Page 490 Indicating Systems DV 20 E AMM AIRCRAFT B. Install the GRS77 Attitude, Heading and Reference Unit (AHRS) Detail Steps/Work Items Key Items/References Install the GRS77 unit: S Place the GRS77 on the mounting plate. Make sure that the orientation is correct. S Install the four thumbscrews that attach the Torque to 0.15 - 0.18 Nm (22 - 25 lbf-in).
  • Page 491 DV 20 E AMM Indicating Systems AIRCRAFT Pan Head Brass Screws GMU 44 Magnetometer Flat Head Brass Screws Aircraft Mounting Rack Figure 4: GMU 44 Magnetometer Assembly Installation Doc # 4.02.25 Page 209 31-60-00 Rev. 2 15 Mar 2022...

  • Page 492: Remove/Install The Gmu 44 Magnetometer

    Indicating Systems DV 20 E AMM AIRCRAFT 5. Remove/Install the GMU 44 Magnetometer A. Remove the GMU 44 Magnetometer Detail Steps/Work Items Key Items/References Disconnect the airplane battery. Refer to Chapter 24-31. Open the AHRS circuit-breaker. 5 A electrical bus. Open the access panel in the aft baggage compartment.

  • Page 493: Remove/Install The Temperature Probe (Gtp 59)

    DV 20 E AMM Indicating Systems AIRCRAFT Detail Steps/Work Items Key Items/References Energize the G500 system with GDU 620 in normal mode. Verify that the GDU 620 displays valid heading Note that heading can remain invalid if within approximately one minute. the magnetometer is near a large metal structure such as a hanger wall or if the magnetometer is close to a large ground...
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  • Page 495 Landing Gear DV 20 E AMM AIRCRAFT CHAPTER 32 LANDING GEAR Doc # 4.02.25 Page 1 32-TITLE Rev. 2 15 Mar 2022...
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  • Page 497 Landing Gear DV 20 E AMM AIRCRAFT TABLE OF CONTENTS CHAPTER 32 LANDING GEAR General ............1 Description and Operation .
  • Page 498 Landing Gear DV 20 E AMM AIRCRAFT Maintenance Practices General ............201 Remove/Install the Nose Landing Gear .

  • Page 499: Landing Gear

    Landing Gear DV 20 E AMM AIRCRAFT CHAPTER 32 LANDING GEAR 1. General The DV 20 E airplane has a fixed tricycle landing gear with a castoring nose wheel. This chapter gives you only the general description and operation. Refer to Chapter 32-10 for trouble-shooting and maintenance practices for the main gear. Refer to Chapter 32-20 for trouble-shooting and maintenance practices for the nose gear.
  • Page 500 Landing Gear DV 20 E AMM AIRCRAFT Figure 1: Location of Landing Gear Components Page 2 Doc # 4.02.25 32-00-00 15 Mar 2022 Rev. 2...

  • Page 501: Main Landing Gear

    Landing Gear DV 20 E AMM AIRCRAFT Section 32-10 Main Landing Gear 1. General This chapter describes the data for the main landing gear. It gives you the trouble-shooting and maintenance practices. Refer to Chapter 32-40 for data for the main wheels and the brakes. 2.
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  • Page 503: Trouble-Shooting

    Landing Gear DV 20 E AMM AIRCRAFT Trouble-Shooting 1. General The tables below explain how to troubleshoot the main landing gear and MLG tires. WARNING: YOU MUST DO A HARD LANDING CHECK AFTER A HARD LANDING. HARD LANDINGS CAN CAUSE DAMAGE TO THE STRUCTURE AS WELL AS THE LANDING GEAR.
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  • Page 505: Maintenance Practices

    Landing Gear DV 20 E AMM AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the components of the main landing gear. Refer to the manufacturer for further data. 2. Remove/Install the Main Landing Gear A.
  • Page 506 Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (11) Remove the nuts and the washers, the retaining Hold the strut. bar, the inserts and the brass strips at the outer mount attachment-bracket. (12) Note the location and thickness of UHMW inserts and brass strips at outer mount attachment.
  • Page 507 Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Put the strut in position. Move it inboard through the fuselage slot. Make sure that the inserts and brass strips remain in proper location as they tend to slide inboard during the strut installation.
  • Page 508 Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (16) Install the wheel fairing:- Install the outer bolt Airplane with wheel fairing option only. S Install the two screws on the inner side. (17) Lower the airplane with the jacks. (18) Do a test for correct adjustment of the landing See Paragraph 4.
  • Page 509 Landing Gear DV 20 E AMM AIRCRAFT Spar Bridge Inner Bolt Outer Bolt Plain Washer Inner Mount Outer Mount Belleville Washers UHMW Insert Plain Washer Brass Strip Bonding Tape Main Gear Strut Convex Washer GFRP Fairing (Optional) Concave Washer Plain Washer Brass Strip UHMW Insert Retaining Bar...
  • Page 510 Landing Gear DV 20 E AMM AIRCRAFT Figure 2: Main Landing Gear Page 206 Doc # 4.02.25 32-10-00 15 Mar 2022 Rev. 2...

  • Page 511: Remove/Install The Hardware At The Inner And Outer Mounts Of The Main Landing-Gear Strut

    Landing Gear DV 20 E AMM AIRCRAFT 3. Remove/Install the Hardware at the Inner and Outer Mounts of the Main Landing-Gear Strut A. Equipment Item Quantity Part Number Airplane jacks. Commercial. Tail Former. B. Remove the Hardware from the Inner/Outer Mount of the Main Landing-Gear Strut Refer to Figure 1 - 2.
  • Page 512 Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Remove the hardware from the outer mount of the main landing-gear strut, as follows: NOTE: The outer mount is not removed. NOTE: The bolts for the forward side and rear side are the same in length. The washers are installed on the bolt side and the nut side.
  • Page 513 Landing Gear DV 20 E AMM AIRCRAFT C. Install the Hardware from the Inner/Outer Mount of the Main Landing-Gear Strut Refer to Figure 1 - 2. Detail Steps/Work Items Key Items/References Install the hardware from the outer mount of the main landing-gear strut, as follows: Note: The outer mount is bonded to the spar bridge.
  • Page 514 Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Install the hardware from the inner mount of the main landing-gear strut, as follows: Note: The inner mount is bonded to the spar bridge. Note: The bolts for the forward side and rear side are the same in length. The washers are installed on the bolt side and the nut side.
  • Page 515 Landing Gear DV 20 E AMM AIRCRAFT Figure 3: Measure Toe-In and Camber Doc # 4.02.25 Page 211 32-10-00 Rev. 2 15 Mar 2022...

  • Page 516: Test/Adjust The Main Landing Gear

    Landing Gear DV 20 E AMM AIRCRAFT 4. Test/Adjust the Main Landing Gear Do this work at the following times: S After a hard landing. S After any repair to the main landing gear which could affect alignment. A. Equipment Item Quantity Part Number...

  • Page 517: Nose Landing Gear

    Landing Gear DV 20 E AMM AIRCRAFT Section 32-20 Nose Landing Gear 1. General This chapter describes the data for the nose landing gear. It gives you the trouble-shooting and maintenance practices. Refer to Chapter 32-40 for data for the nose wheel. 2.
  • Page 518 Landing Gear DV 20 E AMM AIRCRAFT Attachment to Engine Mount Shock Absorber Assembly Bearing Stainless Steel Bush in Fuselage Pivot Nut Pivot Stop Fairing Attachment Screws and Washers Figure 1: Nose Landing Gear Page 2 Doc # 4.02.25 32-20-00 15 Mar 2022 Rev.

  • Page 519: Trouble-Shooting

    Landing Gear DV 20 E AMM AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the nose landing gear. If you find the trouble given in Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column. WARNING: YOU MUST DO A HARD LANDING CHECK AFTER A HARD LANDING.
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  • Page 521: Maintenance Practices

    Landing Gear DV 20 E AMM AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the components of the nose landing gear. Refer to the manufacturer for further data. 2. Remove/Install the Nose Landing Gear A.
  • Page 522 Landing Gear DV 20 E AMM AIRCRAFT Engine Mounting Frame Lock Wire Eye End Rubber Dampers x5 Spacers x5 Center Tube Stainless Steel Bush in Fuselage Bearing Spring Pin Journal Assembly Strut Stud Bushings Rivet Lock Bolt Bearing Retainer Clip Shock Absorber Rivet Retainer...
  • Page 523 Landing Gear DV 20 E AMM AIRCRAFT C. Install the Nose Landing Gear Strut Detail Steps/Work Items Key Items/References WARNING: USE PROPER PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN HANDLING CORROSION PROTECTION AND GREASE. THESE CHEMICALS WHEN MAKE CONTACT MAY IRRITATE OR CAUSE DAMAGE TO SKIN.
  • Page 524 Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Lubrication prior to final installation: S Liberally apply corrosion protection to the Use Type 5 lubricant. Refer to Chapter following items: 12-20. S The inside of the journal assembly. S The shank of the lock bolt.
  • Page 525 Landing Gear DV 20 E AMM AIRCRAFT Figure 3: Lock Bolt Hole Centerline Position Doc # 4.02.25 Page 205 32-20-00 Rev. 2 15 Mar 2022...

  • Page 526: Remove/Install The Nlg Fork Assembly

    Landing Gear DV 20 E AMM AIRCRAFT 3. Remove/Install the NLG Fork Assembly A. Equipment Refer to Chapter 07-10-00 for the equipment required for jacking the airplane. B. Remove the NLG Fork Assembly Detail Steps/Work Items Key Items/References Jack the airplane. Refer to Chapter 07-10.
  • Page 527 Landing Gear DV 20 E AMM AIRCRAFT Figure 5: NLG Fork Installation Doc # 4.02.25 Page 207 32-20-00 Rev. 2 15 Mar 2022...
  • Page 528 Landing Gear DV 20 E AMM AIRCRAFT C. Install the NLG Fork Assembly Detail Steps/Work Items Key Items/References Apply grease to the bearing surfaces of the NLG Use MIL-C-81322 grease. strut axle. Apply CRC Corrosion shell or CRC SP-400 to Do not apply grease to the surfaces.
  • Page 529 Landing Gear DV 20 E AMM AIRCRAFT Figure 6: Adjust the Nose Wheel Steering Friction Doc # 4.02.25 Page 209 32-20-00 Rev. 2 15 Mar 2022...

  • Page 530: Remove/Install The Shock Absorber Assembly

    Landing Gear DV 20 E AMM AIRCRAFT 4. Remove/Install the Shock Absorber Assembly A. Equipment Refer to Chapter 07-10 for the required equipment for jacking the airplane. B. Remove the Shock Absorber Assembly Detail Steps/Work Items Key Items/References Jack the airplane Refer to Chapter 07-10.
  • Page 531 Landing Gear DV 20 E AMM AIRCRAFT C. Install the Shock Absorber Assembly Detail Steps/Work Items Key Items/References WARNING: USE PROPER PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN HANDLING CORROSION PROTECTION AND GREASE. THESE CHEMICALS WHEN MAKE CONTACT MAY IRRITATE OR CAUSE DAMAGE TO SKIN.

  • Page 532: Replace The Shock Absorber Assembly Elements

    Landing Gear DV 20 E AMM AIRCRAFT 5. Replace the Shock Absorber Assembly Elements You must replace cracked rubber damper Detail Steps/Work Items Key Items/References Remove the shock absorber assembly from the Refer to paragraph 4.A and 4.B. airplane. WARNING: DO NOT STAND IN THE LINE OF THE SHOCK ABSORBER ASSEMBLY WHEN YOU REMOVE THE NUT.

  • Page 533: Adjust The Nose Landing Steering Friction

    Landing Gear DV 20 E AMM AIRCRAFT 6. Adjust the Shock Absorber Assembly When new elastomer elements are installed, dimension “a” (see Figure 4) should be 195 mm or 7.7 in with the nose wheel clear of the ground. The preload on used elements is adjusted properly when rubber elements cannot be turned by moderate force of hand while the nose wheel is clear of the ground.

  • Page 534: Nose Wheel Balancing

    Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Apply corrosion protection to the stud, nut and Use CRC SP-400 or CRC Corrosion washers only. shell. Do not contaminate tire or fiberglass. Install the nose-wheel fairing. Remove the trestle from the front fuselage. Remove the airplane from jacks.

  • Page 535: Wheels And Brakes

    Landing Gear DV 20 E AMM AIRCRAFT Section 32-40 Wheels and Brakes 1. General This chapter describes the data for the main and nose wheels and for the brake system. It gives you the trouble-shooting and maintenance practices. 2. Description and Operation A.
  • Page 536 Landing Gear DV 20 E AMM AIRCRAFT (1) Co-Pilot's Brake Operation When you press on the co-pilot's right brake pedal, the following happens: The connection to the reservoir is cut off by the initial movement. Further movement pushes fluid past the piston on the pilot's master cylinder. The fluid flows through the parking brake valve to the right brake caliper.
  • Page 537 Landing Gear DV 20 E AMM AIRCRAFT (3) Parking Brake Operation To apply the parking brake: Press on both pedals. Pull the parking brake knob fully aft. Release your foot pressure on the pedals. If necessary, pump the brake pedals. To release the parking brake, select control too off.
  • Page 538 Landing Gear DV 20 E AMM AIRCRAFT Bolt Washer Brake Disc MAIN WHEEL Snap Ring Seals Bearing Washer Self Locking Nut Axle Nut Bearing Seals Snap Ring Cotter Pin Inner Tube Washer Axle Spacer Shim (Opt) Sealed Bearing Washer Axle Spacer Shim (Opt) Flat Washer Bolt...
  • Page 539 Landing Gear DV 20 E AMM AIRCRAFT Figure 2: Brake System Schematic Doc # 4.02.25 Page 5 32-40-00 Rev. 2 15 Mar 2022...
  • Page 540 Landing Gear DV 20 E AMM AIRCRAFT Figure 3: Brake Master Cylinder and Reservoir Installation Page 6 Doc # 4.02.25 32-40-00 15 Mar 2022 Rev. 2...
  • Page 541 Landing Gear DV 20 E AMM AIRCRAFT Figure 4: Wheel Brake Assembly Doc # 4.02.25 Page 7 32-40-00 Rev. 2 15 Mar 2022...
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  • Page 543: Trouble-Shooting

    Landing Gear DV 20 E AMM AIRCRAFT Trouble-Shooting 1. General If you find the trouble given in Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column. Trouble Possible Cause Repair Too much tire wear. Incorrect toe-in.
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  • Page 545: Maintenance Practices

    Landing Gear DV 20 E AMM AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the components and the conditioning procedure for the brake linings. Refer to the manufacturer maintenance manual (refer to Section 05-00). 2.
  • Page 546 Landing Gear DV 20 E AMM AIRCRAFT C. Install the Main Wheel Detail Steps/Work Items Key Items/References WARNING: MAKE SURE THAT THE AIRPLANE IS SECURE AND STABLE BEFORE BEGINNING ANY WORK. WORKING UNDER AN IMPROPERLY STABILIZED AIRPLANE COULD CAUSE INJURY OR DEATH.
  • Page 547 Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Loosen the axle nut until one of the two holes in Do not loosen the nut more than the axle aligns with the nut. 30 degrees. (Half of a flat). (10) Measure the end play in the hub assembly.

  • Page 548: Remove/Install The Nose Wheel

    Landing Gear DV 20 E AMM AIRCRAFT 3. Remove/Install the Nose Wheel A. Equipment Item Quantity Part Number Padded trestle. Commercial. Weight and strap. Commercial. B. Remove the Nose Wheel Detail Steps/Work Items Key Items/References Remove the wheel fairing: S Remove the six allen screws that attach the left half of the fairing to the right half.
  • Page 549 Landing Gear DV 20 E AMM AIRCRAFT C. Install the Nose Wheel Detail Steps/Work Items Key Items/References WARNING: MAKE SURE THAT THE AIRPLANE IS SECURE AND STABLE BEFORE BEGINNING ANY WORK. WORKING UNDER AN IMPROPERLY STABILIZED AIRPLANE COULD CAUSE INJURY OR DEATH TO PERSONNEL.
  • Page 550 Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References Install the wheel fairing (if applicable): S Put the two halves in position. S Install the LH and RH mounting screws. S Install the screws that hold the fairings. together.

  • Page 551: Remove/Install A Brake Master Cylinder

    Landing Gear DV 20 E AMM AIRCRAFT 4. Remove/Install a Brake Master Cylinder A. Remove a Brake Master Cylinder Detail Steps/Work Items Key Items/References WARNING: DO NOT GET BRAKE FLUID ON YOU. BRAKE FLUID CAN CAUSE DISEASE. CAUTION: CLEAN SPILT BRAKE FLUID IMMEDIATELY.
  • Page 552 Landing Gear DV 20 E AMM AIRCRAFT B. Install a Brake Master Cylinder Detail Steps/Work Items Key Items/References Put the master cylinder in position on the bottom Refer to Figure 3. pivot pin. Attach the master cylinder to the bottom pivot pin: S Install the washer.

  • Page 553: Remove/Install A Brake Caliper

    Landing Gear DV 20 E AMM AIRCRAFT 5. Remove/Install a Brake Caliper A. Remove a Brake Caliper Detail Steps/Work Items Key Items/References Remove the two bolts that hold the back-plate. Remove the back-plate. Cut the lock-wire. WARNING: DO NOT GET BRAKE FLUID ON YOU. BRAKE FLUID CAN CAUSE DISEASE.
  • Page 554 Landing Gear DV 20 E AMM AIRCRAFT Figure 5: Parking Brake Valve Installation Page 210 Doc # 4.02.25 32-40-00 15 Mar 2022 Rev. 2...

  • Page 555: Remove/Install The Parking Brake Valve

    Landing Gear DV 20 E AMM AIRCRAFT 6. Remove/Install the Parking Brake Valve A. Remove the Parking Brake Valve Detail Steps/Work Items Key Items/References Remove the right pilot's seat. Refer to Chapter 25-10-00. Disconnect the bowden cable: Refer to Figure 5. S Loosen the bolt in the end fitting.

  • Page 556: Bleed The Brake System

    Landing Gear DV 20 E AMM AIRCRAFT B. Install the Parking Brake Valve Detail Steps/Work Items Key Items/References Put the parking brake valve in position. Install the nuts, the bolts and the washers that Make sure that the bracket for the attach the parking brake valve.
  • Page 557 Landing Gear DV 20 E AMM AIRCRAFT 7. Bleed the Brake System A. Equipment Item Quantity Part Number Pressure bleed equipment with Aero Shell Fluid 41 Commercial. (MIL-H-5606H) brake fluid. Transparent overflow pipe and container. Commercial. B. Bleeding Procedure Do this procedure for each brake system (left and right) as necessary. Detail Steps/Work Items Key Items/References Clean the area of the brake fluid reservoir cap.

  • Page 558: Condition Of The Brake Linings

    Landing Gear DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (11) Close the bleed nipple. Remove the pressure bleed equipment. (12) Remove the overflow pipe and container. (13) Measure the fluid level in the reservoir. If The correct level is 12 mm (½ in) below necessary, add or remove fluid.

  • Page 559: Wheels And Brakes Cleaning Procedures

    Landing Gear DV 20 E AMM AIRCRAFT 9. Wheels and Brakes Cleaning Procedures Do the following inspection and cleaning procedures of the DV 20 E wheels and brakes. A. Inspection Detail Steps/Work Items Key Items/References Remove the main wheel. Refer to Paragraph 2.B. CAUTION: DO NOT MIX AVIATION WHEEL BEARING GREASES WITH EACH OTHER.
  • Page 560 Landing Gear DV 20 E AMM AIRCRAFT B. Cleaning Detail Steps/Work Items Key Items/References Remove the main wheel. Refer to Paragraph 2.B. CAUTION: DO NOT USE HIGH PRESSURE SPRAY WASH EQUIPMENT. THE USE OF HIGH PRESSURE SPRAY WASH MAY INJECT SOAP SOLUTION AND WATER INTO BEARINGS AND OTHER INTERNAL CAVITIES RESULTING IN CORROSION AND REDUCED SERVICE LIFE.
  • Page 561 DV 20 E AMM Lights AIRCRAFT CHAPTER 33 LIGHTS Doc # 4.02.25 Page 1 33-TITLE Rev. 2 15 Mar 2022...
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  • Page 563 DV 20 E AMM Lights AIRCRAFT TABLE OF CONTENTS CHAPTER 33 LIGHTS General ............1 Description .
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  • Page 565: General

    DV 20 E AMM Lights AIRCRAFT CHAPTER 33 LIGHTS 1. General This chapter describes about the cockpit and exterior lighting on the DV 20 E airplane. Chapter 33-20 describes about the cockpit lighting. Chapter 33-40 describes about the exterior lighting. Refer to Chapter 92 for wiring diagrams for the lighting systems.
  • Page 566 Lights DV 20 E AMM AIRCRAFT The DV 20 E airplane has the following exterior lights in one housing in the leading edge of the left wing: Landing light: The landing light has a clear lens and a 35 Watt bulb. If OÄM 20-271 is installed, the DV 20 E has a LED landing light.

  • Page 567: Cockpit Lighting

    DV 20 E AMM Lights AIRCRAFT Section 33-20 Cockpit Lighting 1. General This chapter describes about the cockpit lighting on the DV 20 E airplane. Refer to Chapter 92 for the cockpit lighting wiring diagrams. 2. Description The DV 20 E airplane cockpit lighting systems: General instrument panel lighting from two lights on the bottom face of the roll bar.
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  • Page 569: Trouble-Shooting

    DV 20 E AMM Lights AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the cockpit lighting systems. If you have the trouble shown in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
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  • Page 571: Maintenance Practices

    DV 20 E AMM Lights AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the general instrument light and map light module. Refer to AMM Chapter 92 for details of the electrical wiring. 2. Remove/Install a Instrument Light/Map Light A.
  • Page 572 Lights DV 20 E AMM AIRCRAFT Figure 1: General Instrument Light/Map Light Adjustment Page 202 33-20-00 Doc # 4.02.25 15 Mar 2022 Rev. 2...

  • Page 573: Exterior Lights

    DV 20 E AMM Lights AIRCRAFT Section 33-40 Exterior Lights 1. General This chapter describes about the exterior lights. 2. Description The DV 20 E airplane has three exterior lights in one light-unit at each wing-tip. It also has landing and taxi lights in a housing in the left wing.
  • Page 574 Lights DV 20 E AMM AIRCRAFT LED Position and In-Line Connector Anti-Collision Light Assy Base Plate Rear Position Light Screw LED’s Forward Position Light Screw LH SHOWN Anti-Collision Light Clear Lens Figure 1: Wing-Tip Light-Unit Page 2 33-40-00 Doc # 4.02.25 15 Mar 2022 Rev.

  • Page 575: Trouble-Shooting

    DV 20 E AMM Lights AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the exterior lighting systems. If you have the trouble shown in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
  • Page 576 Lights DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair Landing light/taxi light not Defective light unit. Replace the light unit. working. Circuit-breaker not set or Set/replace the circuit-breaker. defective. Defective landing or taxiing Replace the switch. light switch. Defective wiring in forward Do a continuity test of the cockpit area.

  • Page 577: Maintenance Practices

    DV 20 E AMM Lights AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to: Remove and install the light units. Adjust the landing light and the taxi light. Remove/install components in the system. Refer to Chapter 92 for details of the electrical wiring. WARNING: DO NOT OPERATE THE ANTI-COLLISION LIGHTS WHEN PERSONS ARE CLOSE TO THE AIRPLANE AND DO NOT LOOK DIRECTLY AT...
  • Page 578 Lights DV 20 E AMM AIRCRAFT Figure 2: Landing and Taxi Light Installation (Sheet 1) Page 202 33-40-00 Doc # 4.02.25 15 Mar 2022 Rev. 2...
  • Page 579 DV 20 E AMM Lights AIRCRAFT Landing Light Mounting Bracket Taxi Light Mounting Bracket LED Landing Light LED Taxi Light Figure 3: Landing and Taxi Light Installation LED Lights (if OÄM 20-271 is installed) Doc # 4.02.25 Page 203 33-40-00 Rev.
  • Page 580 Lights DV 20 E AMM AIRCRAFT B. Install the Taxi Light Detail Steps/Work Items Key Items/References Make sure that the airplane is in the same configuration as in the removal task. Hold the taxi light in position at the leading edge of the left wing.
  • Page 581 DV 20 E AMM Lights AIRCRAFT Figure 4: Landing and Taxi Light Installation (Sheet 2) Doc # 4.02.25 Page 205 33-40-00 Rev. 2 15 Mar 2022...

  • Page 582: Remove/Install The Landing Light

    Lights DV 20 E AMM AIRCRAFT 3. Remove/Install the Landing Light A. Remove the Landing Light Detail Steps/Work Items Key Items/References Set the ELECTRIC MASTER switch to OFF. Open the LANDING circuit breaker. Remove the taxi/landing light cover from the wing.
  • Page 583 DV 20 E AMM Lights AIRCRAFT B. Install the Landing Light Detail Steps/Work Items Key Items/References Make sure that the airplane is in the same configuration as in the removal task. Hold the landing light in position at the leading edge of the left wing.

  • Page 584: Adjust The Position Of The Taxi/Landing Light Beam

    Lights DV 20 E AMM AIRCRAFT 4. Adjust the Position of the Taxi/Landing Light Beam Detail Steps/Work Items Key Items/References Set the ELECTRIC MASTER switch to OFF. Open the LANDING/ TAXI/MAP/ACL circuit- breakers. Remove the taxi/landing light cover from the wing.

  • Page 585: Remove/Install The Light Unit In The Wing Tip

    DV 20 E AMM Lights AIRCRAFT 5. Remove/Install the Light Unit in the Wing Tip A. Remove the Light Unit in the Wing Tip Detail Steps/Work Items Key Items/References Set the ELECTRIC MASTER switch to OFF. Remove the light unit cover from the wing tip. Refer to Figure 1.
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  • Page 587 DV 20 E AMM Navigation AIRCRAFT CHAPTER 34 NAVIGATION Doc # 4.02.25 Page 1 34-TITLE Rev. 2 15 Mar 2022...
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  • Page 589 DV 20 E AMM Navigation AIRCRAFT TABLE OF CONTENTS CHAPTER 34 NAVIGATION General ............1 Description .
  • Page 590 Navigation DV 20 E AMM AIRCRAFT Section 34-30 Landing and Taxiing Aids General ............1 Description and Operation .

  • Page 591: General

    DV 20 E AMM Navigation AIRCRAFT CHAPTER 34 NAVIGATION 1. General The following chapters describe about the navigation systems: Chapter 34-10: Pitot-static and Outside Air Temperature (OAT). Chapter 34-20: Artificial horizon and magnetic compass. Chapter 34-30: Radio navigation instruments for landing such as the marker receiver. Chapter 34-50: Radio navigation instruments that give position data such as the transponder and Global Positioning Systems (GPS).
  • Page 592 Navigation DV 20 E AMM AIRCRAFT B. Attitude and Direction The attitude and direction system has the following components: Magnetic compass. Backup artificial horizon. C. Landing and Taxiing Aids The audio control panel has a marker beacon receiver. D. Dependent Position Determining The dependent position determining system has the following components: VHF radio navigation aids (VOR/LOC).

  • Page 593: General

    DV 20 E AMM Navigation AIRCRAFT Section 34-10 Flight Environment Data 1. General This chapter describes about the pitot-static system and OAT indicating system in the airplane. Refer to the manufacturer's handbook for shop data about an instrument or component. 2.
  • Page 594 Navigation DV 20 E AMM AIRCRAFT Flight Instruments In-Line Connectors Temperature Sensor at Wing Root for the OAT Indicator Pitot Static Probe below the Wing Water Traps below Left Seat Pitot Pipe Static Pipe Figure 1: Flight Environment Data - Component Locations Page 2 Doc # 4.02.25 34-10-00...

  • Page 595: Trouble-Shooting

    DV 20 E AMM Navigation AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the pitot-static and OAT systems. If you find the trouble in column 1, do the repair given in column 3. A. Pitot-Static and OAT Systems Trouble Possible Cause Repair...
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  • Page 597: Maintenance Practices

    DV 20 E AMM Navigation AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove, install and test the flight environment systems. Refer to the manufacturer’s manuals for further data. 2. Remove/Install a Pitot-Static Instrument A. Remove a Pitot-Static Instrument Detail Steps/Work Items Key Items/References Remove the instrument panel cover.

  • Page 598: Remove/Install The Pitot Probe

    Navigation DV 20 E AMM AIRCRAFT 3. Remove/Install the Pitot Probe A. Remove the Pitot Probe Detail Steps/Work Items Key Items/References Remove the attaching screws for the probe from Hold the probe. below the wing. Move the probe down to give access to the connections.

  • Page 599: Pitot And Static Leak Tests

    DV 20 E AMM Navigation AIRCRAFT 4. Pitot and Static Leak Tests Always do a pitot leak-test after you do maintenance on the pitot system. And always do a low-range static leak-test after you do maintenance on the static system. CAUTION: OBEY THE FOLLOWING PRECAUTIONS WHEN YOU DO A PITOT OR STATIC LEAK TEST.
  • Page 600 Navigation DV 20 E AMM AIRCRAFT C. Low Range Static Leak Test Detail Steps/Work Items Key Items/References Obey the precautions at the beginning of this subject. Connect the pitot-static leak-tester to the pitot- static probe. Apply a partial vacuum to the static port until Note the altitude.
  • Page 601 DV 20 E AMM Navigation AIRCRAFT D. Pitot Test Detail Steps/Work Items Key Items/References Obey the precautions at the beginning of this subject. Connect the pitot-static leak-tester to the pitot- static probe. Apply a pressure to the pitot port equal to 150 knots.
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  • Page 603: Attitude And Direction

    DV 20 E AMM Navigation AIRCRAFT Section 34-20 Attitude and Direction 1. General This Section tells you about the attitude and direction systems with the Garmin G500 system installed. The main attitude and direction systems are integral with the Integrated Cockpit System (ICS). Refer to Section 31-40 for more data about the ICS.
  • Page 604 Navigation DV 20 E AMM AIRCRAFT B. Artificial Horizon The Artificial Horizon incorporates a moving display that simulates the earth’s horizon and provides the pilot with a real time visual indication of the airplane pitch and roll attitude relative to the indicator symbolic airplane.
  • Page 605 DV 20 E AMM Navigation AIRCRAFT Trouble-Shooting 1. General Trouble Possible Cause Repair Attitude indicator gyro Power supply wiring defective. Do a test for the correct operation not reliable. voltage at the instrument. Repair the power supply wiring/connector Ground connection defective. Do a test for correct ground connection.
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  • Page 607: Maintenance Practices

    DV 20 E AMM Navigation AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to: Remove and install the magnetic compass Test and adjust the magnetic compass (compass swing) Remove and install the backup artificial horizon indicator Be very careful when you work on or move gyroscopic instruments. Make sure that the gyro stops turning before you start to remove the instrument.

  • Page 608: Test/Adjust The Magnetic Compass

    Navigation DV 20 E AMM AIRCRAFT 3. Test/Adjust the Magnetic Compass You must do a test for correct operation of the compass (compass swing): After replacing a major component. After replacing the compass. After modification to the airplane. CAUTION: USE ONLY NON-MAGNETIC TOOLS TO ADJUST THE COMPASS. CAUTION: DO NOT WEAR OR CARRY METALIC MATERIAL (WATCHES, BRACELETS ETC) WHEN YOU ADJUST THE COMPENSATING...
  • Page 609 DV 20 E AMM Navigation AIRCRAFT B. Compass Swing Detail Steps/Work Items Key Items/References Adjust the compensating magnets in the compass to a neutral position. Start the engine. Set all electrical loads to ON. Refer to the DV 20 E Airplane Flight Manual.

  • Page 610: Remove/Install The Backup Artificial Horizon Indicator

    Navigation DV 20 E AMM AIRCRAFT 4. Remove/Install the Backup Artificial Horizon Indicator A. Remove the Backup Artificial Horizon Indicator Detail Steps/Work Items Key Items/References Disconnect the battery. Refer to Chapter 24-31. Remove the instrument panel cover. Refer to Chapter 25-10. Disconnect the connector 3490-01 from the Artificial Horizon Indicator.

  • Page 611: Landing And Taxiing Aids

    DV 20 E AMM Navigation AIRCRAFT Section 34-30 Landing and Taxiing Aids 1. General The DV 20 E airplane has a Garmin GMA 340 Audio Panel\Marker receiver. Refer to Chapter 23-50 for data about the audio integration functions of the GMA 340. The DV 20 E airplane has also localizer, and glideslope receivers installed.
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  • Page 613: Trouble-Shooting

    DV 20 E AMM Navigation AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the audio marker beacon receiver. If you find the trouble in column 1, do the repair given in column 3. Trouble Possible Cause Repair Test operates correctly but the Faulty marker receiver.
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  • Page 615: Dependent Position Determining

    DV 20 E AMM Navigation AIRCRAFT Section 34-50 Dependent Position Determining 1. General This chapter describes about the equipment that shows dependent position determining. The DV 20 E airplane has the following position determining systems: COM/NAV/GPS - Garmin GTN 650. Transponders - Garmin GTX 328/330.
  • Page 616 Navigation DV 20 E AMM AIRCRAFT A. Garmin GTX 328/330 Transponder (1) Description The Garmin GTX 328/330 is a panel mounted Mode S Transponder. The Garmin GTX 328 retains many of the GTX 330 features such as displaying outside air temperature, altitude monitoring, count up and count down timers (using a built-in digitized voice annunciator to alert the pilot when preset altitude limits have been exceeded or timer expiration), density altitude functions, and front-panel input for flight ID.
  • Page 617 DV 20 E AMM Navigation AIRCRAFT Figure 2: GTX 328/330 Transponder Front Panel The GTX 330 Transponder has the following functional controls: Function Powers off the GTX 330. Pressing the STBY, ON or ALT key powers on the transponder displaying the last active identification code. STBY Selects the standby mode.
  • Page 618 Navigation DV 20 E AMM AIRCRAFT Function IDENT Pressing the IDENT key activates the Special Position Identification (SPI) Pulse for 18 seconds, identifying the transponder return from others on an air traffic controller’s screen. During the IDENT period, the word ‘IDENT’ appears in the upper left corner of the display. Sets the transponder code to the pre-programmed VFR code selected in Configuration mode (set to 7000 at the factory).
  • Page 619 DV 20 E AMM Navigation AIRCRAFT B. GTN 650 The GTN 650 is a VHF communications transceiver and a GPS receiver. (Refer to Chapter 23-10 for COM functions). It also includes VOR/Localizer and glideslope receivers. It uses a Secure Digital (SD) card to load and store various types of data. For basic flight operations, the SD card is required for terrain, obstacle, and safe taxi database storage as well as Jeppesen aviation database updates.
  • Page 620 Navigation DV 20 E AMM AIRCRAFT The GTN 650 has the following controls: (a) Left-Hand Knob Volume / Squelch Knob - controls audio volume for the selected Com radio or Nav receiver and other volume levels for external audio input devices that are controlled via the GTN interface, if installed.

  • Page 621: Trouble Shooting

    DV 20 E AMM Navigation AIRCRAFT Trouble Shooting 1. General This table explains how to troubleshoot the dependent position determining. If you find the trouble in column 1, do the repair given in column 3. A. Transponder Trouble Possible Cause Repair ATC reports no reply.
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  • Page 623: Maintenance Practices

    DV 20 E AMM Navigation AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove, install and adjust/test the components of the dependent position determining systems on the airplane. Refer to the manufacturer’s component maintenance manuals for more data and shop data. 2.
  • Page 624 Navigation DV 20 E AMM AIRCRAFT B. Install the GTX 328/330 Transponder Detail Steps/Work Items Key Items/References Remove the protective covers from the rear Looking at the bottom of the connectors on the unit. transponder, make sure that the front lobe of the locking mechanism is in a vertical position.
  • Page 625 Standard Practices and DV 20 E AMM Structures AIRCRAFT CHAPTER 51 STANDARD PRACTICES AND STRUCTURES Doc # 4.02.25 Page 1 51-TITLE Rev. 2 15 Mar 2022...
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  • Page 627 Standard Practices and DV 20 E AMM Structures AIRCRAFT TABLE OF CONTENTS CHAPTER 51 STANDARD PRACTICES AND STRUCTURE General ............1 Types of Structure .
  • Page 628 Standard Practices and DV 20 E AMM Structures AIRCRAFT Maintenance Practices General ............201 Resin .

  • Page 629: Standard Practices And Structure

    Standard Practices and DV 20 E AMM Structures AIRCRAFT CHAPTER 51 STANDARD PRACTICES AND STRUCTURE 1. General The DV 20 E airplane is a single-engine, low-wing monoplane of composite construction. It has a 'T' tail and a fixed tricycle landing gear with a nose wheel that can caster. The fuselage has a glass fiber skin of semi-monocoque construction with bulkheads and stiffeners.

  • Page 630: Laminated Components

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 3. Laminated Components A laminated component has two or more layers of glass/carbon cloth. The direction of the fibers in the cloth is important for the properties for each layer. Extra layers are bonded to areas to give more strength.

  • Page 631: Identification Of Primary Structure

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 7. Identification of Primary Structure The primary structure of the DV 20 E consists of the following components: A. Wing Spar. Ribs. Web at hinge line. Skin. Wing-fuselage connection. Ailerons. Wing flaps. B.
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  • Page 633: General

    Standard Practices and DV 20 E AMM Structures AIRCRAFT Section 51-10 Investigation 1. General This Section tells you how to assess the class of the damage. It also tells you how to inspect glass fiber reinforced plastic (GFRP) and carbon fiber reinforced plastic (CFRP) composite structures. Damage assessment and repairs must be carried out by approved persons.

  • Page 634: Types Of Damage

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 3. Types of Damage There are two basic types of hidden failure in composite structures: Disbonding. Delamination. Disbonding is the failure of a bond between two components. For example between the fuselage skin and a fuselage frame.

  • Page 635: Further Inspection

    In some cases you must cut inspection holes in the structure to do the test correctly. If you must cut inspection holes you must seek advice from Diamond Aircraft Industries. Doc # 4.02.25...
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  • Page 637: Repair Processes

    Standard Practices and DV 20 E AMM Structures AIRCRAFT Section 51-20 Repair Processes 1. General This Section tells you how to repair composite structures. Repairs must be carried out by approved persons. Refer to Section 51-00 for data about the types of structures. Refer to Section 51-10 for data about the classification of damage and inspection techniques.

  • Page 638: Holding The Component

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 5. Holding the Component You must hold a component in the correct position when you do a repair. If you do not hold a component correctly it may move when you do the repair and cause further damage. It can also change the airplane alignment.

  • Page 639: Workshop Conditions

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 7. Workshop Conditions Keep the workshop clean and free from dust. Remove grinding dust as it occurs. The working area must not be affected by air draughts. The temperature of the workshop should be maintained between 18 °C (65 °F) and 27 °C (77 °F) and must not fall below 15 °C (59 °F).
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  • Page 641: Resin

    Standard Practices and DV 20 E AMM Structures AIRCRAFT Maintenance Practices 1. General These Maintenance Practices tell you about composite repair processes and how to repair Class 2, 3 and 4 damage to the composite structure. Refer to Section 51-10 for data about damage classification.

  • Page 642: Glass And Carbon Cloth

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 3. Glass and Carbon Cloth CAUTION: Epoxy resin cures in an exothermal reaction. Depending on resin/hardener combination, and pot life of the combination, and working temperature the mixture can reach high temperatures. Do not use hot resin. Hot resin can inflame.

  • Page 643: Laminating

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 5. Laminating A prescribed stack of resin impregnated cloth makes a laminate. A laminate which is used to repair an airplane becomes an integral part of the airplane structure once the laminate is hardened and fully cured.
  • Page 644 Standard Practices and DV 20 E AMM Structures AIRCRAFT A. Laminating in Place Detail Steps/Work Items Key Items/References Prepare the damaged area for laminating. Make Refer to the relevant repair procedure in sure that the repair is clean and free this Section.
  • Page 645 Standard Practices and DV 20 E AMM Structures AIRCRAFT B. Laminating on a Table Detail Steps/Work Items Key Items/References Prepare the damaged area for laminating. Make Refer to the relevant repair procedure in sure that the repair is clean and free from this Section.
  • Page 646 Standard Practices and DV 20 E AMM Structures AIRCRAFT Detail Steps/Work Items Key Items/References Apply the first inner layer of cloth to the Make sure that the fibers in the cloth transparent sheet and trim to the correct size. point in the correct direction. Use a roller, squeegee and a stipple brush to remove all trapped air.

  • Page 647: Bonding Paste (Thickened Resin)

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 6. Bonding Paste (Thickened Resin) CAUTION: TO BOND PARTS MADE OR REPAIRED WITH SELF EXTINGUISHING RESIN, YOU MUST USE SELF EXTINGUISHING RESIN TO MIX THE BONDING PASTE (REFER TO SECTION 51-30). Use bonding paste to bond GFRP/CFRP components together and in the repair of sandwich cores.

  • Page 648: Exterior Paint Finish

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 8. Exterior Paint Finish Refer to Chapter 04 for paint scheme limitations. A. Painting a Repair Area Detail Steps/Work Items Key Items/References WARNING: DO NOT GET ACETONE, FILLER, OR PAINT ON YOUR SKIN. ACETONE, FILLER, AND PAINT CAN CAUSE SKIN DISEASE.
  • Page 649 Standard Practices and DV 20 E AMM Structures AIRCRAFT B. Class 4 Repairs The repair of minor scratches, abrasions or similar damage which is not a crack or a puncture in the skin. Detail Steps/Work Items Key Items/References WARNING: DO NOT GET ACETONE ON YOUR SKIN. ACETONE CAN CAUSE SKIN DISEASE.
  • Page 650 Standard Practices and DV 20 E AMM Structures AIRCRAFT Table 2 - Material Specifications WLB No. Manufacturer Material Weave Weight Thick- Scarf and Type per unit ness (German [mm] area Aviation [mm] Standard) [g/m 8.4548.60 Interglas 92110 glass 2/2 twill 0.17 8.4551.60 Interglas 92125...
  • Page 651 Standard Practices and DV 20 E AMM Structures AIRCRAFT C. Class 3 Repairs Small holes or cracks in the outer skin where there is no internal damage to the component, the sandwich material, or the inner skin. Detail Steps/Work Items Key Items/References Make sure that the area around the damage is clean.
  • Page 652 Standard Practices and DV 20 E AMM Structures AIRCRAFT Laminate Foam Core Laminate Remove Damaged /Loose Laminate Scarf Scarf the Edges of the Repair Area New Laminate Repair the Laminate New Laminate Contour the Laminate Figure 1: Typical Class 3 Repair Page 212 Doc # 4.02.25 51-20-00...
  • Page 653 Standard Practices and DV 20 E AMM Structures AIRCRAFT Detail Steps/Work Items Key Items/References WARNING: DO NOT GET RESIN ON YOUR SKIN. RESIN CAN CAUSE SKIN DISEASE. WARNING: DO NOT GET RESINS, HARDENERS OR SOLVENTS IN YOUR MOUTH OR IN YOUR EYES. THESE CHEMICALS CAN CAUSE DISEASE.
  • Page 654 Standard Practices and DV 20 E AMM Structures AIRCRAFT Laminate Foam Core Laminate Remove Damaged/Loose Laminate Scarf Scarf min. 20 mm (0.8 in) min. 20 mm (0.8 in) Remove Damaged Foam Core and Scarf Laminate Foam Insert Laminate Insert the Laminate and Foam Core into the Repair Foam Insert Laminate Profile the Foam Core Insert...
  • Page 655 Standard Practices and DV 20 E AMM Structures AIRCRAFT D. Class 2 Repairs Holes and cracks passing through both skins of a sandwich construction component. The core damage must be able to be covered by a 75 mm (3 in) diameter circle. Detail Steps/Work Items Key Items/References Make sure that the area around the damage is...
  • Page 656 Standard Practices and DV 20 E AMM Structures AIRCRAFT Detail Steps/Work Items Key Items/References WARNING: DO NOT GET RESIN ON YOUR SKIN. RESIN CAN CAUSE SKIN DISEASE. WARNING: DO NOT GET RESINS, HARDENERS OR SOLVENTS IN YOUR MOUTH OR IN YOUR EYES. THESE CHEMICALS CAN CAUSE DISEASE.
  • Page 657 Standard Practices and DV 20 E AMM Structures AIRCRAFT Detail Steps/Work Items Key Items/References (20) When the repair is fully post cured, remove any peel ply and sand smooth the surface of the repair. (21) Contour the repair so that the final surface level Use 150 grit sanding paper.

  • Page 658: Repair Of Fire Retardant Paint

    Standard Practices and DV 20 E AMM Structures AIRCRAFT 9. Repair of Fire Retardant Paint The following maintenance practices describe how to do a repair of fire retardant paint of a cowling and the fuselage bottom aft of the engine. NOTE: If the Fire Retardant Paint of a cowling must be repaired, remove the cowling from the airplane.
  • Page 659 Standard Practices and DV 20 E AMM Structures AIRCRAFT Detail Steps/Work Items Key Items/References Prepare the area(s) for the application of the fire retardant paint, as follows: S If dirt or grease is present, wash the area with clean carbon tetrachloride or acetone. Wipe the area off immediately.
  • Page 660 Standard Practices and DV 20 E AMM Structures AIRCRAFT Detail Steps/Work Items Key Items/References Apply the first coat of fire retardant paint with a For approved materials and suppliers, splatter spray gun, a brush or a roller to a refer to Chapter 51-30. minimum thickness of 250 microns (0.010 in).
  • Page 661 Standard Practices and DV 20 E AMM Structures AIRCRAFT Detail Steps/Work Items Key Items/References (13) Visually inspect the completed paint repair(s). Make sure that there are no defects, such as bubbles, pinholes, craters, chips, scratches or abrasions. Doc # 4.02.25 Page 221 51-20-00 15 Mar 2022...
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  • Page 663: General

    Standard Practices and DV 20 E AMM Structures AIRCRAFT Section 51-30 Materials 1. General You must only use approved materials from approved sources to repair the DV 20 E airplane. Note: If the approved material for the repair work is not available please contact Diamond Aircraft Industries for information about alternative materials.
  • Page 664 Standard Practices and DV 20 E AMM Structures AIRCRAFT B. Glass Fiber Cloth WLB No. Weave Weight per Interglas Type Porcher Type Unit Area (German [g/m²] Aviation Standard) 8.4548.60 2/2 twill 92110 8.4551.60 2/2 twill 92125 3063 8.4554.60 2/2 twill 92140 1989 8.4520.6...
  • Page 665 Standard Practices and DV 20 E AMM Structures AIRCRAFT C. Carbon Fiber Cloth WLB No. Weave Mass per Interglas Cramer Type SGL Type Unit Area Type (German [g/m²] Aviation Standard) 8.3520.80 2/2 twill 98141 CCC 452 Sigratex UD tape KDU 1034 The cloth complies with LN 9169 (German aviation standard).
  • Page 666 Standard Practices and DV 20 E AMM Structures AIRCRAFT D. Peel Ply Type : PA 20-63, compliant with LN 98690 Supplier : Strübel Vertriebs GbR Herrlingerstr. 36/1 D-89081 Ulm, Germany Phone : +49-731-388577-1, -2 : +49-731-9387353 E. Sandwich Core Material Type : PVC rigid foam Divinycell H 60 Thickness...
  • Page 667 Standard Practices and DV 20 E AMM Structures AIRCRAFT (2) Silcell 300 Supplier : Joh. Klinglhuber & Söhne Handelsgesellschaft mbH Wallgasse 21 A-1060 Vienna, Austria Phone : +43-1-5974712-0 : +43-1-5974712-16 (3) Aerosil 380 Supplier : Polychem HandelsgesmbH Markt Allhau Nr. 463 A-7411 Markt Allhau, Austria Phone : +43-3356-20444...
  • Page 668 Standard Practices and DV 20 E AMM Structures AIRCRAFT (2) HS Filler Filler : HS Filler ICI P565-889 Manufacturer : ICI Paints, Berkshire, Great Britain Supplier : ICI Autocolor (see above) (3) Coating Paint (a) Durodur Coating paint : Durodur 3067-R916g; color: RAL 9016 (white) or DB 147 (white) Manufacturer : Morton International GmbH, Strullendorf, Germany Supplier...
  • Page 669 Standard Practices and DV 20 E AMM Structures AIRCRAFT H. Interior Paint (1) Putty Putty : Sikkens Polysoft Manufacturer : Akzo Nobel Supplier : Akzo Nobel Coatings GesmbH (see above) or (b) Putty : ICI P551-1052 Manufacturer : ICI Paints, Berkshire, Great Britain Supplier : ICI Autocolor (see above) (2) Coating Paint...
  • Page 670 Standard Practices and DV 20 E AMM Structures AIRCRAFT I. Fire Retardant Paint (1) Courtaulds Fire retardant paint: Courtaulds Aerospace N 56582/T508 (white) Finishing varnish : Courtaulds Aerospace 4232-0303 Hardener : Courtaulds Aerospace N 39/1327 (4:1) Supplier : PRO-DeSoto Deutschland GmbH Aerospace Coatings Lauenburger Landstr.
  • Page 671 Standard Practices and DV 20 E AMM Structures AIRCRAFT (3) Desothane Fire retardant paint: Desothane HS Buffable Clear Coat 9008B900D Hardener : 9008B or (b) Fire retardant paint: Desothane HS Matt Clear Coat CA8720M0900C Hardener : CA8000B Manufacturer : PPG Aerospace Supplier : PRC-Desoto International Hein-Sass-Weg 29...
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  • Page 673 Standard Practices and DV 20 E AMM Structures AIRCRAFT Section 51-60 Control Surface Balancing 1. General This Section tells you how to weigh and measure the residual moment of the control surfaces. For weights and residual moments refer to Chapter 06. WARNING: YOU MUST WEIGH AND BALANCE A CONTROL SURFACE AFTER ANY WORK WHICH COULD AFFECT ITS WEIGHT OR ITS BALANCE.
  • Page 674 Standard Practices and DV 20 E AMM Structures AIRCRAFT A. Rudder To balance the rudder it must be supported at the top pivot pin and the bottom mounting bracket. The center line of the rudder must be horizontal. Use any suitable method to support the rudder horizontally at the pivot axis. The rudder must be able to rotate freely around the pivot axis.
  • Page 675 Standard Practices and DV 20 E AMM Structures AIRCRAFT B. Elevator Use any suitable method to support the elevator horizontally at the pivot axis. The elevator must be able to rotate freely around the pivot axis. The balance includes the trim tab, trim tab control rod and horn. Figure 2: Elevator Static Balance Doc # 4.02.25 Page 3...
  • Page 676 Standard Practices and DV 20 E AMM Structures AIRCRAFT C. Aileron Use any suitable method to support the aileron horizontally at the pivot axis. The aileron must be able to rotate freely around the pivot axis. The balance includes the horn, trim plate and hinges. Figure 4: Aileron Static Balance Page 4 Doc # 4.02.25...
  • Page 677 Standard Practices and DV 20 E AMM Structures AIRCRAFT D. Flap Use any suitable method to support the wing flap horizontally at the pivot axis. The wing flap must be able to rotate freely around the pivot axis. The balance includes the horn and hinges. The residual moment is tail heavy.
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  • Page 679 DV 20 E AMM Doors AIRCRAFT CHAPTER 52 DOORS Doc # 4.02.25 Page 1 52-TITLE Rev. 2 15 Mar 2022...
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  • Page 681 DV 20 E AMM Doors AIRCRAFT TABLE OF CONTENTS CHAPTER 52 DOORS General ............1 Section 52-10 Canopy General .
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  • Page 683 DV 20 E AMM Doors AIRCRAFT CHAPTER 52 DOORS 1. General The DV 20 E airplane has two types of doors. The canopy which gives access to the cockpit. Access panels which give access to do maintenance. Doc # 4.02.25 Page 1 52-00-00 Rev.
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  • Page 685: General

    DV 20 E AMM Doors AIRCRAFT Section 52-10 Canopy 1. General The DV 20 E airplane has a one-piece lifting canopy. It has a carbon-fiber reinforced plastic (CFRP) frame and one large acrylic glass. The canopy glass has two small emergency windows. The canopy has a hinge at the back and a stabilizing rod on each side.
  • Page 686 Doors DV 20 E AMM AIRCRAFT Figure 1: Canopy Page 2 Doc # 4.02.25 52-10-00 15 Mar 2022 Rev. 2...
  • Page 687 DV 20 E AMM Doors AIRCRAFT C. Canopy Locking A latch mechanism attaches to each side of the canopy. The latches are constructed as follows (Refer to Figure 2): The single steel plate is attached to the canopy frame by four steel screws and separated from the frame by two steel shims and an FRP spacer at each end.
  • Page 688 Doors DV 20 E AMM AIRCRAFT Figure 2 - Canopy Latch Installation Page 4 Doc # 4.02.25 52-10-00 15 Mar 2022 Rev. 2...

  • Page 689: Operation

    DV 20 E AMM Doors AIRCRAFT 3. Operation With the canopy lock set to open, the hook moves forward and disengages the strike bearing. The canopy can move up. You can access the canopy lock grips through the canopy sliding side windows externally.
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  • Page 691: Trouble-Shooting

    DV 20 E AMM Doors AIRCRAFT Trouble-Shooting 1. General This table explains how to troubleshoot the canopy. If you have the trouble detailed in the Trouble column, read across to the Possible Cause column. Then do the repair given in the Repair column. Trouble Possible Cause Repair...
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  • Page 693: Maintenance Practices

    DV 20 E AMM Doors AIRCRAFT Maintenance Practices 1. General The following Maintenance Practices describe how to remove and install the canopy and how to do a canopy latch force test/adjustment. 2. Remove/Install the Canopy CAUTION: TWO PEOPLE WILL BE NEEDED TO REMOVE/INSTALL THE CANOPY. THE CANOPY WILL BE DAMAGED IF YOU DROP IT.

  • Page 694: Canopy Latch Force Test

    Doors DV 20 E AMM AIRCRAFT 3. Canopy Latch Force Test A. Equipment Item Quantity Part Number Strap. Commercial Spring scale. Commercial B. Canopy Latch Force Test Detail Steps/Work Items Key Items/References Close the canopy. Set the ELECTRIC MASTER switch to ON. Make sure the canopy warning light goes off.

  • Page 695: Adjust The Canopy Latch Force

    DV 20 E AMM Doors AIRCRAFT 4. Adjust the Canopy Latch Force Detail Steps/Work Items Key Items/References Release the screws which hold the strike block Refer to Figure 2. assembly to the fuselage. Lower the strike block assembly and install (or Shim, strike, P/N 22-5600-00-15 and remove) shims as necessary to give the correct P/N 22-5600-00-18.

  • Page 696: Remove/Install The Sliding Side Window

    Doors DV 20 E AMM AIRCRAFT 6. Remove/Install the Sliding Side Window A. Remove the Sliding Side Window Detail Steps/Work Items Key Items/References Remove the air scoop lock as follows: Refer to Figure 3. S Remove the screw and the nut. S Remove the two thin washers and a nylon washer.
  • Page 697 DV 20 E AMM Doors AIRCRAFT B. Install the Sliding Side Window Detail Steps/Work Items Key Items/References Assemble the sliding window as follows: Refer to Figure 3. S Install the sliding window knob into the sliding window. S Install the hinge block using two screws. Install the sliding window with the guide rails.
  • Page 698 Doors DV 20 E AMM AIRCRAFT Figure 3: Sliding Window Assembly Page 206 Doc # 4.02.25 52-10-00 15 Mar 2022 Rev. 2...
  • Page 699 DV 20 E AMM Doors AIRCRAFT Section 52-40 Access Panels 1. General The DV 20 E airplane has a small number of access panels. The panels give access for maintenance. Most panels are GFRP moldings. Self-tapping screws or camlock (quick-release) fasteners hold the panels.
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  • Page 701 DV 20 E AMM Fuselage AIRCRAFT CHAPTER 53 FUSELAGE Doc # 4.02.25 Page 1 53-TITLE Rev. 2 15 Mar 2022...
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  • Page 703 DV 20 E AMM Fuselage AIRCRAFT TABLE OF CONTENTS CHAPTER 53 FUSELAGE General ............1 Section 53-10 Fuselage Structure General .
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  • Page 705 DV 20 E AMM Fuselage AIRCRAFT CHAPTER 53 FUSELAGE 1. General The DV 20 E airplane fuselage is a semi-monocoque structure. Two GFRP half-shells make the fuselage skin. GFRP frames and webs give strength and stiffness. Each half shell also makes the vertical stabilizer.
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  • Page 707 DV 20 E AMM Fuselage AIRCRAFT Section 53-10 Fuselage Structure 1. General This Chapter describes the data about the fuselage structure. It also includes the vertical stabilizer. Refer to Chapter 51-00 for data about repair to the structure. The DV 20 E airplane has the following components in the fuselage structure: All of the main structural components are GFRP rigid moldings.
  • Page 708 Fuselage DV 20 E AMM AIRCRAFT Figure 1 - Fuselage Shells and Front Fuselage Structure Page 2 Doc # 4.02.25 53-10-00 15 Mar 2022 Rev. 2...
  • Page 709 DV 20 E AMM Fuselage AIRCRAFT B. Firewall The firewall closes the front of the fuselage. It also holds the attachments for the engine mounting frame. It has holes for the different systems which connect to the engine. The firewall is a rigid GFRP molding. A special adhesive bonds a fire-resistant ceramic blanket to the front face of the firewall.
  • Page 710 Fuselage DV 20 E AMM AIRCRAFT Figure 2 - Front Fuselage Structure Page 4 Doc # 4.02.25 53-10-00 15 Mar 2022 Rev. 2...
  • Page 711 DV 20 E AMM Fuselage AIRCRAFT G. Spar Bridge The spar bridge is a rigid GFRP box-section molding. It has layers of carbon cloth on the top and bottom faces. Each end is a strong web. Carbon cloth gives strength and stiffness to the webs. The webs bond to the spar bridge to the fuselage shells at the root rib area.
  • Page 712 Fuselage DV 20 E AMM AIRCRAFT Figure 3 - Rear Fuselage Structure Page 6 Doc # 4.02.25 53-10-00 15 Mar 2022 Rev. 2...
  • Page 713 DV 20 E AMM Fuselage AIRCRAFT M. Ring-Bulkhead #1 The ring bulkhead #1 is a rigid GFRP molding. It bonds to the fuselage shell just aft of the half bulkhead. It has holes for the elevator control pushrod and the rudder control cables. It has a cutout on the right side for a cable conduit.
  • Page 714 Fuselage DV 20 E AMM AIRCRAFT Figure 4 - Vertical Stabilizer Structure Page 8 Doc # 4.02.25 53-10-00 15 Mar 2022 Rev. 2...
  • Page 715 DV 20 E AMM Fuselage AIRCRAFT S. Vertical Stabilizer Spar The vertical stabilizer spar is a rigid GFRP molding. It bonds to the fuselage shell. It also bonds to the upper and vertical stabilizer lower ribs. The spar has mounting points for these components: The elevator bellcrank.
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  • Page 717 DV 20 E AMM Stabilizers AIRCRAFT CHAPTER 55 STABILIZERS Doc # 4.02.25 Page 1 55-TITLE Rev. 2 15 Mar 2022...
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  • Page 719 DV 20 E AMM Stabilizers AIRCRAFT TABLE OF CONTENTS CHAPTER 55 STABILIZERS General ............1 Section 55-10 Horizontal Stabilizer General .
  • Page 720 Stabilizers DV 20 E AMM AIRCRAFT Maintenance Practices General ............201 Remove/Install the Lower Fin .
  • Page 721 DV 20 E AMM Stabilizers AIRCRAFT CHAPTER 55 STABILIZERS 1. General The DV 20 E airplane has the usual stabilizers. The vertical stabilizer is part of the fuselage. The aft part of the left and right fuselage shells make the left and right shells of the vertical stabilizer. Refer to Chapter 53-10 for data on the fuselage structure.
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  • Page 723 DV 20 E AMM Stabilizers AIRCRAFT Section 55-10 Horizontal Stabilizer 1. General The DV 20 E airplane has the usual horizontal stabilizer. The horizontal stabilizer attaches to the top of the vertical stabilizer. The elevator attaches to the trailing edge of the horizontal stabilizer. Refer to Chapter 55-20 for data about the elevator structure.
  • Page 724 Stabilizers DV 20 E AMM AIRCRAFT Figure 1: Horizontal Stabilizer Structure Page 2 Doc # 4.02.25 55-10-00 15 Mar 2022 Rev. 2...
  • Page 725 DV 20 E AMM Stabilizers AIRCRAFT Maintenance Practices 1. General These Maintenance Practices tell you how to remove and install the horizontal stabilizer. 2. Remove/Install the Horizontal Stabilizer A. Remove the Horizontal Stabilizer Note: Two persons are needed to remove/install the horizontal stabilizer. Detail Steps/Work Items Key Items/References Remove the horizontal stabilizer fairing.
  • Page 726 Stabilizers DV 20 E AMM AIRCRAFT B. Install the Horizontal Stabilizer Detail Steps/Work Items Key Items/References Put the horizontal stabilizer in position on the Use 2 persons. vertical stabilizer. Install the four mounting plate attaching bolts. Torque to 20.6 Nm (15.2 lbf-ft). Install the two bolts that connect the lower Torque to 6.24 Nm (4.6 lbf-ft).
  • Page 727 DV 20 E AMM Stabilizers AIRCRAFT Section 55-20 Elevator 1. General The DV 20 E airplane has the usual elevator. The elevator attaches to the rear web of the horizontal stabilizer. Refer to Chapter 27-30 for data about the elevator controls. 2.
  • Page 728 Stabilizers DV 20 E AMM AIRCRAFT Figure 1: Elevator Structure Page 2 Doc # 4.02.25 55-20-00 15 Mar 2022 Rev. 2...
  • Page 729 DV 20 E AMM Stabilizers AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the elevator. Refer to Chapter 27-30 for adjustment data for the elevator control system. 2. Remove/Install the Elevator A. Remove the Elevator Note: Use 2 persons to remove/install the elevator.
  • Page 730 Stabilizers DV 20 E AMM AIRCRAFT B. Install the Elevator Detail Steps/Work Items Key Items/References Put the elevator in position on the horizontal Use 2 persons. stabilizer. Install the five hinge bolts. There are two bolts outboard at each side and one center bolt through the control horn.
  • Page 731 DV 20 E AMM Stabilizers AIRCRAFT Section 55-30 Lower Fin 1. General The lower fin has three functions. It helps give directional stability. It makes a tail-bumper. It also has a tie-down point. 2. Description Figure 1 shows the lower fin. The lower fin is a rigid GFRP molding. Five screws attach the lower fin to the bottom of the fuselage.
  • Page 732 Stabilizers DV 20 E AMM AIRCRAFT Figure 1: Lower Fin Page 2 Doc # 4.02.25 55-30-00 15 Mar 2022 Rev. 2...
  • Page 733 DV 20 E AMM Stabilizers AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the lower fin. Note: If the lower fin is being replaced and the lower fin contains ballast: Measure weight of old lower fin; Add ballast to new lower fin to get same weight;...
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  • Page 735 DV 20 E AMM Stabilizers AIRCRAFT Section 55-40 Rudder 1. General The DV 20 E airplane has the usual rudder. The rudder attaches to the spar of the vertical stabilizer. Refer to Chapter 27-20 for data about the rudder controls. 2.
  • Page 736 Stabilizers DV 20 E AMM AIRCRAFT Figure 1: Rudder Assembly Page 2 Doc # 4.02.25 55-40-00 15 Mar 2022 Rev. 2...
  • Page 737 DV 20 E AMM Stabilizers AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the rudder. Refer to Chapter 27-30 for adjustment data for the rudder controls. 2. Remove/Install the Rudder A. Remove the Rudder Figure 2 shows the rudder installation.
  • Page 738 Stabilizers DV 20 E AMM AIRCRAFT Figure 2: Rudder Installation Page 202 Doc # 4.02.25 55-40-00 15 Mar 2022 Rev. 2...
  • Page 739 DV 20 E AMM Stabilizers AIRCRAFT B. Install the Rudder Detail Steps/Work Items Key Items/References Put the rudder in position on the vertical Make sure that the top pivot engages stabilizer. the rudder bearing plate. Install the two nuts and washers that attach the Hold the rudder.
  • Page 740 Stabilizers DV 20 E AMM AIRCRAFT B. Install the Top Pivot Bushing Detail Steps/Work Items Key Items/References Clean the surface of the pivot pin. Apply 680 Loctite to the pivot pin. Install the pivot bushing over the pivot pin. Clean all 680 Loctite from the outer bushing surface.
  • Page 741 Windows DV 20 E AMM AIRCRAFT CHAPTER 56 WINDOWS Doc # 4.02.25 Page 1 56-TITLE Rev. 2 15 Mar 2022...
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  • Page 743 Windows DV 20 E AMM AIRCRAFT TABLE OF CONTENTS CHAPTER 56 WINDOWS General ............1 Description .
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  • Page 745 Windows DV 20 E AMM AIRCRAFT CHAPTER 56 WINDOWS 1. General Information on the principal canopy repair is given in this chapter. 2. Description The DV 20 E airplane has a one-piece lifting canopy. It has a carbon-fiber reinforced plastic (CFRP) frame and one large acrylic glass bubble.
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  • Page 747 Windows DV 20 E AMM AIRCRAFT Section 56-10 Repair of the Canopy Glass 1. Damage Limits You must scrap the canopy glass when: The crack is more than 150 mm (6 in) long. There is a crack stop drill hole in the shaded area, as shown in Figure 2. Otherwise you can use the following repair information.
  • Page 748 Windows DV 20 E AMM AIRCRAFT 5. Temporary Repair to the Canopy Glass To prevent further propagation of cracks before a permanent repair is possible, stop-drill the ends of the crack with a 2.4 mm (0.1 in) diameter hole. Figure 1: Temporary Repair 6.
  • Page 749 Windows DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References On the inner surface, seal-off the stop-drill holes with masking tape. Apply filler to the groove and stop-drill holes Refer to Step 2 of Figures 3 and 4. until the filler is proud of the glass surface. Leave the filler to cure.
  • Page 750 Windows DV 20 E AMM AIRCRAFT Dimensions x = 50 mm (2 in) y = 100 mm (4 in) No cracks are permitted in the shaded area. The maximum crack length is 150 mm (6 in). Figure 2: Crack Limits Page 4 Doc # 4.02.25 56-10-00...
  • Page 751 Windows DV 20 E AMM AIRCRAFT Figure 3: Crack Repairs Doc # 4.02.25 Page 5 56-10-00 Rev. 2 15 Mar 2022...
  • Page 752 Windows DV 20 E AMM AIRCRAFT Figure 4: Store-Drill Hole Repair Page 6 Doc # 4.02.25 56-10-00 15 Mar 2022 Rev. 2...
  • Page 753 The rear windows must be replaced when the crack is more than 50 mm (2 in) long and the windows are damaged. Follow the following replacement information or contact the airplane manufacturer, Diamond Aircraft Industries. 2. Tools and Equipment The following tools and equipment are required for the replacement of the rear window: High speed grinder.
  • Page 754 Windows DV 20 E AMM AIRCRAFT 4. Replace a Window Detail Steps/Work Items Key Items/References CAUTION: WEAR MASK AND EYE PROTECTION WHEN GRINDING OUT EXISTING WINDOW. BE CAREFUL NOT TO DAMAGE THE SURROUNDING COMPOSITE STRUCTURE. Tape fuselage around the window with 51 mm (2.0 in) Tape Flash Braker II to protect the fuselage paint from scratches.
  • Page 755 Windows DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (10) Put match marks on the window and fuselage at the front, rear, top and bottom to allow alignment during bonding. (11) Remove all dust and debris from the bonding surfaces.
  • Page 756 Windows DV 20 E AMM AIRCRAFT Detail Steps/Work Items Key Items/References (25) Fill gap between window and fuselage with Remove the excess black sealant with black paintable exterior acrylic caulk (PF224, plastic scraper or spatula. black sealant) (26) Allow the caulk to cure overnight. (27) Remove masking or flash tape.
  • Page 757 DV 20 E AMM Wings AIRCRAFT CHAPTER 57 WINGS Doc # 4.02.25 Page 1 57-TITLE Rev. 2 15 Mar 2022...
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  • Page 759 DV 20 E AMM Wings AIRCRAFT TABLE OF CONTENTS CHAPTER 57 WINGS General ............1 Section 57-10 Wing Structure General .
  • Page 760 Wings DV 20 E AMM AIRCRAFT Maintenance Practices General ............201 Remove/Install the Aileron .
  • Page 761 DV 20 E AMM Wings AIRCRAFT CHAPTER 57 WINGS 1. General The DV 20 E airplane has cantilever wings. The wings are set low on the fuselage. Each wing has a flap inboard on the trailing edge. There is an aileron on the outboard trailing edge. The wings are monocoque structure.
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  • Page 763 DV 20 E AMM Wings AIRCRAFT Section 57-10 Wing Structure 1. General The DV 20 E airplane has composite wings. The main spar has carbon fiber spar-caps. The wing shells have GFRP skins and a rigid foam core. Rigid GFRP moldings give strength to the structure. Some also hold control levers or bearings.
  • Page 764 Wings DV 20 E AMM AIRCRAFT Figure 1: Wing Structure - Shells, Spar, Root Rib and Webs Page 2 Doc # 4.02.25 57-10-00 15 Mar 2022 Rev. 2...
  • Page 765 DV 20 E AMM Wings AIRCRAFT Figure 2: Wing Structure - Ribs Doc # 4.02.25 Page 3 57-10-00 Rev. 2 15 Mar 2022...
  • Page 766 Wings DV 20 E AMM AIRCRAFT B. Spar The wing has an I-beam spar. Carbon fiber rovings make the spar caps. The number of rovings decreases from the root to the tip. The spar has a shear web. The web has GFRP skins and a rigid foam core. Glass cloth fillets attach the spar caps to the shear web.
  • Page 767 DV 20 E AMM Wings AIRCRAFT G. Flap Control Rib The flap control rib is located half way along the aft inner web. It is a rigid GFRP molding with an insert. It has the mounting for the flap control bellcrank. It bonds to the aft face of the spar, the top and bottom shells and the aft inner web.
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  • Page 769 DV 20 E AMM Wings AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to: Remove and install the wings. The procedure is simple. You need no special tools. Remove/Install the wing using 3 persons. Install a wing spar bushing to a new replacement wing. 2.
  • Page 770 Wings DV 20 E AMM AIRCRAFT Figure 3: Wing Attachment Bolts Page 202 Doc # 4.02.25 57-10-00 15 Mar 2022 Rev. 2...
  • Page 771 DV 20 E AMM Wings AIRCRAFT Figure 4: Wing Connections Doc # 4.02.25 Page 203 57-10-00 Rev. 2 15 Mar 2022...
  • Page 772 Wings DV 20 E AMM AIRCRAFT B. Remove the Wings Detail Steps/Work Items Key Items/References Remove the following items for access: S Pilots’ seats. Refer to Chapter 25-10. S Access panels below the fuselage for the Refer to Chapter 52-40. control connections.
  • Page 773 DV 20 E AMM Wings AIRCRAFT Detail Steps/Work Items Key Items/References (13) Disconnect the pitot hose forward of the spar. Left wing only. The hose is 8 mm (5/16 in) diameter. (Green Color) (14) Disconnect the static hose forward of the spar. Left wing only.
  • Page 774 Wings DV 20 E AMM AIRCRAFT C. Install the Wings Detail Steps/Work Items Key Items/References CAUTION: DO NOT GET GREASE ON THE THREADS OF THE B-BOLT. GREASE REDUCES THE FRICTION OF THE SELF-LOCKING NUT. Clean and lubricate the mounting bolts. Refer to Chapter 12-20.
  • Page 775 DV 20 E AMM Wings AIRCRAFT Detail Steps/Work Items Key Items/References (11) Install the spacer and nut on the B-bolt. Torque to 14.8 lbf-ft (20 Nm). (12) Let the trestles hold the weight of the wing(s). (13) Do this procedure again to install the other wing.
  • Page 776 Wings DV 20 E AMM AIRCRAFT 3. Install a Wing Spar Bushing to a New Replacement Wing Detail Steps/Work Items Key Items/References Dry fit the bushing in the wing spar and install Refer to Paragraph 2.C. the wing temporarily. Make sure that there are no fit problems, sweep Refer to Figure 5.
  • Page 777 DV 20 E AMM Wings AIRCRAFT Detail Steps/Work Items Key Items/References (17) Construct an enclosure to trap the heat using high temperature resistant materials or blankets. (18) Use a heat source to heat the ambient air Do not point the heat source directly at around the bushing installation.
  • Page 778 Wings DV 20 E AMM AIRCRAFT Figure 5: Installation of Spar Bushing to a New Replacement Wing (Sweep and Dihedral Tolerances) Page 210 Doc # 4.02.25 57-10-00 15 Mar 2022 Rev. 2...
  • Page 779 DV 20 E AMM Wings AIRCRAFT Section 57-50 Flaps 1. General This chapter describes about the flap structure. Refer to Chapter 27-50 for data about the flap control system. The flap hinge axis is below the wing. The flaps move back as they go down. 2.
  • Page 780 Wings DV 20 E AMM AIRCRAFT Figure 1: Flap Structure Page 2 Doc # 4.02.25 57-50-00 15 Mar 2022 Rev. 2...
  • Page 781 DV 20 E AMM Wings AIRCRAFT Maintenance Practices 1. General These Maintenance Practices tell you how to remove and install the flaps. Refer to Section 27-50 for the flap setting procedure. 2. Remove/Install a Flap A. Remove the Flap Detail Steps/Work Items Key Items/References CAUTION: MAKE SURE THAT THE AREA UNDER THE FLAPS IS CLEAR...
  • Page 782 Wings DV 20 E AMM AIRCRAFT Figure 2: Flap Connections Page 202 Doc # 4.02.25 57-50-00 15 Mar 2022 Rev. 2...
  • Page 783 DV 20 E AMM Wings AIRCRAFT B. Install the Flap Detail Steps/Work Items Key Items/References Put the flap in position on the airplane. Hold the flap. Install the pivot bolts in the hinges and the flap Hold the flap. Make sure that there is a horn.
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  • Page 785 DV 20 E AMM Wings AIRCRAFT Section 57-60 Ailerons 1. General This chapter describes about the aileron structure. Refer to Chapter 27-10 for data about the aileron control system. The aileron hinge axis is near the lower wing stern. 2. Description Each aileron has the following components: A.
  • Page 786 Wings DV 20 E AMM AIRCRAFT Figure 1: Aileron Structure Page 2 Doc # 4.02.25 57-60-00 15 Mar 2022 Rev. 2...
  • Page 787 DV 20 E AMM Wings AIRCRAFT Maintenance Practices 1. General The following maintenance practices describe how to remove and install the ailerons. Refer to Chapter 27-10 for data on adjusting the aileron controls. 2. Remove/Install the Aileron A. Remove the Aileron Detail Steps/Work Items Key Items/References Remove the bolt which attaches the control rod...
  • Page 788 Wings DV 20 E AMM AIRCRAFT Figure 2: Aileron Installation Page 202 Doc # 4.02.25 57-60-00 15 Mar 2022 Rev. 2...
  • Page 789 DV 20 E AMM Propeller AIRCRAFT CHAPTER 61 PROPELLER Page 1 Doc # 4.02.25 61-TITLE Rev. 2 15 Mar 2022...
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  • Page 791 DV 20 E AMM Propeller AIRCRAFT TABLE OF CONTENTS CHAPTER 61 PROPELLER General ............1 Section 61-10 Propeller Assembly General .
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  • Page 793 DV 20 E AMM Propeller AIRCRAFT CHAPTER 61 PROPELLER 1. General This Chapter describes the propeller installation of the DV 20 E. For more data on the propeller refer to the propeller manufacturer’s manuals. Note: Equipment which is certified for installation in the DV 20 E is listed in Section 6.5 of the Airplane Flight Manual.
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  • Page 795 DV 20 E AMM Propeller AIRCRAFT Section 61-10 Propeller Assembly 1. General The DV 20 E airplane has a mt-propeller MTV-21-A/175-05 hydraulically regulated 2-blade constant speed propeller installed. The propeller has wood composite blades with fiber-reinforced plastic coating and stainless steel edge cladding; in the region of the propeller hub the leading edge is coated with adhesive PU foil.
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  • Page 797 DV 20 E AMM Propeller AIRCRAFT Trouble-Shooting 1. General The table below lists the defects you could have for the propeller. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair in the Repair column.
  • Page 798 Propeller DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair Surging RPM. Trapped air in propeller Move propeller speed lever at least twice piston. before flight at about 4000 RPM with a drop of about 1000 RPM. Oil sludge in system. Contact repair station to clean oil lines in engine, cylinder, propeller and governor.
  • Page 799 DV 20 E AMM Propeller AIRCRAFT Trouble Possible Cause Repair Increasing RPM Oil leakage which is visible Replace seals. during normal outside. operation without movement of Pitch change due to leakage Contact engine repair station. propeller speed in internal oil system Oil transfer rings on propeller shaft may be control lever.
  • Page 800 Propeller DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair Oil leakage (may Defective seals. Replace. either be visible from outside or not). Page 104 Doc # 4.02.25 61-10-00 15 Mar 2022 Rev. 2...
  • Page 801 DV 20 E AMM Propeller AIRCRAFT Maintenance Practices 1. Install the Propeller Detail Steps/Work Items Key Items/References NOTE: Propeller installation may only be done by authorized personnel and must be checked immediately after completion. Any maintenance must be performed in accordance with the propeller manufacturer’s documentation.
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  • Page 803 DV 20 E AMM Power Plant AIRCRAFT CHAPTER 71 POWER PLANT Doc # 4.02.25 Page 1 71-TITLE Rev. 2 15 Mar 2022...
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  • Page 805 DV 20 E AMM Power Plant AIRCRAFT TABLE OF CONTENTS CHAPTER 71 POWER PLANT General ............1 Description .
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  • Page 807 DV 20 E AMM Power Plant AIRCRAFT CHAPTER 71 POWER PLANT 1. General This Chapter contains information about the Rotax 912 iSc3 Sport engine installation in the DV 20 E. Refer to the DV 20 E Airplane Flight Manual for engine start/stop procedures. Refer to these Chapters for data about other engine systems: Chapter 76.
  • Page 808 Power Plant DV 20 E AMM AIRCRAFT 2. Description The DV 20 E has a Rotax 912 iSc3 Sport engine installed, which has the following specifications: Four cylinder, four-stroke engine with dry sump forced lubrication. Horizontally opposed construction. Fuel injection system. Propeller speed reducing gear 1:2.43.
  • Page 809 DV 20 E AMM Power Plant AIRCRAFT Trouble-Shooting 1. General The table below lists the defects you could have with the power plant. It does not give trouble shooting data for the engine or the engine systems. Refer to the Operation Manual, latest revision for engine and engine system trouble-shooting.
  • Page 810 Power Plant DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair Insufficient compression. Check for loss of pressure; carry out repair if necessary. Engine damage. Inspect oil tank for metal particles; in case of presence, engine overhaul might be required. Engine idles unsteadily after Intake manifold leaky.
  • Page 811 DV 20 E AMM Power Plant AIRCRAFT Trouble Possible Cause Repair Engine runs too hot, oil Too much oil remaining in Check oil return line for temperature exceeds 140° C. crankcase. clogging; check engine for gas mixture leakage. Insufficient air stream to oil Check for free air passage;...
  • Page 812 Power Plant DV 20 E AMM AIRCRAFT Trouble Possible Cause Repair Low oil pressure. Insufficient oil level. Check oil level, replenish if required. Oil remains in engine and does Check oil return line for not return to tank. clogging. Defective oil seal. Replace.
  • Page 813 DV 20 E AMM Power Plant AIRCRAFT Trouble Possible Cause Repair Knocking under load. Octane rating of fuel too low. Use fuel with higher Octane rating. Spark plugs installed without Ensure that there is one sealing ring. sealing ring on each spark plug.
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  • Page 815 DV 20 E AMM Power Plant AIRCRAFT Maintenance Practices 1. Remove/Install the Engine A. Remove the Engine Note: In many cases it is better to remove the engine together with the engine mount from the firewall. The following is a description of such task. Warning: Before removing the engine, disconnect the battery.
  • Page 816 Power Plant DV 20 E AMM AIRCRAFT B. Install Engine For installation of the engine reverse the engine removal sequence. Page 202 Doc # 4.02.25 71-00-00 15 Mar 2022 Rev. 2...
  • Page 817 DV 20 E AMM Power Plant AIRCRAFT Section 71-10 Cowling 1. General The engine cowling consists of two halves, with two inspection covers located on the upper half allowing access to the oil dipstick and the coolant equalizing reservoir. The covers are attached to the cowling by hinges and secured by rotary locks.
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  • Page 819 DV 20 E AMM Power Plant AIRCRAFT Maintenance Practices 1. Remove/Install the Cowlings A. Remove the Cowlings Detail Steps/Work Items Key Items/References WARNING: MAKE SURE THAT THE ENGINE IS SAFE BEFORE YOU DO ANY WORK ON THE PROPELLER. IF THE ENGINE IS TURNED, THE PROPELLER CAN CAUSE INJURY OR DEATH.
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  • Page 821 DV 20 E AMM Power Plant AIRCRAFT Section 71-20 Engine Mount 1. General The engine is mounted to the airframe via the engine mount and the shock mounts. The mount consists of a welded steel tube frame which is mounted to the firewall using bolts and self locking nuts. The bolts must be re-torqued at the intervals specified in Chapter 5.
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  • Page 823 DV 20 E AMM Power Plant AIRCRAFT Maintenance Practices 1. Remove/Install the Engine Mount A. Remove the Engine Mount Detail Steps/Work Items Key Items/References Remove bolts holding the engine mount. Remove engine mount from firewall. B. Install the Engine Mount For installation of the engine mount reverse the removal sequence.
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  • Page 825 DV 20 E AMM Power Plant AIRCRAFT Section 71-60 Air Intakes and Guides 1. General A ram air guide made of GFRP is installed on the engine to ensure optimal engine cooling. 2. Description The air guide is designed to follow the contours of the engine block and cylinders. The exact fitting makes attachment screws unnecessary.
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  • Page 827 DV 20 E AMM Liquid Cooling System AIRCRAFT CHAPTER 75 LIQUID COOLING SYSTEM Doc # 4.02.25 Page 1 75-TITLE Rev. 2 15 Mar 2022...
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  • Page 829 DV 20 E AMM Liquid Cooling System AIRCRAFT TABLE OF CONTENTS CHAPTER 75 LIQUID COOLING SYSTEM General ............1 Maintenance Practices General .
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  • Page 831 DV 20 E AMM Liquid Cooling System AIRCRAFT CHAPTER 75 LIQUID COOLING SYSTEM 1. General This Section describes the liquid cooling system for the DV 20 E airplane. The Rotax 912 iSc3 Sport features liquid cooling of the cylinder heads and ram air cooling of the cylinders. The cooling system of the cylinder heads is a closed circuit with a dispatcher vessel (expansion tank) on top of the engine and an equalizing reservoir (overflow bottle).
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  • Page 833 DV 20 E AMM Liquid Cooling System AIRCRAFT Maintenance Practices 1. General This Section describes the Maintenance Practices for the components in the liquid cooling system. 2. Remove and Install the Coolant Tank Detail Steps/Work Items Key Items/References Remove all hoses, connected to coolant tank.
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  • Page 835 DV 20 E AMM Engine Controls AIRCRAFT CHAPTER 76 ENGINE CONTROLS Doc # 4.02.25 Page 1 76-TITLE Rev. 2 15 Mar 2022...
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  • Page 837 DV 20 E AMM Engine Controls AIRCRAFT TABLE OF CONTENTS CHAPTER 76 ENGINE CONTROLS General ............1 Engine Controls .
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  • Page 839 DV 20 E AMM Engine Controls AIRCRAFT CHAPTER 76 ENGINE CONTROLS 1. General This Section describes the DV 20 E engine power controls. The primary engine controls are the throttle lever and the propeller speed lever. Bowden cables are used for the transmission of control movements. The bowden cables are sealed with fire resistant compound where they pass through the fire wall.
  • Page 840 Engine Controls DV 20 E AMM AIRCRAFT The engine can only be cranked with its ENGINE MASTER switched to ON. When activated, the ENGINE MASTER provides the power supply for the main fuel pump and the ECU. To shut down the engine the ENGINE MASTER is switched to OFF.
  • Page 841 DV 20 E AMM Engine Controls AIRCRAFT 3. Electrical Engine Control Unit / ECU A. Engine Control and Regulation The electrical ECU controls the fuel injectors and ignition system according to the engine sensor information. The ECU monitors, controls and regulates all important parameters for engine operation.
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  • Page 843 DV 20 E AMM Engine Controls AIRCRAFT Trouble-Shooting 1. General The table below lists the defects you could have with the engine control system. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
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  • Page 845 DV 20 E AMM Engine Controls AIRCRAFT Maintenance Practices 1. Remove and Install an Throttle Control Bowden Cable Detail/Steps/ Work Items Key Items/References Remove engine cowlings. Remove throttle quadrant. Disconnect bowden cable clamps on the throttle valve. Disconnect bowden cable clamps on shift lever below instrument panel.
  • Page 846 Engine Controls DV 20 E AMM AIRCRAFT 2. Adjustment of Throttle Control Bowden Cable Make sure that the throttle valve touches the stops with the throttle lever in IDLE and FULL position. 3. Remove and Install an Alternate Air Bowden Cable Detail/Steps/ Work Items Key Items/References Remove engine cowlings.
  • Page 847 DV 20 E AMM Engine Controls AIRCRAFT 5. Remove and Install a Propeller Speed Control Bowden Cable Detail/Steps/ Work Items Key Items/References Remove engine cowlings. Disconnect bowden cable from propeller governor. Remove the throttle quadrant cover. Disconnect bowden cable from propeller speed control lever.
  • Page 848 Engine Controls DV 20 E AMM AIRCRAFT 7. Remove and Install the Throttle Quadrant Friction Control Detail/Steps/ Work Items Key Items/References Remove rotary knob on RH side of center console. Remove washer springs and replace if required. For Installation reverse the sequence. Figure 4: Throttle Quadrant Page 204 Doc # 4.02.25...
  • Page 849 DV 20 E AMM Engine Indicating AIRCRAFT CHAPTER 77 ENGINE INDICATING Doc # 4.02.25 Page 1 77-TITLE Rev. 2 15 Mar 2022...
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  • Page 851 DV 20 E AMM Engine Indicating AIRCRAFT TABLE OF CONTENTS CHAPTER 77 ENGINE INDICATING General ............1 Engine Instruments .
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  • Page 853 DV 20 E AMM Engine Indicating AIRCRAFT CHAPTER 77 ENGINE INDICATING 1. General This Section tells you about the engine indicating system for the DV 20 E airplane. 2. Engine Instruments The engine instruments are displayed on the EMU 912 iS evo and a separate fuel quantity gauge. In addition the LANE A/B FAIL lights are located next to the LANE SELECTOR switch.
  • Page 854 Engine Indicating DV 20 E AMM AIRCRAFT B. Engine Instrument EMU 912 iS evo Figure 1: EMU Display - Main Page The EMU displays all flight relevant engine parameters on the MAIN page. Engine parameters with operating limitations and caution ranges that are displayed as alphanumeric values are color-coded with green, amber and red.
  • Page 855 DV 20 E AMM Engine Indicating AIRCRAFT Designation Indication Unit Engine RPM 1/min Manifold pressure inHG Oil pressure Oil temperature °C Exhaust gas temperature °C Coolant temperature °C Fuel pressure FUEL Fuel consumption rate ECU voltage Manifold air temperature °C MODE Engine operation mode POWER/ECO...
  • Page 856 Engine Indicating DV 20 E AMM AIRCRAFT Figure 2: EMU Display - INFO Page Return to main page Page down Page Up ZERO Reset drag indicators Page 4 Doc # 4.02.25 77-00-00 15 Mar 2022 Rev. 2...
  • Page 857 DV 20 E AMM Exhaust AIRCRAFT CHAPTER 78 EXHAUST Doc # 4.02.25 Page 1 78-TITLE Rev. 2 15 Mar 2022...
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  • Page 859 DV 20 E AMM Exhaust AIRCRAFT TABLE OF CONTENTS CHAPTER 78 EXHAUST General ............1 Description .
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  • Page 861: General

    DV 20 E AMM Exhaust AIRCRAFT CHAPTER 78 EXHAUST 1. General Each of the engine cylinders is equipped with an own exhaust pipe leading to the muffler below the engine. To enable heat expansion of the exhaust system, the connections between muffler and pipes are moveable and secured with two springs each.
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  • Page 863: Trouble-Shooting

    DV 20 E AMM Exhaust AIRCRAFT Trouble-Shooting 1. General The table below lists the defects you could have with the exhaust system. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
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  • Page 865: Maintenance Practices

    DV 20 E AMM Exhaust AIRCRAFT Maintenance Practices 1. General This Maintenance Practice describes how to remove and install an engine exhaust pipe. Refer to Section 81-00 for data about the turbo-chargers. 2. Remove/Install the Exhaust System WARNING: MAKE SURE THAT THE EXHAUST SYSTEM IS COOL BEFORE YOU TOUCH IT.

  • Page 866: Inspection Of Exhaust System

    Exhaust DV 20 E AMM AIRCRAFT 3. Inspection of Exhaust System The inspection can be performed without removal of exhaust system components. To perform this test, loosen the mounting screws of the hose connection on the heat exchanger and inspect the muffler for cracks and corrosion.
  • Page 867 DV 20 E AMM Oil Cooling AIRCRAFT CHAPTER 79 OIL COOLING Doc # 4.02.25 Page 1 79-TITLE Rev. 2 15 Mar 2022...
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  • Page 869 DV 20 E AMM Oil Cooling AIRCRAFT TABLE OF CONTENTS CHAPTER 79 OIL COOLING General ............1 Description .
  • Page 870 Oil Cooling DV 20 E AMM AIRCRAFT Intentionally left blank Page 2 Doc # 4.02.25 79-CONTENTS 15 Mar 2022 Rev. 2...
  • Page 871 DV 20 E AMM Oil Cooling AIRCRAFT CHAPTER 79 OIL COOLING 1. General The Rotax 912 iSc3 Sport engine is fitted with a dry sump forced lubrication system with an oil pump and integrated pressure regulator. 2. Description The Rotax 912 iSc3 Sport has a dry sump lubrication system. The camshaft driven oil pump has an integrated oil pressure regulator and oil pressure sensor.
  • Page 872 Oil Cooling DV 20 E AMM AIRCRAFT 1 Pressure regulator 4 Oil cooler 2 Oil pump 5 Oil filter 3 Oil tank 6 Venting tube Figure 1: Oil System Page 2 Doc # 4.02.25 79-00-00 15 Mar 2022 Rev. 2...
  • Page 873 DV 20 E AMM Oil Cooling AIRCRAFT SECTION 79-21 OIL RADIATOR 1. General The oil radiator is located on the lower right hand side of the engine, and is attached to the engine mount. The oil radiator has two threaded connection sleeves to which the oil lines are attached. The sleeves are also used to secure the radiator to the engine mount.
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  • Page 875 DV 20 E AMM Oil Cooling AIRCRAFT Trouble-Shooting 1. General The table below lists the possible defects with the oil cooling system. If you have the trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair given in the Repair column.
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  • Page 877 DV 20 E AMM Oil Cooling AIRCRAFT Maintenance Practices 1. Remove and Install an Oil Radiator Refer to Figure 2. Detail Steps/Work Item Key Items/References Disconnect hose lines from radiator ports. Straighten locking plates on hose connectors. Remove mounting nuts. Remove oil radiator.
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  • Page 879 Wiring Diagrams DV 20 E AMM AIRCRAFT CHAPTER 92 WIRING DIAGRAMS Doc # 4.02.25 Page 1 92-TITLE Rev. 2 15 Mar 2022...
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  • Page 881 Wiring Diagrams DV 20 E AMM AIRCRAFT TABLE OF CONTENTS CHAPTER 92 WIRING DIAGRAMS General ..........1 Doc # 4.02.25 Page 1 92-CONTENTS...
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  • Page 883 Wiring Diagrams DV 20 E AMM AIRCRAFT CHAPTER 92 WIRING DIAGRAMS 1. General This Chapter contains the wiring diagrams for each system. The wiring diagrams use the ATA Chapter/Section numbering system. Title Drawing No. Rev. No. of Sheets Schematic, Rotax 912iS Wiring D21-9224-30-01_01 Schematic, Rotax 912iS Wiring D21-9224-30-02...
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  • Page 903 MAIN BUS...

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