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Hartzell HC-D2MV20-3 Owner's Manual And Logbook

Hydro-selective propellers with aluminum blades
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Manual No. 140
61-00-40
Revision 5
April 2023
Propeller Owner's Manual
Hydro-Selective Propellers with Aluminum Blades
Hartzell Propeller Inc.
One Propeller Place
Piqua, OH 45356-2634 U.S.A.
Ph: 937-778-4200 (Hartzell Propeller Inc.)
Ph: 937-778-4379 (Product Support)
Product Support Fax: 937-778-4215
and Logbook
Series: HC-D2(MV,V)20-3
HC-D3(MV,V)20-6L
HC-D2(MV,V)20-7( )
HC-D2(MV,V)20-8( )
HC-D3MV20-8D

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Summary of Contents for Hartzell HC-D2MV20-3

  • Page 1 Propeller Owner's Manual and Logbook Series: HC-D2(MV,V)20-3 HC-D3(MV,V)20-6L HC-D2(MV,V)20-7( ) HC-D2(MV,V)20-8( ) HC-D3MV20-8D Hydro-Selective Propellers with Aluminum Blades Hartzell Propeller Inc. One Propeller Place Piqua, OH 45356-2634 U.S.A. Ph: 937-778-4200 (Hartzell Propeller Inc.) Ph: 937-778-4379 (Product Support) Product Support Fax: 937-778-4215...
  • Page 2 HARTZELL PROPELLER OWNER'S MANUAL HARTZELL PROPELLER OWNER'S MANUAL © 2002, 2011, 2012, 2014, 2021, 2023 - Hartzell Propeller Inc. - All rights reserved Inside Cover 61-00-40 COVER Rev. 5 Apr/23...
  • Page 3 Manual. Please give it your attention, especially the section dealing with Inspections and Checks. Thank you for choosing a Hartzell propeller. Properly maintained it will give you many years of reliable service. Joe Brown Chairman, Hartzell Propeller Inc.
  • Page 4 HARTZELL PROPELLER OWNER'S MANUAL WARNING (Rev. 3) People who fly should recognize that various types of risks are involved; and they should take all precautions to minimize them, since they cannot be eliminated entirely. The propeller is a vital component of the aircraft. A...
  • Page 5 Failure could be as severe as loss of propeller or propeller blades and cause loss of propeller control and/or loss of aircraft control. Hartzell Propeller Inc. follows FAA regulations for propeller certification on certificated aircraft. Experimental aircraft may operate with unapproved engines or propellers or...
  • Page 6 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 4 61-00-40 MESSAGE Rev. 5 Apr/23...
  • Page 7 Revision 5, dated April 2023, incorporates the following: Front matter (Cover, Revision Highlights, etc.), has been revised to match this revision. Updated the Hartzell Propeller Inc. logo on the cover and revised the header on all pages. Minor language/format changes and renumbering are marked with a revision bar but not listed in this section.
  • Page 8 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 2 61-00-40 REVISION HIGHLIGHTS Rev. 5 Apr/23...
  • Page 9 HARTZELL PROPELLER OWNER'S MANUAL REVISION 5 HIGHLIGHTS 1. Introduction A. General (1) This is a list of current revisions that have been issued against this manual. Please compare it to the RECORD OF REVISIONS page to make sure that all revisions have been added to the manual.
  • Page 10 HARTZELL PROPELLER OWNER'S MANUAL Revision No. Issue Date Comments Original Nov/02 New Issue Revision 1 May/11 Minor Revision Revision 2 Jun/12 Minor Revision Revision 3 Feb/14 Minor Revision Revision 4 Mar/21 Major Revision Revision 5 Apr/23 Major Revision Page 4...
  • Page 11 HARTZELL PROPELLER OWNER'S MANUAL RECORD OF REVISIONS This is a record of revisions inserted into this manual. Revision 5 includes all prior revisions. Revision Number Issue Date Date Inserted Inserted By Apr/23 Apr/23 Page 1 61-00-40 Rev. 5 Apr/23 RECORD OF REVISIONS...
  • Page 12 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 2 61-00-40 RECORD OF REVISIONS Rev. 5 Apr/23...
  • Page 13 HARTZELL PROPELLER OWNER'S MANUAL RECORD OF TEMPORARY REVISIONS Issue Date Inserted Date Removed Date Inserted Removed TR-001 Nov/03 Nov/03 May/11 TR-002 Feb/06 Feb/06 May/11 Page 1 61-00-40 RECORD OF TEMPORARY REVISIONS Rev. 5 Apr/23...
  • Page 14 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 2 61-00-40 RECORD OF TEMPORARY REVISIONS Rev. 5 Apr/23...
  • Page 15 HARTZELL PROPELLER OWNER'S MANUAL SERVICE DOCUMENTS LIST CAUTION 1: DO NOT USE OBSOLETE OR OUTDATED INFORMATION. PERFORM ALL INSPECTIONS OR WORK IN ACCORDANCE WITH THE MOST RECENT REVISION OF A SERVICE DOCUMENT. INFORMATION CONTAINED IN A SERVICE DOCUMENT MAY BE SIGNIFICANTLY CHANGED FROM EARLIER REVISIONS.
  • Page 16 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 2 61-00-40 SERVICE DOCUMENTS LIST Rev. 5 Apr/23...
  • Page 17 HARTZELL PROPELLER OWNER'S MANUAL AIRWORTHINESS LIMITATIONS The Airworthiness Limitations section is FAA approved and specifies maintenance required under 14 CFR §§ 43.16 and 91.403 of the Federal Aviation Regulations unless an alternative program has been FAA approved. FAA APPROVED date:...
  • Page 18 2. The following data summarizes all current information concerning Hartzell life limited parts, as related to propeller models affected by this manual. These parts are not life limited on other installations; however, time accumulated toward life limit accrues...
  • Page 19 HARTZELL PROPELLER OWNER'S MANUAL LIST OF EFFECTIVE PAGES Chapter Page Revision Date Cover/Inside Cover Cover/Inside Cover Rev. 5 Apr/23 Message 1 thru 4 Rev. 5 Apr/23 Revision Highlights 1 thru 4 Rev. 5 Apr/23 Record of Revisions 1 and 2 Rev.
  • Page 20 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 2 61-00-40 LIST OF EFFECTIVE PAGES Rev. 5 Apr/23...

  • Page 21: Table Of Contents

    HARTZELL PROPELLER OWNER'S MANUAL TABLE OF CONTENTS MESSAGE ..................1 REVISION HIGHLIGHTS ..............1 RECORD OF REVISIONS .............. 1 RECORD OF TEMPORARY REVISIONS ........1 SERVICE DOCUMENTS LIST ............1 AIRWORTHINESS LIMITATIONS ..........1 LIST OF EFFECTIVE PAGES ............1 TABLE OF CONTENTS ..............
  • Page 22 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 2 61-00-40 TABLE OF CONTENTS Rev. 5 Apr/23...

  • Page 23: Introduction

    A. Propeller Stress Levels ............1-6 B. Engine Modifications ............1-6 3. Restrictions and Placards ............1-7 4. Reference Publications ............1-7 A. Hartzell Propeller Inc. Publications ........1-7 B. Vendor Publications ............1-8 5. Personnel Requirements ............1-9 6. Special Tooling and Consumable Materials ......1-10 A.
  • Page 24 HARTZELL PROPELLER OWNER'S MANUAL INTRODUCTION - CONTENTS, continued 13. Hartzell Propeller Inc. Contact Information ......1-18 A. Product Support Department ........... 1-18 B. Technical Publications Department ........1-19 C. Recommended Facilities ..........1-19 14. Definitions ................1-20 15. Abbreviations ............... 1-30...

  • Page 25: General

    (a) Additional manuals are available that include overhaul procedures and specifications for the propeller. (3) This manual may include multiple design types. (a) Parentheses shown in the propeller model designations in this or other Hartzell Propeller Inc. publications indicate letter(s) and/or number(s) that may or may not be present because of different configurations permitted on the various aircraft installations.

  • Page 26: Maintenance Practices

    (5) Observe applicable torque values during maintenance. (6) Before installing the propeller on the engine, the propeller must be statically balanced. New propellers are statically balanced at Hartzell Propeller Inc. Overhauled propellers must be statically balanced by a certified propeller repair station with the appropriate rating before return to service.
  • Page 27 (11) If the propeller is equipped with an ice protection system that uses components supplied by Hartzell Propeller Inc., applicable instructions and technical information for the components can be found in Hartzell Propeller Inc. Ice Protection System Manual 180 (30-61-80). (12) Propeller ice protection system components not supplied by Hartzell Propeller Inc.

  • Page 28: Airframe Or Engine Modifications

    HARTZELL PROPELLER OWNER'S MANUAL 2. Airframe or Engine Modifications (Rev. 1) A. Propeller Stress Levels (1) Propellers are approved vibrationwise on airframe and engine combinations based on tests or analysis of similar installations. This data has demonstrated that propeller stress levels are affected by airframe configuration, airspeed, weight, power, engine configuration, and approved flight maneuvers. Aircraft modifications that can effect propeller stress include, but are not limited to:...

  • Page 29: Restrictions And Placards

    (TCDS), Pilot Operating Handbook (POH), and any applicable Airworthiness Directives for specific information. 4. Reference Publications A. Hartzell Propeller Inc. Publications (1) Information published in Service Bulletins, Service Letters, Service Advisories, and Service Instructions may supersede information published in this manual. The...

  • Page 30: Vendor Publications

    HARTZELL PROPELLER OWNER'S MANUAL Manual No. Available at Hartzell Propeller Inc. (ATA No.) www.hartzellprop.com Manual Title Active Hartzell Propeller Inc. Service Bulletins, Service Letters, Service Instructions, and Service Advisories Manual 100E Hydro-Selective Propeller (61-10-00) Overhaul Manual Manual 127 Metal Spinner...

  • Page 31: Personnel Requirements

    Federal Aviation Administration (FAA) or international equivalent is mandatory for anyone performing or accepting responsibility for the inspection and/or repair of any Hartzell Propeller Inc. product. (a) Maintenance records must be kept in accordance with the requirements established by the Federal Aviation Administration (FAA) or international equivalent.

  • Page 32: Special Tooling And Consumable Materials

    A. Special Tooling (1) Special tooling may be required for procedures in this manual. For further tooling information, refer to Hartzell Propeller Inc. Illustrated Tool and Equipment Manual 165A (61-00-65). (a) Tooling reference numbers appear with the prefix “TE” directly following the tool name to which they apply.

  • Page 33: Calendar Limits And Long Term Storage

    B. Long Term Storage (1) Propellers that have been in storage have additional inspection requirements before installation. Refer to the Packaging and Storage chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). Page 1-11 61-00-40 INTRODUCTION Rev. 5 Apr/23...

  • Page 34: Component Life And Overhaul

    Time Since New (TSN) be maintained for all life limited parts. (b) Refer to the Airworthiness Limitations chapter in the applicable Hartzell Propeller Inc. Owner’s Manual for a list of life limited components. (4) When a component or assembly undergoes an overhaul, the TSO is returned to zero hours.
  • Page 35 Propeller assembly serial numbers are impression stamped on the hub. For stamping information, refer to the Parts Identification and Marking chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). The TSN and TSO of the replacement hub must be recorded and maintained in the propeller logbook.

  • Page 36: Overhaul

    (1) Overhaul is the periodic disassembly, cleaning, inspecting, repairing as necessary, reassembling, and testing in accordance with approved standards and technical data approved by Hartzell Propeller Inc. (2) The overhaul interval is based on hours of service, i.e., flight time, or on calendar time.

  • Page 37: Damage/Repair Types

    HARTZELL PROPELLER OWNER'S MANUAL 10. Damage/Repair Types (Rev. 1) A. Airworthy/Unairworthy Damage (1) Airworthy damage is a specific condition to a propeller component that is within the airworthy damage limits specified in the applicable Hartzell Propeller Inc. component maintenance manual. (a) Airworthy damage does not affect the safety or flight characteristics of the propeller and conforms to its type design. (b) Airworthy damage does not require repair before further flight, but should be repaired as soon as possible to prevent degradation of the damage.

  • Page 38: Minor/Major Repair

    Factory Training Certificate from Hartzell Propeller Inc. The repair station must meet facility, tooling, and personnel requirements and is required to participate in Hartzell Propeller Inc. Sample Programs as defined in the Approved Facilities chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). Page 1-16...

  • Page 39: Propeller Critical Parts

    Hartzell Propeller Inc. Product Support Department to request a Warranty Application form. Complete this form and return it to Hartzell Product Support for evaluation before proceeding with repair or inspection work. Upon receipt of this form, the Hartzell Product Support Department will provide instructions on how to proceed.

  • Page 40: Hartzell Propeller Inc. Contact Information

    HARTZELL PROPELLER OWNER'S MANUAL 13. Hartzell Propeller Inc. Contact Information (Rev. 2) A. Product Support Department (1) Contact the Product Support Department of Hartzell Propeller Inc. about any maintenance problems or to request information not included in this publication. NOTE:...

  • Page 41: Technical Publications Department

    HARTZELL PROPELLER OWNER'S MANUAL B. Technical Publications Department (1) For Hartzell Propeller Inc. service literature and revisions, contact: Hartzell Propeller Inc. Telephone: 937.778.4200 Attn: Technical Publications Department Fax: 937.778.4215 One Propeller Place E-mail: manuals@hartzellprop.com Piqua, Ohio 45356-2634 U.S.A. C. Recommended Facilities (1) Hartzell Propeller Inc.

  • Page 42: Definitions

    HARTZELL PROPELLER OWNER'S MANUAL 14. Definitions (Rev. 4) A basic understanding of the following terms will assist in maintaining and operating Hartzell Propeller Inc. propeller systems. Term Definition Annealed Softening of material due to overexposure to heat Aviation Certified Intended for FAA or international equivalent type certificated aircraft applications. A TC...
  • Page 43 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Blade Centerline An imaginary reference line through the length of a blade around which the blade rotates Blade Station Refers to a location on an individual blade for blade inspection purposes. It is a measurement from the blade “zero”...
  • Page 44 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Composite Material Kevlar , carbon, or fiberglass fibers bound ® together with, or encapsulated within an epoxy resin Compression A process that provides improved strength Rolling and resistance to fatigue Constant Force A force that is always present in some...
  • Page 45 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Corrosion Product A white or dull gray powdery material that (Aluminum) has an increased volume appearance (compared to non-corroded aluminum). Corrosion product is not to be confused with damage left in the base aluminum such as pits, worm holes, and etched surface finish.
  • Page 46 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Depression Surface area where the material has been compressed but not removed Distortion Alteration of the original shape or size of a component Edge Alignment Distance from the blade centerline to the leading edge of the blade...
  • Page 47 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Gouge Surface area where material has been removed Hazardous Propeller The hazardous propeller effects are defined Effect in Title 14 CFR section 35.15(g)(1) Horizontal Balance Balance between the blade tip and the center of the hub Impact Damage Damage that occurs when the propeller...
  • Page 48 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Monocoque A type of construction in which the outer skin carries all or a major part of the load Nick Removal of paint and possibly a small amount of material Non-Aviation Intended for non-aircraft application, such as...
  • Page 49 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Overspeed Condition in which the RPM of the propeller or engine exceeds predetermined maximum limits; the condition in which the engine (propeller) RPM is higher than the RPM selected by the pilot through the propeller...
  • Page 50 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Scratch Same as “Nick” Short Circuit Connection of low resistance between points on a circuit between which the resistance is normally much greater Shot Peening Process where steel shot is impinged on a surface to create compressive surface...
  • Page 51 HARTZELL PROPELLER OWNER'S MANUAL Term Definition Trailing Edge The aft edge of an airfoil over which the air passes last Trimline Factory terminology referring to where the part was trimmed to length Underspeed The condition in which the actual engine...

  • Page 52: Abbreviations

    HARTZELL PROPELLER OWNER'S MANUAL 15. Abbreviations (Rev. 2) Abbreviation Term Airworthiness Directives Aircraft Maintenance Manual Aircraft on Ground As Required Air Transport Association Constant Speed Unit Federal Aviation Administration Flight Hour Flight Manual Flight Manual Supplement Ft-Lb Foot-Pound Human Machine Interface...
  • Page 53 HARTZELL PROPELLER OWNER'S MANUAL Abbreviation Term MIL-X-XXX Military Specification Major Periodic Inspection (Overhaul) Military Standard MSDS Material Safety Data Sheet Newtons Not Applicable National Aerospace Standards NASM National Aerospace Standards, Military Nondestructive Testing NIST National Institute of Standards and Technology N•m...
  • Page 54 HARTZELL PROPELLER OWNER'S MANUAL Abbreviation Term Society of Automotive Engineers Supplemental Type Certificate Time Between Overhaul Type Certificate Time Since Inspection Time Since New Time Since Overhaul Unique Identification Wing-In-Ground-Effect Page 1-32 61-00-40 INTRODUCTION Rev. 5 Apr/23...

  • Page 55: Description And Operation

    HARTZELL PROPELLER OWNER'S MANUAL DESCRIPTION and OPERATION - CONTENTS 1. Description of Propeller and Systems ........2-3 A. Construction ............... 2-3 B. Forces ................2-5 C. Control ................2-6 D. Propeller Model HC-D2(MV,V)20-3( ) ........ 2-9 E. Propeller Model HC-D3(MV,V)20-6( ) ......2-11 F.
  • Page 56 HARTZELL PROPELLER OWNER'S MANUAL FIGURES Steel Hub ..........Figure 2-1 ....2-4 HC-D2(MV,V)20-3 Propeller Assembly ... Figure 2-2 ....2-8 HC-D3(MV,V)20-6( ) Propeller Assembly ..........Figure 2-3 ....2-10 HC-D2(MV,V)20-(7,8)( ) Propeller Assembly ......... Figure 2-4 ....2-12 HC-D3MV20-8D Propeller Assembly..Figure 2-5 ....2-14 Governor in Onspeed Condition .....

  • Page 57: Description Of Propeller And Systems

    Feathering is not possible with these propellers. (4) The Hartzell Hydro-Selective propeller that uses manual control consists primarily of a propeller assembly, a hydraulic unit, and a valve assembly. The constant...

  • Page 58: Steel Hub

    HARTZELL PROPELLER OWNER'S MANUAL (5) A manually controlled propeller assembly consists of a central steel hub (Figure 2-1) that mounts on the engine splined shaft. Blades are attached to the hub and are retained by two piece blade clamps and thrust bearing assemblies.

  • Page 59: Forces

    HARTZELL PROPELLER OWNER'S MANUAL (6) A governor control propeller is constructed and configured as described for the manually controlled propeller assembly with the following additions. Many engines on which a governed propeller is mounted are not designed with an accessory drive pad for attachment of a governor.

  • Page 60: Control

    HARTZELL PROPELLER OWNER'S MANUAL C. Control (1) The summation of the propeller forces is toward higher pitch (low RPM) and is opposed by a variable force toward lower pitch (high RPM). The variable force is oil controlled from a governor or is engine oil that is pilot controlled through a valve.
  • Page 61 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 2-7 61-00-40 DESCRIPTION AND OPERATION Rev. 5 Apr/23...

  • Page 62: Hc-D2(Mv,V)20-3 Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL HC-D2(MV,V)20-3 Propeller Assembly Figure 2-2 Page 2-8 61-00-40 DESCRIPTION AND OPERATION Rev. 5 Apr/23...

  • Page 63: Propeller Model Hc-D2(Mv,V)20-3( )

    HARTZELL PROPELLER OWNER'S MANUAL D. Propeller Model HC-D2(MV,V)20-3( ). Refer to Figure 2-2. (1) This propeller model uses manual control and is reversing. The basic components of this propeller assembly consist of a propeller, a hydraulic unit, and a valve assembly.

  • Page 64: Hc-D3(Mv,V)20-6( ) Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL HC-D3(MV,V)20-6( ) Propeller Assembly Figure 2-3 Page 2-10 61-00-40 DESCRIPTION AND OPERATION Rev. 5 Apr/23...

  • Page 65: Propeller Model Hc-D3(Mv,V)20-6( )

    HARTZELL PROPELLER OWNER'S MANUAL E. Propeller Model HC-D3(MV,V)20-6( ). Refer to Figure 2-3. (1) This propeller model uses manual control and is reversing. The basic components of this propeller assembly consist of a propeller, a hydraulic unit, and a valve assembly.

  • Page 66: Hc-D2(Mv,V)20-(7,8)( )

    HARTZELL PROPELLER OWNER'S MANUAL HC-D2(MV,V)20-(7,8)( ) Propeller Assembly Figure 2-4 Page 2-12 61-00-40 DESCRIPTION AND OPERATION Rev. 5 Apr/23...

  • Page 67: Propeller Models Hc-D2(Mv,V)20-7( ) And Hc-D2(Mv,V)20- 8( )

    HARTZELL PROPELLER OWNER'S MANUAL F. Propeller Models HC-D2(MV,V)20-7( ) and HC-D2(MV,V)20- 8( ). Refer to Figure 2-4. (1) These propeller models may be controlled either manually or by a governor and are always non-reversing. If governing, the basic components consist of a propeller, a hydraulic unit, a valve assembly, a governor, and a T-drive unit.

  • Page 68: Hc-D3Mv20-8D Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL HC-D3MV20-8D Propeller Assembly Figure 2-5 Page 2-14 61-00-40 DESCRIPTION AND OPERATION Rev. 5 Apr/23...

  • Page 69: Propeller Model Hc-D3Mv20-8D

    HARTZELL PROPELLER OWNER'S MANUAL G. Propeller Model HC-D3MV20-8D. Refer to Figure 2-5. (1) This propeller model uses manual control and is non-reversing. The basic components of this propeller assembly consist of a propeller, hydraulic unit, and valve assembly. (2) This propeller model series is capable of approximately 14 degrees of blade angle range and uses a diaphragm to seal between the piston and the cylinder.

  • Page 70: Propeller Model Designations

    HARTZELL PROPELLER OWNER'S MANUAL HC - D 3 V 20 - 6 L L - LEFT HAND ROTATION - 8.875 " (22.54 CM) DIAMETER CYLINDER, 4.65" (11.81 CM) LONG COUNTERWEIGHTS; USES 91-3E HYDRAULIC UNIT - 91-6L HYDRAULIC UNIT - USES 91-7DS HYDRAULIC UNIT; 93-A, B, C VALVE SPECIFIC DE- ASSEMBLY - NON GOVERNING;...

  • Page 71: Propeller Model Designation

    HARTZELL PROPELLER OWNER'S MANUAL H. Propeller Model Designation (1) Hartzell Propeller Inc. uses a model number designation system to identify specific propeller and blade assemblies. The propeller model number and blade model number are separated by a slash ( / ).

  • Page 72: Aluminum Blade Model Designation

    HARTZELL PROPELLER OWNER'S MANUAL prop model/MV8433N-6 Dash Number (or + number), diameter reduction (or increase) from basic design. In this example, the nominal 84 inch diameter has been reduced 6 inches = 78 inch dia. (with some exceptions) there may be a letter following the dash number:...

  • Page 73: Propeller Blades

    (a) Refer to the section, "Blade Model Designation" in this chapter. B. Blade Model Designation (1) Hartzell Propeller Inc. uses a model number designation system to identify specific propeller and blade assemblies. The propeller model number and blade model number are separated by a slash ( / ).

  • Page 74: Governor In Onspeed Condition

    HARTZELL PROPELLER OWNER'S MANUAL Pilot Control Speeder Spring Flyweights Pilot Valve Governor in Onspeed Condition Figure 2-6 Pilot Control Speeder Spring Flyweights Pilot Valve Governor in Underspeed Condition Figure 2-7 Pilot Control Speeder Spring Flyweights Pilot Valve Governor in Overspeed Condition...

  • Page 75: Governors

    HARTZELL PROPELLER OWNER'S MANUAL 3. Governors (Rev. 2) A. Theory of Operation (1) A governor is an engine RPM sensing device and high pressure oil pump. In a constant speed propeller system, the governor responds to a change in engine RPM by directing oil under pressure to the propeller hydraulic cylinder or by releasing oil from the hydraulic cylinder.

  • Page 76: Governor Model Designation

    HARTZELL PROPELLER OWNER'S MANUAL B. Governor Model Designation (1) Hartzell Propeller Inc. uses a model number designation system to identify specific governor models. (2) The governor model number is stamped on the base and/or body of the governor assembly. (3) Refer to Table 2-3 for a description of the characters used in the governor model number.

  • Page 77: Pilot Operating Instructions

    HARTZELL PROPELLER OWNER'S MANUAL 4. Pilot Operating Instructions A. Non-governing (Hydroselective Propeller) (1) Push the propeller pitch control forward to increase RPM and pull the propeller pitch control back to decrease RPM. (a) The blade pitch will follow the propeller pitch control command precisely and the propeller RPM will reflect the movement immediately.
  • Page 78 HARTZELL PROPELLER OWNER'S MANUAL (8) Long Range Cruise (a) Maximum cruise economy dictates low airspeed, low RPM and fairly high manifold pressure. (b) For these conditions the pitch must be high. Obtain the higher pitch and lower RPM with the pitch...
  • Page 79 HARTZELL PROPELLER OWNER'S MANUAL CAUTION: NEVER LET THE ENGINE OVERSPEED IN REVERSE. ALWAYS MAINTAIN AN RPM BELOW THE MAXIMUM ENGINE RPM. When the control is completely back, the blade pitch is in full reverse and the pilot can apply throttle for reverse thrust.

  • Page 80: Governing (Constant Speed Operation)

    HARTZELL PROPELLER OWNER'S MANUAL B. Governing (Constant Speed Operation) (1) Push the governor RPM control forward to increase RPM and pull it back to decrease RPM. (a) The governor will follow the command precisely and RPM will change immediately. (2) If flight speed or throttle is changed the RPM will remain constant.

  • Page 81: Installation And Removal

    HARTZELL PROPELLER OWNER'S MANUAL INSTALLATION AND REMOVAL - CONTENTS 1. Tools, Consumables, and Expendables ......... 3-3 A. General ................3-3 B. Tooling ................3-3 C. Consumables ..............3-3 D. Expendables ..............3-3 2. Pre-Installation ................ 3-4 A. Inspection of Shipping Package ......... 3-4 B.
  • Page 82 HARTZELL PROPELLER OWNER'S MANUAL LIST OF FIGURES Calculating Torque When Using a Torque Wrench Adapter ..... Figure 3-1 ....3-7 Spinner Adapter Ring ......Figure 3-2 ....3-10 Valve Assembly: For HC-D2(MV,V)20-3 ....... Figure 3-3 ....3-12 Reverse Pitch Hardware Adjustment ..Figure 3-4 ....3-20 Modification of Shaft Gear Adapter (Continental P/N 40722) ....

  • Page 83: Tools, Consumables, And Expendables

    B. Tooling 20 Spline • Safety wire pliers (Alternate: Safety cable tool) • Torque wrench • Torque wrench adapter (Hartzell Propeller Inc. P/N BST-2910) C. Consumables • Quick Dry Stoddard Solvent or Methyl-Ethyl-Keytone (MEK) D. Expendables • 0.032 inch (0.813 mm) Stainless Steel Aircraft Safety Wire (Alternate: 0.032 inch [0.81 mm] aircraft safety cable, and...

  • Page 84: Pre-Installation

    (blade tips) may indicate that the propeller was dropped during shipment, possibly damaging the blades. If the propeller is damaged, contact Hartzell Propeller Inc. Refer to the section, “Hartzell Propeller Inc. Contact Information” in the Introduction chapter of this manual.

  • Page 85: Propeller Mounting Hardware And Torque Information

    HARTZELL PROPELLER OWNER'S MANUAL 3. Propeller Mounting Hardware and Torque Information (Rev. 1) A. Propeller Mounting Hardware (1) Refer to Table 3-1 for part numbers of the propeller mounting hardware and O-rings. Part Part No. Usage Hydraulic Unit Gasket A-181...
  • Page 86 HARTZELL PROPELLER OWNER'S MANUAL CAUTION 1: FOR A PROPELLER THAT DOES NOT USE A LUBRICATED (WET) TORQUE, THE MOUNTING HARDWARE MUST BE CLEAN AND DRY TO PREVENT EXCESSIVE PRELOAD OF THE MOUNTING FLANGE. CAUTION 2: TORQUE VALUES WITH “WET” NOTED...
  • Page 87 HARTZELL PROPELLER OWNER'S MANUAL Torquing Adaptor Standard Torque Wrench 1.00 foot 0.75 foot (304.8 mm) (228.6 mm) (actual torque required) X (torque wrench length) Torque wrench reading (torque wrench length) + (length of adapter) to achieve required actual torque EXAMPLE: reading on torque 100 Ft-Lb (136 N•m) x 1 ft (308.4 mm)

  • Page 88: Torque Information

    HARTZELL PROPELLER OWNER'S MANUAL B. Torque Information (1) The structural integrity of joints in the propeller that are held together with threaded fasteners is dependent upon proper torque application. (a) Vibration can cause an incorrectly tightened fastener to fail in a matter of minutes.
  • Page 89 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 3-9 61-00-40 INSTALLATION AND REMOVAL Rev. 5 Apr/23...

  • Page 90: Spinner Adapter Ring Installation (If Applicable)

    HARTZELL PROPELLER OWNER'S MANUAL 4. Spinner Adapter Ring Installation (if applicable) A. Installation (1) Install the spinner adapter ring to the starter ring gear using hardware supplied by the airframe manufacturer. Refer to Figure 3-2. CAUTION: BOLTS INSTALLED INCORRECTLY CAN DAMAGE ENGINE COMPONENTS.

  • Page 91: Propeller Assembly Installation

    Hartzell Propeller’s control. In addition to propeller installation procedures, items such as rigging and preflight testing of flight idle blade angle, and propeller synchronization devices are normally found in the airframe manufacturer’s manuals.
  • Page 92 HARTZELL PROPELLER OWNER'S MANUAL Drain Engine Pressure Valve Assembly: For HC-D2(MV,V)20-3 Figure 3-3 Page 3-12 61-00-40 INSTALLATION AND REMOVAL Rev. 5 Apr/23...

  • Page 93: Installing The Hc-D2(Mv,V)20-3 Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL C. Installing the HC-D2(MV,V)20-3 Propeller Assembly CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS...
  • Page 94 HARTZELL PROPELLER OWNER'S MANUAL Locate the valve spool midway between the cotter pin and the base of the guide pin. (e) Attach the propeller pitch control cable to the hydraulic valve lever on the long end that extends from the valve spool.
  • Page 95 HARTZELL PROPELLER OWNER'S MANUAL CAUTION 1: CHECK THE HEIGHT OF THE STUDS ABOVE THE INSIDE SURFACE OF THE CYLINDER. THE HEIGHT OF THE STUDS MUST NOT EXCEED 0.532 INCH (13.51 MM), OR THE PISTON TRAVEL MAY BE LIMITED AND MAY RESTRICT BLADE ANGLE TRAVEL.
  • Page 96 HARTZELL PROPELLER OWNER'S MANUAL CAUTION: DO NOT DAMAGE THE PISTON O-RINGS WHEN INSTALLING THE PISTON INTO THE CYLINDER. (k) Install the jack plate unit and piston assembly into the cylinder. Use a rubber mallet as necessary to bottom the piston in the cylinder.
  • Page 97 HARTZELL PROPELLER OWNER'S MANUAL CAUTION 1: USE THE MARKINGS MADE DURING BENCH ASSEMBLY TO MATCH THE FORKS, BLOCKS, AND LINKSCREWS THAT WERE PREVIOUSLY MATED. CAUTION 2: MAINTAIN THE SAME BLOCK ORIENTATION THAT WAS ESTABLISHED DURING BENCH ASSEMBLY AND ADJUSTMENT. (s) Install a pitch change block on each link screw.
  • Page 98 HARTZELL PROPELLER OWNER'S MANUAL (aa) Check the available piston travel by measuring between the jack plate and the hub shoulder. Travel should be 1.062 inch to 1.094 inch (26.97 to 27.79 mm). 2 If the distance is not sufficient, remove the propeller and install additional shims or remove shims between the rear cone and engine, to obtain the desired travel capability.
  • Page 99 HARTZELL PROPELLER OWNER'S MANUAL (4) Adjusting Propeller Control For Proper Ground Or Static CAUTION: A CALIBRATED TACHOMETER MUST BE USED TO MAKE SURE OF THE ACCURACY OF THE RPM CHECK. (a) Determine Static RPM Start the engine and allow it to warm up.
  • Page 100 HARTZELL PROPELLER OWNER'S MANUAL (5) Reverse Pitch Hardware Adjustment CAUTION: REVERSING CONTROL MUST PULL THE SHORT END OF THE VALVE LEVER TIGHT AGAINST THE BRACKET. REFER TO FIGURE 3-4. (a) Adjust the lever Loosen the clamp that holds the push-pull reverse control housing.
  • Page 101 HARTZELL PROPELLER OWNER'S MANUAL (b) Secure the reverse control housing CAUTION: MAINTAIN A MINIMUM CLEARANCE OF 0.12 INCH (3.2 MM) BETWEEN THE JACK PLATE AND THE HUB SHOULDER TO PREVENT EXCESSIVE LOADING OF THE THRUST BEARINGS IN THE PROPELLER AND ENGINE.
  • Page 102 HARTZELL PROPELLER OWNER'S MANUAL (c) Twist the counterweights toward high pitch to move the push rods and sleeve toward the engine are far as they will travel. (d) Loosen and unthread the hub nut from the engine shaft. NOTE: This will pull the propeller away from the engine and allow the push rods to slide out of the guide lugs on the hub.
  • Page 103 HARTZELL PROPELLER OWNER'S MANUAL (9) Model HC-D2MV20-3 only: (a) Rotate the blades by hand toward low pitch until the jack plate contacts the spacer ring. 1 Confirm that there is a minimum of 0.025 inch (0.63 mm) clearance between each clamp and the valve. (b) If there is insufficient clearance between the clamps and the valve, measure the gap to determine how much clearance is needed.
  • Page 104 HARTZELL PROPELLER OWNER'S MANUAL (f) If the high pitch blade angle is less than 19.5 degrees, follow steps (9)(f)1 through (9)(f)4, to remove the propeller and install additional spacer(s) to achieve the desired high pitch blade angle. Remove the propeller in accordance with the removal instructions in this chapter.

  • Page 105: Installing The Hc-D3(Mv,V)20-6L Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL D. Installing the HC-D3(MV,V)20-6L Propeller Assembly CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS...
  • Page 106 HARTZELL PROPELLER OWNER'S MANUAL (d) Install the gasket flush against the engine case. (e) Align the six cylinder mounting holes with the six mounting studs that protrude from the engine case. (f) Position the cylinder flush against the previously installed gasket. CAUTION 1: CHECK THE HEIGHT OF THE STUDS ABOVE THE INSIDE SURFACE OF THE CYLINDER. THE HEIGHT OF THE STUDS MUST NOT EXCEED 0.532 INCH (13.51 MM), OR...
  • Page 107 HARTZELL PROPELLER OWNER'S MANUAL CAUTION: DO NOT DAMAGE THE PISTON O-RINGS WHEN INSTALLING THE PISTON INTO THE CYLINDER. (k) Install the jack plate unit and piston assembly into the cylinder. Bottom the piston in the cylinder. (l) Install one sleeve on each push rod, with the shoulder against the fork.
  • Page 108 HARTZELL PROPELLER OWNER'S MANUAL (t) Grip the blade counterweight on each blade clamp, and, at the same time, rotate the blades to high pitch until the push rods that protrude from the jack plate unit stop short of the three bushings in the guide collar near the hub nut.
  • Page 109 HARTZELL PROPELLER OWNER'S MANUAL (af) Check the available piston travel by measuring between the jack plate and the hub shoulder. Travel should be 1.032 inch (26.21 mm) minimum. 2 If the distance is not sufficient, remove the propeller and install additional shims between the rear cone and the engine to obtain the desired travel capability.
  • Page 110 HARTZELL PROPELLER OWNER'S MANUAL (d) With the cockpit reverse pitch control cable forward, but just short of the locked position, connect the other end of the cable to the propeller hydraulic valve lever on the short end that extends from the valve spool.
  • Page 111 HARTZELL PROPELLER OWNER'S MANUAL (b) Static RPM Incorrect Low pitch adjustment has been made at the factory, according to published information. The readjustment of low pitch should not be required. Refer to the Static RPM Adjustment section in the Maintenance Practices Chapter of this manual for adjustment information.
  • Page 112 HARTZELL PROPELLER OWNER'S MANUAL CAUTION: MAINTAIN A MINIMUM CLEARANCE OF 0.12 INCH (3.2 MM) BETWEEN THE JACK PLATE AND THE HUB SHOULDER TO PREVENT EXCESSIVE LOADING OF THE THRUST BEARINGS IN THE PROPELLER AND ENGINE (c) Make sure there is a minimum 0.12 inch (3.2 mm) clearance between the jack plate and the hub shoulder when in full reverse.
  • Page 113 HARTZELL PROPELLER OWNER'S MANUAL (f) Allow the jack assembly push rods to completely slide out of the guide collar. (g) Turn the jack plate unit until the pitch change forks disengage from the pitch change blocks. (h) Install the reverse stop with the new dimension thickness onto hub.
  • Page 114 HARTZELL PROPELLER OWNER'S MANUAL Page 3-34 61-00-40 INSTALLATION AND REMOVAL Rev. 5 Apr/23...
  • Page 115 HARTZELL PROPELLER OWNER'S MANUAL Page 3-35 61-00-40 INSTALLATION AND REMOVAL Rev. 5 Apr/23...
  • Page 116 HARTZELL PROPELLER OWNER'S MANUAL B-6656-6 Ball Joint Vernier Control B-3851-0463 Washers (2) B-3808-4 Nut A-199 Link A-121 Linkscrew B-3851-0463 Washers (2) B-3808-4 Nut AN742D7C Clamp (2) B-3840-10 Screw (2) B-3851-0332 Washers (2) B-3808-3 Nuts (2) Governor B-3808-5 Nut (4) B-3851-0563...

  • Page 117: Installation Of Governor And "T" Drive

    HARTZELL PROPELLER OWNER'S MANUAL E. Installation of Governor and “T” Drive (on -7 and -8 Series Propellers Only). Refer to Figures 3-5 through 3-7. CAUTION 1: MAKE SURE THE A-213-5 COUPLING IS IN PLACE BEFORE INSTALLING THE GOVERNOR ON THE “T” DRIVE. REFER TO FIGURE 3-7.
  • Page 118 HARTZELL PROPELLER OWNER'S MANUAL Page 3-38 61-00-40 INSTALLATION AND REMOVAL Rev. 5 Apr/23...
  • Page 119 HARTZELL PROPELLER OWNER'S MANUAL (8) Remove the fuel pump from the pad on the engine. (a) Cover the opening of the fuel lines with line caps. NOTE: Do not stuff material in the lines. (9) Remove the adapter (Continental P/N 40722) and gear shaft (Continental P/N 40724).
  • Page 120 HARTZELL PROPELLER OWNER'S MANUAL (19) Replace the fuel line with AN6260-6-29 hose and reroute the hose under the engine cylinders with two AN742D12C clamps. (20) I nstall the 6-C6BX-S elbow on the fuel line fire wall T-fitting and install the original fuel line. (21) Remove the two outboard studs on the engine pad and install the longer studs A-148-2, as shown in Figure 3-7.
  • Page 121 HARTZELL PROPELLER OWNER'S MANUAL (33) Install the vernier control 4 inches (101.6 mm) to the right of the center of the cockpit, just below the dashboard. (a) The vernier control is part number A-970BLO563 (Gerdes), 3A729-7 (Shakespeare) or A-970-10-0563 (ACS).

  • Page 122: Installing The Hc-D2(Mv,V)20-7( ) Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL F. Installing the HC-D2(MV,V)20-7( ) Propeller Assembly CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS...
  • Page 123 HARTZELL PROPELLER OWNER'S MANUAL Link Spool Drain oil Body Stop Screw Link Gasket 93-A Valve Assembly Engine oil pressure (Non-governing) Spool Body Drain oil Gasket Link Engine oil pressure Extension Block 93-AG Valve Assembly (Governing) Valve Assemblies: For HC-D2(MV,V)20-(7,8) Figure 3-9...
  • Page 124 HARTZELL PROPELLER OWNER'S MANUAL (c) Expose the inner cavity of the cylinder for installation on the engine case. Remove the screws from the retaining outer ring of the diaphragm. Remove the outer ring from the diaphragm. Remove the screws from the inner ring of the diaphragm.
  • Page 125 HARTZELL PROPELLER OWNER'S MANUAL (g) Install the cylinder Install one socket head cap screw in each of four cylinder mounting holes. Position the head of each screw on the piston side of the cylinder. Install one metal washer on each socket head cap screw that protrudes through the cylinder on the engine side of the cylinder.
  • Page 126 HARTZELL PROPELLER OWNER'S MANUAL Centerline Centerline Valve Assembly Mounting Surface (if present) B-119-2 Diaphragm C-111-( ) Cylinder B-119-2 Diaphragm B-113-2 Inner Ring Flat side of the inner ring against the diaphragm. C-111-( ) Cylinder Installation of the Diaphragm and the Inner Ring...
  • Page 127 HARTZELL PROPELLER OWNER'S MANUAL (j) Install the diaphragm and the inner ring. Refer to Figure 3-10. WARNING: DO NOT ALIGN THE TAB ON THE DIAPHRAGM WITH THE VALVE ASSEMBLY MOUNTING SURFACE ON THE CYLINDER. THIS WILL PREVENT THE DIAPHRAGM FROM SEATING PROPERLY AND MAY CAUSE THE DIAPHRAGM TO FAIL.
  • Page 128 HARTZELL PROPELLER OWNER'S MANUAL B-119-2 Diaphragm B-120 Outer Ring Diaphragm (installed on cylinder) Valve Assembly Mounting Surface (if present) Some outer rings have a tab as shown in the illustration. Align the tab with the valve assembly mounting surface on the cylinder (if present).
  • Page 129 HARTZELL PROPELLER OWNER'S MANUAL (k) Install the outer ring. Refer to Figure 3-11 Position the chamfered side of the outer ring flush against the diaphragm. Align the mounting holes in the outer ring with the holes in the diaphragm and cylinder. If the outer ring has a tab, as shown in...
  • Page 130 HARTZELL PROPELLER OWNER'S MANUAL Page 3-50 61-00-40 INSTALLATION AND REMOVAL Rev. 5 Apr/23...
  • Page 131 HARTZELL PROPELLER OWNER'S MANUAL (m) Align the appropriate holes in the piston with the guide rods in the cylinder. (n) Install the jack plate unit and piston assembly on the piston guide rods and against the diaphragm. (o) Install the hydraulic valve. Refer to Figure 3-9.
  • Page 132 HARTZELL PROPELLER OWNER'S MANUAL (d) On Lycoming engines, the clearance between the jack plate and any portion of the hub or spinner ring should be no less than 0.063 inch (1.59 mm) and no greater than 0.125 inch (3.17 mm). On Continental...
  • Page 133 HARTZELL PROPELLER OWNER'S MANUAL (3) Adjusting Travel on Hydraulic Unit With Governor (a) Pull the piston out with the propeller counterweights, until the piston guide arms extend a maximum of 0.50 inch (12.7 mm) for a 0.125 inch (3.17 mm) diaphragm or a maximum of 0.44 inch (11.18 mm)

  • Page 134: Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL (3) Propeller Installation (a) Clean the engine shaft with an approved solvent. (b) Oil the engine shaft with engine oil. (c) Install the spacer(s) and rear cone. Refer to Table 3-1. NOTE: Install the same number of spacers as previously installed if the same propeller is reinstalled. If a different propeller is...
  • Page 135 HARTZELL PROPELLER OWNER'S MANUAL (h) Rotate the blades until the push rods that protrude from the jack plate unit stop short of the two bushing lugs on the hub. (i) Rotate the jack plate unit to allow each fork to engage each pitch change block and to align each push rod with each hub bushing.
  • Page 136 HARTZELL PROPELLER OWNER'S MANUAL (4) Connecting the Propeller Pitch Control Cable to Hydraulic Valve Lever (a) Position the piston in forward position (toward propeller). NOTE: When in the forward position, the piston should extend 0.12 inch (3.0 mm) out in front of the outer ring.
  • Page 137 HARTZELL PROPELLER OWNER'S MANUAL CAUTION: CLEARANCE BETWEEN THE JACK PLATE AND THE HUB RING OR ANY PART OF HUB MUST BE MAINTAINED TO PREVENT EXCESSIVE LOADING OF THE JACK PLATE-TO-PISTON THRUST BEARING AND PREMATURE FAILURE. EXCESSIVE LOAD ON THE ENGINE NOSE CASE THRUST BEARING WILL ALSO RESULT.
  • Page 138 IF NOT ALIGNED PROPERLY, AND MAY AFFECT THE BALANCE OF THE PROPELLER. NOTE: The following instructions relate to Hartzell Propeller Inc. spinners only. If the airframe manufacturer produced the spinner assembly, refer to the airframe manufacturer’s manual for spinner installation instructions.

  • Page 139: Installing The Hc-D(2,3)(Mv,V)20-8( ) Propeller Assemblies

    HARTZELL PROPELLER OWNER'S MANUAL G. Installing the HC-D(2,3)(MV,V)20-8( ) Propeller Assemblies CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS...
  • Page 140 HARTZELL PROPELLER OWNER'S MANUAL (d) Install the hydraulic valve assembly on the piston with a gasket and two screws. Refer to Table 3-1. (e) Using a No. 51 drill, drill through the side of the valve housing and through the heads of the two A-2038-( ) screws.
  • Page 141 HARTZELL PROPELLER OWNER'S MANUAL (h) Install the diaphragm and the inner ring. Refer to Figure 3-10. DO NOT ALIGN THE TAB ON CAUTION: THE DIAPHRAGM WITH THE VALVE ASSEMBLY MOUNTING SURFACE ON THE CYLINDER (IF PRESENT). THIS WILL PREVENT THE DIAPHRAGM...
  • Page 142 HARTZELL PROPELLER OWNER'S MANUAL (i) Install the outer ring. Refer to Figure 3-11. Position the chamfered side of the outer ring flush against the diaphragm. Align the mounting holes in the outer ring with the holes in the diaphragm and cylinder. If the outer ring has a tab, as shown in...
  • Page 143 HARTZELL PROPELLER OWNER'S MANUAL (k) Align the appropriate holes in the piston with the guide rods in the cylinder. NOTE: Cylinder-to-piston guide rods may bind in the piston if the cylinder and piston combination is changed from that originally supplied.
  • Page 144 HARTZELL PROPELLER OWNER'S MANUAL (2) Adjusting Travel on Hydraulic Unit Without Governor. Refer to Figure 3-12. (a) Remove the low pitch stop screw from the valve link. (b) Loosen the screws to free the vernier control. (c) Pull the piston out with the counterweights, until the piston guide arms extend a maximum of 0.50 inch (12.7 mm) for a 0.125 inch (3.17 mm)
  • Page 145 HARTZELL PROPELLER OWNER'S MANUAL (j) In the high pitch position, the valve spool should extend 1.31 inch (33.3 mm) or less (preferably less) beyond the valve body casting. (k) Run the engine up and check the static RPM. 1 For fine adjustment, replace the low pitch stop screw.
  • Page 146 HARTZELL PROPELLER OWNER'S MANUAL (h) Rotate the blades until the push rods that protrude from the jack plate unit stop short of the two bushing lugs on the hub. (i) Rotate the jack plate unit to allow each fork to engage each pitch change block and to align each push rod with each hub bushing.
  • Page 147 HARTZELL PROPELLER OWNER'S MANUAL (4) Adjusting Travel on Hydraulic Unit With Governor (a) Pull the piston out with the propeller counterweights, until the piston guide arms extend a maximum of 0.50 inch (12.7 mm) for a 0.125 inch (3.17 mm) diaphragm from the outer diaphragm ring B-120.
  • Page 148 HARTZELL PROPELLER OWNER'S MANUAL (5) Connecting the Propeller Pitch Control Cable to Hydraulic Valve Lever (a) Position the piston in forward position (toward the propeller). NOTE: When in the forward position, the piston should extend 0.12 inch (3.0 mm) out in front of the outer ring.
  • Page 149 HARTZELL PROPELLER OWNER'S MANUAL CAUTION: CLEARANCE BETWEEN THE JACK PLATE AND THE HUB RING OR ANY PART OF HUB MUST BE MAINTAINED TO PREVENT EXCESSIVE LOADING OF THE JACK PLATE-TO-PISTON THRUST BEARING AND PREMATURE FAILURE. EXCESSIVE LOAD ON THE ENGINE NOSE CASE THRUST BEARING WILL ALSO RESULT.
  • Page 150 IF NOT ALIGNED PROPERLY, AND MAY AFFECT THE BALANCE OF THE PROPELLER. NOTE: The following instructions relate to Hartzell Propeller Inc. spinners only. If the airframe manufacturer produced the spinner assembly, refer to the airframe manufacturer’s manual for spinner installation instructions.

  • Page 151: Spinner Dome Installation

    NOT ALIGNED PROPERLY. THIS MAY AFFECT THE DYNAMIC BALANCE OF THE PROPELLER. NOTE 1: The following instructions relate to Hartzell Propeller Inc. spinners only. In some cases, the airframe manufacturer produced the spinner assembly. If so, refer to the airframe manufacturer’s manual for spinner installation instructions.
  • Page 152 HARTZELL PROPELLER OWNER'S MANUAL CAUTION: MAKE SURE OF PROPER THREAD ENGAGEMENT FOR THE SCREWS IN THE NUTPLATES. APPROXIMATELY 1 TO 1 1/2 THREADS MUST EXTEND PAST THE BULKHEAD NUTPLATES. TO AVOID DAMAGING THE AIRCRAFT COWLING, THE SCREWS MUST NOT EXTEND MORE THAN THREE THREADS PAST THE BULKHEAD NUTPLATES.

  • Page 153: Propeller Removal

    HARTZELL PROPELLER OWNER'S MANUAL 7. Propeller Removal CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST CHAPTER OF THE APPLICABLE...
  • Page 154 HARTZELL PROPELLER OWNER'S MANUAL WARNING: USE A SUITABLY RATED SLING TO SUPPORT THE WEIGHT OF THE PROPELLER ASSEMBLY DURING REMOVAL. CAUTION: USE ADEQUATE PRECAUTIONS TO PROTECT THE PROPELLER ASSEMBLY FROM DAMAGE WHEN IT IS REMOVED FROM THE AIRCRAFT ENGINE AND WHEN IT IS STORED.

  • Page 155: Removal Of The Hc-D3(Mv,V)20-6L Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL B. Removal of the HC-D3(MV,V)20-6L Propeller Assembly (1) Propeller Removal (a) Disconnect the reverse pitch control cable from the hydraulic valve lever on the short end that extends from the valve spool. (b) Disconnect the propeller pitch control cable from the hydraulic valve lever on the long end that extends from the valve spool.
  • Page 156 HARTZELL PROPELLER OWNER'S MANUAL WARNING: USE A SUITABLY RATED SLING TO SUPPORT THE WEIGHT OF THE PROPELLER ASSEMBLY DURING REMOVAL. CAUTION: USE ADEQUATE PRECAUTIONS TO PROTECT THE PROPELLER ASSEMBLY FROM DAMAGE WHEN IT IS REMOVED FROM THE AIRCRAFT ENGINE AND WHEN IT IS STORED.

  • Page 157: Removal Of The Hc-D2(Mv,V)20-7 Propeller Assembly

    HARTZELL PROPELLER OWNER'S MANUAL C. Removal of the HC-D2(MV,V)20-7 Propeller Assembly CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS...
  • Page 158 HARTZELL PROPELLER OWNER'S MANUAL (f) Rotate the blades until the push rods that protrude from the jack plate unit slide out of each of the guide lug bushings in the hub. (g) Rotate the jack plate unit to allow each fork to disengage each pitch change block.
  • Page 159 HARTZELL PROPELLER OWNER'S MANUAL (2) Hydraulic Unit Removal for Propeller Model HC-D2(MV,V)20-7( ) CAUTION 1: USE ADEQUATE PRECAUTIONS TO PROTECT THE HYDRAULIC UNIT FROM DAMAGE WHEN IT IS REMOVED FROM THE AIRCRAFT ENGINE AND WHEN IT IS STORED. CAUTION 2:...

  • Page 160: Removal Of The Hc-D(2,3)(Mv,V)20-8( ) Propeller

    HARTZELL PROPELLER OWNER'S MANUAL D. Removal of the HC-D(2,3)(MV,V)20-8( ) Propeller Assemblies (1) Propeller Removal CAUTION: TO PREVENT DAMAGE TO THE BLADE AND BLADE PAINT, WRAP THE BLADE SHANKS IN SEVERAL LAYERS OF MASKING OR DUCT TAPE BEFORE REMOVING THE SPINNER DOME (IF INSTALLED).
  • Page 161 HARTZELL PROPELLER OWNER'S MANUAL WARNING: USE A SUITABLY RATED SLING TO SUPPORT THE WEIGHT OF THE PROPELLER ASSEMBLY DURING REMOVAL. CAUTION: USE ADEQUATE PRECAUTIONS TO PROTECT THE PROPELLER ASSEMBLY FROM DAMAGE WHEN IT IS REMOVED FROM THE AIRCRAFT ENGINE AND WHEN IT IS STORED.
  • Page 162 HARTZELL PROPELLER OWNER'S MANUAL (c) Remove the screws and washers from the inner and outer rings that retain the diaphragm to the cylinder. (d) Remove the six locking nuts from the six studs that retain the cylinder to the engine case.

  • Page 163: Testing And Troubleshooting

    HARTZELL PROPELLER OWNER'S MANUAL TESTING AND TROUBLESHOOTING - CONTENTS 1. Operational Checks ..............4-3 2. Troubleshooting ..............4-3 A. Insufficient RPM Control (Non-governing Propeller) ..4-3 B. Maximum RPM (Static) is Low (Governing Propeller) ..4-4 C. Static RPM too low - HC-D2(MV,V)20-3 Propeller Model ..............4-5 D. Static RPM too low - HC-D3(MV,V)20-6L Propeller Model ..............4-6 E. Maximum RPM (Static) is High (Governing Propeller) ..4-7 F. Static RPM too high - HC-D2(MV,V)20-3 Propeller Model ..............4-7 G. Static RPM too high - HC-D3(MV,V)20-6L...

  • Page 164: Testing And Troubleshooting - Contents

    HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 4-2 61-00-40 TESTING AND TROUBLESHOOTING Rev. 5 Apr/23...

  • Page 165: Operational Checks

    HARTZELL PROPELLER OWNER'S MANUAL 1. Operational Checks (Rev. 1) A. Operational Checks (1) Refer to the Inspection and Check chapter of this manual for operational checks including pre-flight, initial run-up, and post-run checks. 2. Troubleshooting CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST CHAPTER...

  • Page 166: Maximum Rpm (Static) Is Low (Governing Propeller)

    HARTZELL PROPELLER OWNER'S MANUAL B. Maximum RPM (Static) is Low (Governing Propeller) (1) Engine Power is low (a) Follow aircraft POH and/or AMM recommended checks to determine if the engine power is low. (b) If the engine power is low, refer to a certificated engine repair station or the engine manufacturer. (c) If the engine power is within acceptable limits, examine the maximum RPM stop setting of the governor. (d) Governor Maximum RPM Stop Setting 1 Increase the maximum RPM stop screw of the governor by one turn. 2 Advance the propeller RPM control to maximum RPM and reduce the control by one inch (25 mm). 3 Set the brakes and chock the wheels of the aircraft, or tie the aircraft down. Start the engine. 5 Slowly advance the throttle to maximum manifold pressure. 6 Slowly advance the propeller control lever until the engine speed stabilizes. 7 If the engine speed stabilizes at a higher RPM than it was previously running, then the governor maximum RPM stop setting is incorrectly set.

  • Page 167: Static Rpm Too Low - Hc-D2(Mv,V)20-3 Propeller Model

    HARTZELL PROPELLER OWNER'S MANUAL C. Static RPM too low - HC-D2(MV,V)20-3 Propeller Model (1) Stop the engine. CAUTION: NEVER OPERATE THE PROPELLER WITH THE JACK PLATE AGAINST THE SHOULDER. THE MINIMUM CLEARANCE IS 0.012 INCH (0.30 mm). (2) If no more adjustment of the low pitch stop screw is available, check to determine if the jack plate is against the shoulder of the hub. (a) Correct by removing the propeller and adding or removing shims, as required, between the rear cone and the engine to attain a lower pitch. NOTE: Removing shims will increase engine RPM. Installing shims will decrease engine RPM. (3) If the valve lever stop is not controlling the travel of the push pull control because it is limited in the cockpit, correct using the following steps: (a) Loosen the control housing clamp next to the valve. (b) Move the control housing toward the propeller until the stop on the lever limits the lever movement. (c) Adjust the stop to achieve proper static RPM. Page 4-5...

  • Page 168: Static Rpm Too Low - Hc-D3(Mv,V)20-6L Propeller Model

    HARTZELL PROPELLER OWNER'S MANUAL D. Static RPM too low - HC-D3(MV,V)20-6L Propeller Model (1) Adjust the stop that controls the valve lever travel so the proper RPM is obtained. (2) Start and warm up the engine and check propeller action. (a) The full throttle maximum static rpm, with cockpit propeller control full forward, should be held to the limits listed in the Aircraft Type Certificate Data Sheet. (3) Stop the engine and back off on the low pitch stop screw. (a) For -6 models, the screw adjusts directly against the valve body. (4) Run the engine up. If the static RPM is still low, stop the engine and further adjust the low pitch stop screw. CAUTION: NEVER OPERATE THE PROPELLER WITH THE JACK PLATE AGAINST THE SHOULDER. THE MINIMUM CLEARANCE IS 0.120 INCH (3.05 MM). (5) If no more adjustment of the low pitch stop screw is available, and the jack plate is against the shoulder of the hub, perform the following steps: (a) Remove the propeller and add shims, as required, between the rear cone and the engine to attain a lower pitch.

  • Page 169: Maximum Rpm (Static) Is High (Governing Propeller)

    HARTZELL PROPELLER OWNER'S MANUAL E. Maximum RPM (Static) is High (Governing Propeller) (1) Engine power is high (a) Follow the aircraft POH and/or AMM recommended engine checks to determine if the engine power is high. (b) If the engine power is high, refer to an appropriately licensed engine repair station or to the engine manufacturer. (c) If the engine power is within acceptable limits, examine the maximum RPM stop setting of the governor. F. Static RPM too high - HC-D2(MV,V)20-3 Propeller Model (1) Start and warm up the engine and check propeller action. The full throttle maximum static rpm, with cockpit propeller control full forward, should be held to the limits listed in the Aircraft Specification. (2) Reduce the propeller RPM with the propeller control until the correct RPM is obtained. (3) Stop the engine. (4) Adjust the propeller low pitch stop screw that limits valve lever travel and is attached to the hydraulic cylinder. NOTE: On -6 models the low pitch stop screw adjusts directly against the valve body. G. Static RPM too high - HC-D3(MV,V)20-6L Propeller Model (1) Start and warm up the engine and check propeller action. The full throttle maximum static rpm, with cockpit...

  • Page 170: Insufficient High-Low Pitch Control

    HARTZELL PROPELLER OWNER'S MANUAL H. Insufficient High-Low Pitch Control (Non-governing Reversing Propeller) (1) Adjust the reversing control if it is not tight NOTE: If the reversing control does not pull the short end of the valve lever (pivot point) up tight against the bracket, it will be impossible to satisfactorily adjust the high-low pitch control. It may also be impossible to obtain full high pitch. (a) Loosen the clamp that holds the push-pull control housing. (b) Slide the housing away from the propeller. (c) Pull the lever pivot back against the bracket. (d) Tighten the clamp. (e) Position the cockpit reverse control line forward, just off the locked position. (f) Attach the control line at the propeller to the short end of the lever on the valve. 1 Make sure the clamping bolt is tight against the bracket on the cylinder. (g) Move the cockpit reverse control lever into the locked position. NOTE: There should be increased tension in the line due to the slack being taken up.

  • Page 171: Hunting And Surging (Governing Propeller Only)

    HARTZELL PROPELLER OWNER'S MANUAL J. Hunting and Surging (Governing Propeller Only) (Rev. 2) (1) General (a) Hunting is characterized by a cyclic variation in engine speed above and below desired speed. Surging is characterized by a large increase/ decrease in engine speed, followed by a return to set speed after one or two occurrences. (b) If the propeller is hunting, a certified airframe and powerplant mechanic with the appropriate rating or a certified propeller repair station with the appropriate rating should check: Governor Fuel control 3 Synchrophaser, or synchronizer (if applicable) (2) If propeller is surging: (a) Perform the “Initial Run-Up” in accordance with the Inspection and Check chapter of this manual to release trapped air from the propeller. 1 If surging reoccurs it is most likely due to a faulty governor. a Have the governor tested by a certified propeller repair station with the appropriate rating.

  • Page 172: Vibration

    HARTZELL PROPELLER OWNER'S MANUAL L. Vibration CAUTION: ANY VIBRATION THAT CAN BE DESCRIBED AS APPEARING SUDDENLY, OR IS ACCOMPANIED BY UNEXPLAINED GREASE LEAKAGE SHOULD BE INVESTIGATED IMMEDIATELY BEFORE FURTHER FLIGHT. NOTE: Vibration problems caused by propeller system imbalance are normally felt throughout the RPM range, with the intensity of vibration increasing with RPM. Vibration is also a symptom of resonance and potentially harmful to the propeller. Avoid operation until the propeller can be checked by an authorized repair station. (1) Check: (a) Control surfaces, cowl flaps, exhaust system, landing gear doors, etc. for excessive play, which may be causing vibration unrelated to the propeller (b) Secure attachment of engine mounted hardware (c) Engine mount wear (d) Proper engine/propeller flange mating (e) Spinner for cracks, improper installation, or "wobble"...

  • Page 173: Propeller Overspeed (Non-Governing)

    HARTZELL PROPELLER OWNER'S MANUAL M. Propeller Overspeed (Non-governing) (1) Check: (a) Tachometer error (b) Low pitch stop adjustment (c) Propeller rigging N. Propeller Overspeed (Governing) (1) Check: (a) Tachometer error (b) Low pitch stop adjustment (c) Governor Failure (d) Governor pilot valve is jammed, supplying high pressure O. Propeller Underspeed (Non-governing) (1) Check: (a) Tachometer error (b) Propeller rigging P. Propeller Underspeed (Governing) (1) Check: (a) Tachometer error...

  • Page 174: Oil Or Grease Leakage

    HARTZELL PROPELLER OWNER'S MANUAL Q. Oil or Grease Leakage CAUTION: GREASE LEAKAGE THAT CAN BE DESCRIBED AS EXCESSIVE AND APPEARING SUDDENLY, ESPECIALLY WHEN ACCOMPANIED BY VIBRATION, SHOULD BE INVESTIGATED IMMEDIATELY BEFORE FURTHER FLIGHT. (1) For grease leakage, check: (a) Damaged blade clamp O-ring seal (b) Damaged jack plate cover gasket (2) For oil leakage, check: (a) Damaged diaphragm (-7 and -8 propellers) (b) Damaged gasket between the engine and cylinder (-7, -8, -3, and -6L propellers) (c) Damaged O-ring around the cylinder mounting stud (-8 propellers) (d) Loose guide pin in the cylinder (guides the piston) (-6L propellers)

  • Page 175: Inspection And Check

    HARTZELL PROPELLER OWNER'S MANUAL INSPECTION AND CHECK - CONTENTS 1. Pre-Flight Checks ..............5-3 A. Important Information ............5-3 B. Propeller Blades ..............5-3 C. Spinner Assembly and Blade Retention Components ..5-3 D. Hardware ................5-4 E. Grease/Oil Leakage ............5-4 F.
  • Page 176 HARTZELL PROPELLER OWNER'S MANUAL INSPECTION AND CHECK - CONTENTS, continued 5. Special Inspections ............... 5-18 A. Overspeed ..............5-18 B. Lightning Strike ..............5-19 C. Foreign Object Strike/Ground Strike ........ 5-20 D. Fire/Heat Damage ............5-22 E. Sudden Stoppage ............5-22 F.

  • Page 177: Inspection And Check - Contents

    HARTZELL PROPELLER OWNER'S MANUAL 1. Pre-Flight Checks (Rev. 2) CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST...

  • Page 178: Hardware

    HARTZELL PROPELLER OWNER'S MANUAL D. Hardware (1) Check for loose or missing hardware. (a) Retighten or reinstall as necessary. WARNING: ABNORMAL GREASE/OIL LEAKAGE CAN BE AN INDICATION OF A FAILING PROPELLER BLADE OR BLADE RETENTION COMPONENT. AN IN-FLIGHT BLADE SEPARATION CAN RESULT IN A CATASTROPHIC AIRCRAFT ACCIDENT.

  • Page 179: Operational Checks

    HARTZELL PROPELLER OWNER'S MANUAL 2. Operational Checks (Rev. 2) CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST CHAPTER...
  • Page 180 HARTZELL PROPELLER OWNER'S MANUAL (4) Check the propeller speed control and operation from low pitch to high pitch using the procedure specified in the POH. (a) Perform all ground functional, feathering, and cycling checks with the minimum propeller RPM drop required to demonstrate the function.

  • Page 181: Static Rpm Check (Governing Propeller)

    HARTZELL PROPELLER OWNER'S MANUAL B. Static RPM Check (Governing Propeller) NOTE: This operational check should be performed after installation, maintenance, or propeller adjustment. CAUTION: A CALIBRATED TACHOMETER MUST BE USED TO MAKE SURE OF THE ACCURACY OF THE RPM CHECK.

  • Page 182: Static Rpm Check (Non-Governing Propellers)

    HARTZELL PROPELLER OWNER'S MANUAL C. Static RPM Check (Non-Governing Propellers) (1) Start the engine and allow it to warm up. (2) Check the propeller action with the propeller pitch control (RPM control). (3) Determine the full throttle maximum static RPM obtained with the cockpit propeller control full forward for lowest pitch.

  • Page 183: Periodic Maintenance

    Airworthiness Limitations chapter of this manual. (3) Operators are urged to keep informed of airworthiness information via Hartzell Propeller Inc. Service Bulletins and Service Letters, which are available from Hartzell distributors or from Hartzell by subscription. Selected information is also available on Hartzell Propeller’s website at www.hartzellprop.com.

  • Page 184: Overhaul Periods

    (a) For Hartzell Propeller Inc. propeller overhaul periods, refer to Hartzell Propeller Inc. Service Letter HC-SL-61-61Y. 4. Inspection Procedures A.
  • Page 185 (6) If cracks or failing components are found, these parts must be replaced before further flight. Report such occurrences to airworthiness authorities and to Hartzell Propeller Inc. Product Support. Page 5-11 61-00-40 INSPECTION AND CHECK Rev.

  • Page 186: Vibration

    HARTZELL PROPELLER OWNER'S MANUAL C. Vibration (Rev. 1) NOTE: Vibration may originate in the engine, propeller, or airframe. Troubleshooting procedures typically begin with an investigation of the engine. Airframe components, such as engine mounts or loose landing gear doors, can also be the source of vibration.
  • Page 187 (g) If cracks or failing components are found, these parts must be replaced before further flight. Report such occurrences to airworthiness authorities and Hartzell Propeller Inc. Product Support. Page 5-13 61-00-40 INSPECTION AND CHECK...
  • Page 188 HARTZELL PROPELLER OWNER'S MANUAL Checking Blade Track Figure 5-1 In-and-Out Play Radial Play End Play Blade Play Figure 5-2 Page 5-14 61-00-40 INSPECTION AND CHECK Rev. 5 Apr/23...

  • Page 189: Blade Track

    HARTZELL PROPELLER OWNER'S MANUAL D. Blade Track (1) Check the blade track as follows: (a) Chock the aircraft wheels securely. (b) Refer to Figure 5-1. Place a fixed reference point beneath the propeller, within 0.25 inch (6 mm) of the lowest point of the propeller arc.

  • Page 190: Corrosion

    (1) Inspect the spinner for cracks, missing hardware, or other damage. (a) Metal Spinners For damage evaluation and repair information, refer to Hartzell Propeller Inc. Manual 127 (61-16-27) or a certified propeller repair station with the appropriate rating. Contact the local airworthiness authority for repair approval.
  • Page 191 HARTZELL PROPELLER OWNER'S MANUAL Page 5-17 61-00-40 INSPECTION AND CHECK Rev. 5 Apr/23...

  • Page 192: Special Inspections

    Engine Overspeed Limits (Figure 5-3) to determine the corrective action to be taken. (b) If an overspeed requiring propeller evaluation occurs on an aircraft using a Hartzell Propeller Inc. governor, the governor must be evaluated by a certified propeller repair station with the appropriate rating.

  • Page 193: Lightning Strike

    HARTZELL PROPELLER OWNER'S MANUAL B. Lightning Strike (Rev. 1) CAUTION: REFER TO THE ENGINE AND AIRFRAME MANUFACTURER’S MANUALS FOR ADDITIONAL INSPECTIONS TO PERFORM AFTER A PROPELLER LIGHTNING STRIKE. (1) General (a) In the event of a propeller lightning strike, an inspection is required before further flight.

  • Page 194: Foreign Object Strike/Ground Strike

    HARTZELL PROPELLER OWNER'S MANUAL If there is evidence of additional damage, beyond minor arcing burns to the blades, temporary operation is not permitted. The propeller must be removed from the aircraft, disassembled, evaluated, and/or repaired by a certified propeller repair station with the appropriate rating before further flight.
  • Page 195 HARTZELL PROPELLER OWNER'S MANUAL Any incident during engine operation in which the propeller impacts a solid object that causes a drop in revolutions per minute (RPM) and also requires structural repair of the propeller (incidents requiring only paint touch-up are not included).

  • Page 196: Fire/Heat Damage

    HARTZELL PROPELLER OWNER'S MANUAL (d) Engine mounted components - such as governors, pumps, etc. may be damaged by a foreign object strike, especially if the strike resulted in a sudden stoppage of the engine. These components must be inspected and repaired in accordance with the applicable component maintenance manual.

  • Page 197: Engine Oil Contamination

    6. Long Term Storage A. Important Information (1) Parts shipped from Hartzell Propeller Inc. are not shipped or packaged in a container that is designed for long term storage. (2) Long term storage procedures are detailed in Hartzell Propeller Inc.
  • Page 198 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 5-24 61-00-40 INSPECTION AND CHECK Rev. 5 Apr/23...

  • Page 199: Maintenance Practices

    HARTZELL PROPELLER OWNER'S MANUAL MAINTENANCE PRACTICES - CONTENTS 1. Cleaning ................. 6-3 A. General Cleaning ............... 6-4 B. Spinner Cleaning and Polishing ......... 6-5 2. Lubrication ................6-6 A. Lubrication Intervals ............6-6 B. Lubrication Procedure ............6-8 C. Approved Lubricants ............6-12 D.
  • Page 200 HARTZELL PROPELLER OWNER'S MANUAL FIGURES Lubrication Fitting ........Figure 6-1 ....6-7 Lubrication Label ........Figure 6-2 ....6-8 Thrust Bearing Lubrication ..... Figure 6-3 ....6-11 Applying Corrosion Inhibitor ....Figure 6-4 ....6-14 Repair Limitations ........Figure 6-5 ....6-18 Dynamic Balance Label ......

  • Page 201: Cleaning

    HARTZELL PROPELLER OWNER'S MANUAL 1. Cleaning (Rev. 2) CAUTION 1: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST CHAPTER OF...

  • Page 202: General Cleaning

    HARTZELL PROPELLER OWNER'S MANUAL A. General Cleaning CAUTION 1: WHEN CLEANING THE PROPELLER, DO NOT ALLOW SOAP OR SOLVENT SOLUTIONS TO RUN OR SPLASH INTO THE HUB AREA. CAUTION 2: DO NOT CLEAN THE PROPELLER WITH CAUSTIC OR ACIDIC SOAP SOLUTIONS.

  • Page 203: Spinner Cleaning And Polishing

    HARTZELL PROPELLER OWNER'S MANUAL IMPORTANT: WHEN PERFORMING STEPS 5 THRU 7, THE BLADE(S) TO BE CLEANED MUST POINT DOWNWARD. THIS WILL PREVENT THE SOAP SOLUTION AND/ OR CONTAMINANTS FROM FLOWING INTO THE HUB/BLADE SEAL AREA. CAUTION: DO NOT LET THE SOAP SOLUTION DRY ON THE SURFACES OF THE HUB, BULKHEAD, OR SLIP RING.

  • Page 204: Lubrication

    HARTZELL PROPELLER OWNER'S MANUAL 2. Lubrication (Rev. 5) CAUTION: INSTRUCTIONS AND PROCEDURES IN THIS SECTION MAY INVOLVE PROPELLER CRITICAL PARTS. REFER TO THE INTRODUCTION CHAPTER OF THIS MANUAL FOR INFORMATION ABOUT PROPELLER CRITICAL PARTS. REFER TO THE ILLUSTRATED PARTS LIST CHAPTER...
  • Page 205 HARTZELL PROPELLER OWNER'S MANUAL (3) Hartzell Propeller Inc. recommends that new or newly overhauled propellers be lubricated after approximately the first ten hours of operation, because centrifugal loads will pack and redistribute grease which can result in a propeller imbalance. Redistribution of grease may also result in voids in the blade bearing area where moisture can collect.

  • Page 206: Lubrication Procedure

    HARTZELL PROPELLER OWNER'S MANUAL B. Lubrication Procedure WARNING: FOLLOW LUBRICATION PROCEDURES CORRECTLY TO MAINTAIN ACCURATE BALANCE OF THE PROPELLER ASSEMBLY. (1) Remove the propeller spinner. CAUTION: STEEL BLADE CLAMPS PRODUCED BEFORE 1967 MAY HAVE ONLY ONE LUBRICATION FITTING. DO NOT REMOVE THIS FITTING WHEN SERVICING.
  • Page 207 (a) EXCEPTION: Aeroshell 5 and Aeroshell 6 greases both have a mineral oil base and the same thickening agent; therefore, mixing of these two greases is permitted in Hartzell propellers. WARNING: WHEN MIXING AEROSHELL 5 AND AEROSHELL 6 GREASES,...
  • Page 208 HARTZELL PROPELLER OWNER'S MANUAL CAUTION 2: GREASE MUST BE APPLIED TO ALL BLADES OF A PROPELLER ASSEMBLY AT THE TIME OF LUBRICATION. CAUTION 3: DO NOT ATTEMPT TO PUMP MORE THAN 1 FL. OZ. (30 ML) OF GREASE INTO THE LUBRICATION FITTING.
  • Page 209 HARTZELL PROPELLER OWNER'S MANUAL Lubricate thrust bearing A-38( ) at this location on the C-112-2 Piston Lubricate thrust bearing A-38( ) at this location on the D-78 Piston Thrust Bearing Lubrication Figure 6-3 Page 6-11 61-00-40 MAINTENANCE PRACTICES Rev. 5 Apr/23...

  • Page 210: Approved Lubricants

    (a) Make sure the ball of each lubrication fitting is properly seated. (9) Install a lubrication fitting cap on each lubrication fitting. C. Approved Lubricants (1) For a list of lubricants approved for use in Hartzell propellers, refer to the Consumable Materials chapter of Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02). D. A-38( )Thrust Bearing Lubrication (1) The A-38( ) thrust bearing must be lubricated every 100 hours.

  • Page 211: Corrosion Inhibitor

    (1) The bolt-on, steel counterweights on propellers manufactured after the release date of Service Letter HC-SL-61-364 dated April, 3, 2020 will be coated with corrosion inhibitor CM352 by Hartzell Propeller Inc. during the assembly process. Corrosion inhibitor CM352 is applied to prevent corrosion on the counterweight.
  • Page 212 HARTZELL PROPELLER OWNER'S MANUAL NOTE: Non-painted clamp unit is shown. Bolt Wells Bolt Heads Spring Pin Applying Corrosion Inhibitor Figure 6-4 Page 6-14 61-00-40 MAINTENANCE PRACTICES Rev. 5 Apr/23...

  • Page 213: Application Procedure

    HARTZELL PROPELLER OWNER'S MANUAL B. Application Procedure (1) Remove the spinner dome in accordance with the Installation and Removal chapter of this manual. CAUTION: DO NOT APPLY CORROSION INHIBITOR CM352 ONTO ICE PROTECTION SYSTEM COMPONENTS (TERMINAL STRIPS, BOOTS, HARNESSES, ETC.).

  • Page 214: Aluminum Blades

    HARTZELL PROPELLER OWNER'S MANUAL 4. Aluminum Blades (Rev. 2) WARNING: NICKS, GOUGES, OR SCRATCHES OF ANY SIZE CAN CREATE A STRESS RISER THAT COULD POTENTIALLY LEAD TO BLADE CRACKING. ALL DAMAGE SHOULD BE VISUALLY EXAMINED CAREFULLY BEFORE FLIGHT FOR THE PRESENCE OF CRACKS OR OTHER ABNORMALITIES.

  • Page 215: Repair Of Nicks And Gouges

    HARTZELL PROPELLER OWNER'S MANUAL (2) Field repair of small nicks and scratches may be performed by qualified personnel in accordance with FAA Advisory Circular 43.13-1B, and the procedures specified in this section. (3) Normal erosion (sand-blasted appearance) on the leading edge of the blade is acceptable, and does not require removal before further flight.
  • Page 216 HARTZELL PROPELLER OWNER'S MANUAL Example 1 Finish repair must maintain LOOKING AT original airfoil shape. LEADING EDGE Example 2 Example 3 LEADING EDGE FACE/CAMBER 2.5 Inches (63.5 mm) 2.5 Inches (63.5 mm) = D x 20 = D x 10 0.13 Inch (1.38 mm) deep...
  • Page 217 (7) If inspections show any remaining blade damage, repeat steps (5) and (6) of this procedure until no damage remains. (8) After repair, Hartzell Propeller Inc. recommends penetrant inspection of the blade in accordance with Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02).

  • Page 218: Repair Of Bent Blades

    OF THE APPLICABLE OVERHAUL MANUAL(S) FOR THE IDENTIFICATION OF SPECIFIC PROPELLER CRITICAL PARTS. A. Important Information (1) Blade paint touch-up on Hartzell propeller blades may be permitted when performed in accordance with the instructions in this section. (a) Aluminum Blades Only: Blade paint touch-up is permitted for any size area on an aluminum blade.

  • Page 219: Paint

    HARTZELL PROPELLER OWNER'S MANUAL B. Paint (1) The paints listed in Table 6-1 have been tested by Hartzell Propeller Inc. and are recommended for blade touch-up. (a) Alternate paints may be used for blade touch-up, but Hartzell Propeller Inc. accepts no responsibility for wear or adhesion-related issues.

  • Page 220: Procedure

    HARTZELL PROPELLER OWNER'S MANUAL (2) Touch-up paint manufacturer’s contact information: (a) Tempo Products Company A Plasti-kote Company 1000 Lake Road Medina, OH 44256 Tel: 800.321.6300 Fax: 216.349.4241 Cage Code: 07708 (b) Sherwin-Williams Company Refer to the Sherwin-Williams Product Finishes Global Finishes Group website at: http://oem.sherwin-williams.com...
  • Page 221 HARTZELL PROPELLER OWNER'S MANUAL CAUTION 2: BE SURE TO SAND/FEATHER THE EXISTING COATINGS TO PREVENT EXCESSIVE PAINT BUILDUP. (3) Using 120 to 180 grit sandpaper, sand to feather the existing coatings away from the eroded or repaired area. (a) Erosion damage is typically very similar on all blades in a propeller assembly.
  • Page 222 HARTZELL PROPELLER OWNER'S MANUAL WARNING: FINISH COATINGS ARE FLAMMABLE AND TOXIC TO THE SKIN, EYES AND RESPIRATORY TRACT. SKIN AND EYE PROTECTION ARE REQUIRED. AVOID PROLONGED CONTACT. USE IN A WELL VENTILATED AREA. CAUTION: APPLY FINISH COATING TO UNIFORMLY COVER THE REPAIR/ EROSION.

  • Page 223: Dynamic Balance

    (2) The number of balance weights installed must not exceed the limits specified in this chapter. (3) Follow the dynamic balance equipment manufacturer’s instructions for dynamic balance in addition to the specifications of this section. NOTE: Hartzell Propeller Inc. Standard Practices Manual 202A (61-01-02), Chapter 600, also contains information on weight placement and balancing. Page 6-25 61-00-40 MAINTENANCE PRACTICES Rev.

  • Page 224: Inspection Procedures Before Balancing

    HARTZELL PROPELLER OWNER'S MANUAL B. Inspection Procedures Before Balancing (1) Visually inspect the propeller assembly before dynamic balancing. NOTE: The first run-up of a new or overhauled propeller assembly may leave a small amount of grease on the blades. (a) Use Stoddard solvent (or equivalent) to completely remove any grease on the blades or inner surface of the spinner dome.

  • Page 225: Placement Of Balance Weights For Dynamic Balance

    HARTZELL PROPELLER OWNER'S MANUAL C. Placement of Balance Weights for Dynamic Balance NOTE 1: The preferred method of attachment of dynamic balance weights is to add the weights to the spinner bulkhead; however, some propeller models covered in this manual do not have a spinner.
  • Page 226 HARTZELL PROPELLER OWNER'S MANUAL (4) Install weights using aircraft quality #10-32 or AN-3( ) type screws or bolts. (5) When dynamic balancing is accomplished, it is recommended that a dynamic balance label p/n A-2803 (Figure 6-6) be installed on the propeller.

  • Page 227: Maximum Rpm Check (On Ground)

    HARTZELL PROPELLER OWNER'S MANUAL 7. Maximum RPM Check (On Ground) WARNING 1: RPM ADJUSTMENTS MUST BE MADE WITH REFERENCE TO A CALIBRATED TACHOMETER. AIRCRAFT MECHANICAL TACHOMETERS DEVELOP ERRORS OVER TIME AND SHOULD BE PERIODICALLY RECALIBRATED TO MAKE SURE THE PROPER RPM IS DISPLAYED.

  • Page 228: Tachometer Calibration

    HARTZELL PROPELLER OWNER'S MANUAL 8. Tachometer Calibration (Rev. 1) WARNING: OPERATION WITH AN INACCURATE TACHOMETER CAN CAUSE RESTRICTED RPM OPERATION AND DAMAGING HIGH STRESSES. PROPELLER LIFE WILL BE SHORTENED AND COULD CAUSE CATASTROPHIC FAILURE. A. Important Information (1) All engine/propeller combinations have operating conditions at which the propeller blade stresses begin to reach design limits.

  • Page 229: Tachometer Calibration

    National Institute of Standards and Technology (NIST) or similar national standard (traceable). (2) Contact Hartzell Propeller Inc. if the propeller was operated in a restricted RPM range because of a tachometer error. Page 6-31...
  • Page 230 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 6-32 61-00-40 MAINTENANCE PRACTICES Rev. 5 Apr/23...

  • Page 231: Anti-Ice And De-Ice Systems

    HARTZELL PROPELLER OWNER'S MANUAL ANTI-ICE AND DE-ICE SYSTEMS NOTE: The propellers covered in this manual do not use anti-ice or de-ice systems. Page 7-1 61-00-40 ANTI-ICE AND DE-ICE SYSTEMS Rev. 5 Apr/23...
  • Page 232 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 7-2 61-00-40 ANTI-ICE AND DE-ICE SYSTEMS Rev. 5 Apr/23...

  • Page 233: Records

    HARTZELL PROPELLER OWNER'S MANUAL RECORDS - CONTENTS 1. Record Keeping ..............8-3 A. General ................8-3 B. Information to be Recorded ..........8-3 Page 8-1 61-00-40 RECORDS Rev. 5 Apr/23...
  • Page 234 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 8-2 61-00-40 RECORDS Rev. 5 Apr/23...
  • Page 235 HARTZELL PROPELLER OWNER'S MANUAL 1. Record Keeping (Rev. 1) A. General (1) Federal Aviation Regulations require that a record be kept of any repairs, adjustments, maintenance, or required inspections performed on a propeller or propeller system. B. Information to be Recorded (1) Refer to Part 43 of the U.S.
  • Page 236 HARTZELL PROPELLER OWNER'S MANUAL (This page is intentionally blank.) Page 8-4 61-00-40 RECORDS Rev. 5 Apr/23...

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