Rotax 914 series Maintenance Manual
  1. Manuals
  2. Brands
  3. Rotax Manuals
  4. Engine
  5. 914 series
  6. Maintenance manual

Rotax 914 series Maintenance Manual

914 series;
Hide thumbs Also See for 914 series:
Table of Contents

Advertisement

Quick Links

See also: Operator's Manual , Installation Manual
�������� �������
MAINTENANCE MANUAL
FOR ROTAX® ENGINE TYPE 914 SERIES
(LINE MAINTENANCE)
Ref. No.: MML-914
ROTAX ® 914 UL 3
WITH OPTIONS
part no.: 899608

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 914 series and is the answer not in the manual?

Questions and answers

Related Manuals for Rotax 914 series

Summary of Contents for Rotax 914 series

  • Page 1 �������� ������� MAINTENANCE MANUAL FOR ROTAX® ENGINE TYPE 914 SERIES (LINE MAINTENANCE) Ref. No.: MML-914 ROTAX ® 914 UL 3 WITH OPTIONS part no.: 899608...
  • Page 2 BRP-Powertrain GmbH&Co KG, be disclosed in whole or in part to third parties. This legend shall be included on any reproduction of these data, in whole or in part. Copyright 2010 © - all rights reserved. ROTAX is a trade mark of BRP-Powertrain GmbH&Co KG. In the following document the ®...
  • Page 3 Chapter 05-10-00 Scheduled maintenance checks Chapter 05-20-00 Unscheduled maintenance checks Chapter 05-50-00 Maintenance of the systems Chapter 12-00-00 Replenishing operating fluids Chapter 12-10-00 Chapter 12-20-00 Scheduled maintenance Effectivity: 914 Series INTRO Edition 2 / Rev. 1 page 1 July 01/2010...
  • Page 4 BRP-Powertrain MAINTENANCE MANUAL NOTES INTRO Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...
  • Page 5 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 Effectivity: 914 Series Edition 2 / Rev. 1 page 1 July 01/2010...
  • Page 6 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 Effectivity: 914 Series Edition 2 / Rev. 1 page 2 July 01/2010...
  • Page 7 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 01 01 2010 Rear page Effectivity: 914 Series Edition 2 / Rev. 1 page 3 July 01/2010...
  • Page 8 BRP-Powertrain MAINTENANCE MANUAL NOTES Effectivity: 914 Series Edition 2 / Rev. 1 page 4 July 01/2010...

  • Page 9: Table Of Amendments

    01 01 2010 DOA* 12-20-00 01 01 2010 DOA* INTRO 07 01 2010 DOA* 07 01 2010 DOA* 07 01 2010 DOA* 04-00-00 07 01 2010 EASA approved Effectivity: 914 Series Edition 2 / Rev. 1 page 1 July 01/2010...
  • Page 10 BRP-Powertrain MAINTENANCE MANUAL NOTES Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...

  • Page 11: Table Of Contents

    This section describes this maintenance of engine type ROTAX 914 Introduction Series. NOTES: The ROTAX 914 Series includes all engines such as the 914 F and 914 UL. This chapter of the Maintenance Manual contains general and safety Table of contents information concerning the operation of the aircraft engine.
  • Page 12 BRP-Powertrain MAINTENANCE MANUAL NOTES 00-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...

  • Page 13: General Note

    Documentation operation, consult the documentation provided by the aircraft manufac- turer and/or dealer. For additional information on engines, maintenance or parts, you can also contact your nearest authorized ROTAX-aircraft engine distributor. ROTAX Authorized Distributors for Aircraft Engines. ROTAX Distributors See latest Operators Manual or on the Internet at the official Homepage www.rotax-aircraft-engines.com.
  • Page 14 BRP-Powertrain MAINTENANCE MANUAL NOTES 00-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 4 January 01/2010...

  • Page 15: Abbreviations And Terms Used In This Manual

    Dual Capacitor Discharge Ignition Department of Transport Design Organisation Approval EASA European Aviation Safety Agency Installation Manual Engine Control Unit Exhaust Gas Temperature INTRO Introduction Engine Management System Effectivity: 914 Series 00-00-00 Edition 2 / Rev. 0 page 5 January 01/2010...
  • Page 16 Part number TSNP Time Since New Part Time Since Overhaul Volt Visual Flight Rules List of Effective Pages Maintenance Manual shows the serial component number 00-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 6 January 01/2010...

  • Page 17: Conversion Table

    21 13 8.4 5.3 3.3 2.1 1.3 0.8 0.52 1 bar = 100 000 Pa (1000 hPa) 1 bar = 14.5037 lbf/in (psi) 1 lbf/in (psi) = 0.0689 bar 1 in Hg = 33.8638 hPa Effectivity: 914 Series 00-00-00 Edition 2 / Rev. 0 page 7 January 01/2010...
  • Page 18 BRP-Powertrain MAINTENANCE MANUAL NOTES 00-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 8 January 01/2010...

  • Page 19: Safety

    Indicates supplementary information which may be needed to fully complete or understand an instruc- tion. A revision bar outside of the page margin indicates a change to text or graphic. Effectivity: 914 Series 00-00-00 Edition 2 / Rev. 0 page 9 January 01/2010...

  • Page 20: Safety Notice

    BRP-Powertrain MAINTENANCE MANUAL 3.1) Safety notice This information relates to the preparation and use of ROTAX aircraft General note engines and has been utilized safely and effectively by BRP-Powertrain. However, BRP-Powertrain disclaims liability for all damage and/or injuries resulting from the improper use of the contents. BRP-Powertrain strongly...
  • Page 21 Torque wrench If not specified otherwise, the threads are not lubricat- NOTICE WARNUNG tightening ed when fastened. Torque wrench tightening specifications must be strictly adhered to. Effectivity: 914 Series 00-00-00 Edition 2 / Rev. 0 page 11 January 01/2010...

  • Page 22: Instruction

    NOTICE WARNUNG by the engine manufacturer. This is only warranted by use of GENUINE ROTAX spare parts and/or accesso- ries (see IPC) or suitable equivalent in the manufactur- er’s opinion otherwise, any limited warranty by BRP- Powertrain is null and void (see Warranty Conditions).

  • Page 23: Maintenance Concept

    "Line Maintenance". NOTES: This Manual can only be used in combination with Main- tenance Manual I (Line Maintenance), as it builds up on it. Effectivity: 914 Series 00-00-00 Edition 2 / Rev. 0 page 13 January 01/2010...

  • Page 24: Technical Documentation

    The status of the Manuals can be determined with the aid of the table of Status amendments. The first column indicates the revision state. This figure should be compared with the revision provided on ROTAX-WebSite: www.rotax-aircraft-engines.com. Amendments and current versions can be downloaded free of charge.
  • Page 25 This number (e.g. 00277) is of no significance for the con- tent. Effectivity: 914 Series 00-00-00 Edition 2 / Rev. 0 page 15 January 01/2010...

  • Page 26: Use For Intended Purpose

    Bursting off parts can cause serious injuries. Never run the engine without propeller. The engine ROTAX 914 F is intended for use in certified aircraft. In case of doubt the regulations of the national authorities or the respective sportive federations have to be observed.
  • Page 27 Introduction tions“. - NONE Airworthiness Limitations For the ROTAX type engine 914 Series the airworthiness limitations are not applicable. NOTES: Regarding engine limitations see the relevant chapter “lim- its of operation“ in the relevant Operators Manual. Maintenance checks and replacement of defined compon-...
  • Page 28 BRP-Powertrain MAINTENANCE MANUAL NOTES 04-00-00 Effectivity: 914 Series EASA approved Edition 2 / Rev. 1 page 2 July 01/2010...
  • Page 29 In this chapter the maintenance of engine ROTAX 914 Series is Table of contents described. The description is subdivided into sections and description of function of the various systems.
  • Page 30 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...

  • Page 31: Maintenance

    Maintenance of engines and systems requires special knowledge and Special tools special tools. Use only the special tools recommended by BRP-Power- train when disassembling and assembling the engine. Effectivity: 914 Series 05-00-00 Edition 2 / Rev. 0 page 3 January 01/2010...

  • Page 32: Authorized Personnel

    Suitable work environment to prevent contamination or damage to engine parts or modules. Suitable tools and fixtures as outlined in the ROTAX Maintenance Manual. Reasonable and prudent maintenance practices are utilized. And the Requirements of the applicable regulatory authority regarding mainte- nance procedures are met.

  • Page 33: Procedure Notes

    At disassembly of the engine, mark the components as necessary to Disassembly avoid any mix-up. Take care of these marks, don’t ruin them. Effectivity: 914 Series 05-00-00 Edition 2 / Rev. 0 page 5 January 01/2010...

  • Page 34: Trouble Shooting

    In the Operators Manual, possible problems are listed. At the same time, a General notes brief description of the necessary remedial action is given. See chapter 12 in the Operators Manual for engine type 914 (Series). 05-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 6 January 01/2010...

  • Page 35: Consumable Materials

    LOCTITE 222. If necessary contact the manufacturer con- cerning the comparability. In some cases information can be obtained from the local authorized distributors and ser- vice partners for ROTAX engines. NOTES: Respect the manufacturers instruction concerning the cur- ing time and the expire date of the particular surface seal- ing compound.
  • Page 36 (CASTROL ZA 30 or OMV-SOFT SOL). When using solvents, ob- serve the safety regulations for persons and en- vironment. 898570 Screw securing paint 20 ml (0.005 gal seals screws (US)) 05-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 8 January 01/2010...
  • Page 37 0,5 to 1µ, which represents fine process- ing of surfaces. n.a. LOCTITE 7063 Degreasing fluid. For parts cleaning before appl- cation of adhesives and sealants. Effectivity: 914 Series 05-00-00 Edition 2 / Rev. 0 page 9 January 01/2010...
  • Page 38 DIN 980 is positioned towards outside. NOTES: When fitting lock washers, the curved-up ends (1) must Lock washer point towards the screw head or nut. 00144 05-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 10 January 01/2010...
  • Page 39 General Overhaul (TBO) page 4 Time limit page 5 Time limit for rubber parts page 8 Time limit for the coolant page 8 Annual inspection page 8 Effectivity: 914 Series 05-10-00 Edition 2 / Rev. 0 page 1 January 01/2010...
  • Page 40 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...

  • Page 41: Definition Of Terms

    Parts with a limited life cycle must be taken out of opera- tion and overhauled if the specified time span or number of flight hours is reached (whichever comes first). Effectivity: 914 Series 05-10-00 Edition 2 / Rev. 0 page 3...

  • Page 42: General Overhaul (Tbo)

    TBO values for the engine are always shown in operating hours and years. Legal obligation to keep The user must record the operating hours in the engine log book. 05-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 4 January 01/2010...

  • Page 43: Time Limit

    After reaching this time limit, the engine has to be NOTICE WARNUNG this time limit shipped to an authorized ROTAX overhaul facility. For an overhaul, the engine must be removed from the aircraft, be cleaned, preserved and all openings to be closed to prevent entering of contaminants.
  • Page 44 Extension of the TBO is possible and will be specified by a Service Bul- letin (SB) for the respective engine type. For extensions already effective refer to the engine log book or release certificate. 05-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 6 January 01/2010...
  • Page 45 Extension or exceeding of the TBO by 5 % or 6 months is allowed which- Authorized ex- ceeding ever comes first. The shipment to an authorized ROTAX overhaul facility must include the Shipment following: Engine log book. Maintenance records of the engine (i.e. all maintenance check lists, and reports of operation, of maintenance, of findings and of oil analyses).

  • Page 46: Time Limit For Rubber Parts

    A 100 hr. inspection is to be carried out periodically after every 100 hours General note of operation or every 12 months, whichever comes first. See chap. 05-10-00 section: 2). 05-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 8 January 01/2010...
  • Page 47 Scheduled maintenance checks page 3 Unscheduled maintenance checks page 5 Visual inspection page 7 Maintenance schedule procedures page 9 Check list/Maintenance schedule page 11 Maintenance schedule page 13 Effectivity: 914 Series 05-20-00 Edition 2 / Rev. 0 page 1 January 01/2010...
  • Page 48 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...
  • Page 49 - The checks performed at the 25 hr. inspection are the same as for the 100 hr. inspection. This applies both to newly delivered engines and to overhauled engines. Effectivity: 914 Series 05-20-00 Edition 2 / Rev. 0 page 3...
  • Page 50 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 4 January 01/2010...
  • Page 51 Danger of overheating Radiators, Lines check for discoloration - and cracks. undamaged and runs true Engine damage, unusual vibrations carry out dynamically balancing Propeller including verification of propeller track. Effectivity: 914 Series 05-20-00 Edition 2 / Rev. 0 page 5 January 01/2010...
  • Page 52 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 6 January 01/2010...
  • Page 53 Surface damage, secure seating, locking wire, securing paint and other Screws and Nuts visually evident damage. Filters and screens must be inspected for contamination and potential Filter blockages, cleaned and replaced as required. Effectivity: 914 Series 05-20-00 Edition 2 / Rev. 0 page 7 January 01/2010...
  • Page 54 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 8 January 01/2010...
  • Page 55 Replacement of equipment (e.g. fuel pump, governor..) and execution of Replacement of equipment SB (LTA) must be entered in the engine log book, stating S/N, TSN and date. Effectivity: 914 Series 05-20-00 Edition 2 / Rev. 0 page 9 January 01/2010...
  • Page 56 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 10 January 01/2010...
  • Page 57 ENGINE Engine type Engine S/N TSN (time since new) TSO (time since overhaul) Used operating fluids: coolant - mixture ratio fuel AIRCRAFT OPERATOR Name Contact Address Telephone/Fax/E-mail Effectivity: 914 Series 05-20-00 Edition 2 / Rev. 0 page 11 January 01/2010...
  • Page 58 Maintenance workshop Address Telephone/Fax/E-mail Certificate This check is applicable (circle 25 hr. 50 hr. 100 hr. 200 hr. 600 hr. Next check due at: __________________________________hr. (TS________) (engine hr.) 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 12 January 01/2010...
  • Page 59 Verify coolant level, replenish as necessary. Inspect line from expansion tank to overflow bottle for damage, leakage and clear passage. Inspect venting bore in cap of overflow bottle for clear passage. Effectivity: 914 Series 05-20-00 Edition 2 / Rev. 0 page 13 January 01/2010...
  • Page 60 Inspect safety wiring, replace as necessary. 6.) Engine cleaning Engine cleaning 12-20-00 sec. 1) 7.) Checking the air filter Checking the air filter. 12-20-00 sec. 2) 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 14 January 01/2010...
  • Page 61 16.2) essary. Check electrode gab and adjust as necessary. Replace as required. Replace spark plugs. 12-20-00 sec. 16.2) use of leaded fuel more than 30% of operation. Effectivity: 914 Series 05-20-00 Edition 2 / Rev. 0 page 15 January 01/2010...
  • Page 62 Operators Manual and SI-914-019, latest edition. 13.6) In the case more than 30% of operation with leaded fuel e.g.: AVGAS 100 LL 12-20-00 sec. 13.2) SI-914-019 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 16 January 01/2010...
  • Page 63 14.4) 19.) Engine test run Observe the safety instructions! Start the engine and run to operating temperature. 12-20-00 Limits see Operators Manual 914 series. sec. 8) Ignition check at _____ rpm engine speed. Speed drop without ignition circuit: A (Off)___________rpm...
  • Page 64 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 18 January 01/2010...
  • Page 65 Oil pressure below minimum value page 15 Oil specification not respected page 17 Spark plug not in accordance with specification page 19 Hard to turn over page 20 Reporting page 27 Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 1 January 01/2010...
  • Page 66 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...

  • Page 67: Engine Check After Propeller Strike Incidents

    Observe the manufacturers instructions for the governor, vacuum pump and propeller. Inspect the crankshaft on the power take off side for out-of-roundness. See chapter 72-00-00 of the Heavy Maintenance Manual. Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 3...

  • Page 68: Propeller Gearbox Without Integrated Overload

    Inspect the crankshaft on the power take off side for out-of-roundness. Propeller shock load - Inspection of crankshaft distortion on installed crank- shaft. See chapter 72-00-00 of the Heavy Maintenance Manual. 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 4 January 01/2010...

  • Page 69: Checking Of The Overload Clutch

    NOTE: Because of difficult measurement of the slipping torque the breakaway torque is measured. Fig. 1 08054 Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 5 January 01/2010...
  • Page 70 If the value is greater or smaller than the limit value, the overload clutch must be inspected, repaired or overhauled in accordance with the BRP- Powertrain instructions for continued airworthiness. Step Procedure Release the crankshaft, see chap. 12-20-00 section: 7). 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 6 January 01/2010...

  • Page 71: Examination After Engine Failure

    The fault needs to be located and correct- Unintended engine stoppage by seizing part possible cause Oil system oil pressure too low or no oil pressure oil shortage contamination incorrect venting Oil pump defect Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 7 January 01/2010...
  • Page 72 Cooling system not enough coolant bad venting Return valve is not working malfunction Radiator contaminated Radiator cap leaking Pressure relief valve malfunction Water pump malfunction 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 8 January 01/2010...

  • Page 73: Returning Engine To Service After Submerging

    Flying in areas with extreme climatic conditions or in extreme altitudes requires adjustment of the carburetor jetting and of the cooling system. To do this, it is necessary to contact the aircraft manufacturer and an autho- rized ROTAX distributor. Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 9...

  • Page 74: Exceeding Of Max. Admissible Engine Rpm

    BRP-Powertrain instructions for continued airworthiness. Check that the push-rods are straight. Replace the crankshaft. Inspect all systems for correct functioning. Detailed inspection of affected engine components. 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 10 January 01/2010...

  • Page 75: Exceeding Of Max. Cylinder Head Temperature

    Graphic Proceed as instructed in table 2 180 °C Proceed as (356 °F) instructed in table 1 Operating limit (See Operators Manual 914 Series) 30 min. Time Fig. 2 07140 Table 1. Exceeding up to 180 °C (356 °F) Max. temperature exceeded up to 180 °C (356 °F) - briefly...
  • Page 76 Check compression by carrying out a differential pressure check. All cylinder heads and cylinders must be removed and subjected to a detailed check including hardness testing. See chap. 72-00-00 in the Heavy Maintenance Manual. 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 12 January 01/2010...

  • Page 77: Exceeding The Max. Permissible Oil Tempera

    Proceed as instructed 160 °C in table 4 (320 °F) Proceed as instructed in table 3 Operating limit (See Operators Manual 914 Series) 15 min. Time Fig. 3 07140 Table 3. Exceeding up to max. 160 °C Excess temperature up to max. 160 °C (320 °F) max. 15 min.
  • Page 78 Carry out detailed inspection of the affected engine components. Inspect the whole oil system (oil cooler, oil lines) must be inspected. Cut oil filter housing and inspect filter mat for foreign matter. 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 14 January 01/2010...

  • Page 79: Oil Pressure Below Minimum Value

    Overview and instruction Graphic Oil pressure Proceed as Operating limit (minimum value) 0.5 bar instructed in (See Operators Manual 914 Series) (7.25 psi) table 5 Proceed as instructed in table 6 1 min. Time Fig. 4...
  • Page 80 Inspect pressure sensor. Inspect indicating instrument to specifications of the manufacturer, replace as required. Inspect crankcase pressure (See Installation Manual 914 Series, latest is- sue.) If no cause for the low oil pressure is found after the above checks, carry out an oil change.

  • Page 81: Oil Specification Not Respected

    Remove the lowest positioned banjo screw (1) (banjo bolt, plug screw or screw socket) and drain the remaining oil from the crankcase. Screw in ban- jo bolt or plug screw. Tightening torque see Installation Manual 914 Series. Replace oil filter. Drain oil completely from oil cooler.
  • Page 82 Remove the lowest positioned banjo screw (1) (banjo bolt, plug screw or screw socket) and drain the remaining oil from the crankcase. Screw in banjo bolt or plug screw. Tightening torque see Installation Manual 914 Series. Replace oil filter. Drain oil completely from oil cooler.

  • Page 83: Spark Plug Not In Accordance With Specification

    If by error any of the spark plugs were installed which are not according General note to specification of the engine manufacturer and/or not genuine ROTAX parts, the following verification will be necessary. Spark plug not in accordance with specification...

  • Page 84: Hard To Turn Over

    Measuring torque required to turn crank drive Graphic Länge L (m) / length L in m Kraft F in N / force F in N Fig. 6 05694 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 20 January 01/2010...
  • Page 85 Check wiring. See 12-20-00 section: 16.1). NOTE: If no mechanical damage is detected during the visual inspection, check the boost pressure control. See chap. 76-00-00 of the Heavy Maintenance Manual Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 21 January 01/2010...
  • Page 86 Check wiring. See 12-20-00 section: 16.1). NOTE: If no mechanical damage is detected during the visual in- spection, check the boost pressure control. See chap. 76-00-00 of the Heavy Maintenance Manual 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 22 January 01/2010...
  • Page 87 Red boost lamp lights up continuously If the value was exceeded for more than 1 min. Step Procedure Inspection of the Pistons Cylinders Valves Cylinder heads is necessary. Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 23 January 01/2010...
  • Page 88 Check compression pressure. See chap. 12-20-00 section: 5). Red boost lamp lights is flashing Limit exceeded for over 3 min. Step Procedure Inspection of the Pistons Cylinders Valves Cylinder heads is necessary. 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 24 January 01/2010...
  • Page 89 Check wiring. See 12-20-00 section: 16.1). NOTE: If no mechanical damage is detected during the visual inspection, check the boost pressure control. See chap. 76-00-00 of the Heavy Maintenance Manual. Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 25 January 01/2010...
  • Page 90 Check wiring. See chap. 12-20-00 section: 16.1). NOTE: If no mechanical damage is detected during the visual inspection, check the boost pressure control. See chap. 76-00-00 of the Heavy Maintenance Manual. 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 26 January 01/2010...

  • Page 91: Reporting

    ROTAX distributor. NOTES: The form is also available from the official ROTAX AIR- CRAFT ENGINES Homepage in electronic version. www.rotax-aircraft-engines.com Register: Document type/Diverses...
  • Page 92 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 28 January 01/2010...
  • Page 93 BRP-Powertrain MAINTENANCE MANUAL Form Effectivity: 914 Series 05-50-00 Edition 2 / Rev. 0 page 29 January 01/2010...
  • Page 94 BRP-Powertrain MAINTENANCE MANUAL NOTES 05-50-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 30 January 01/2010...
  • Page 95 This chapter of the Maintenance Manual contains the most common Table of contents maintenance procedures. Subject Chapter Introduction 12-00-00 Replenishing operating fluids 12-10-00 Scheduled maintenance 12-20-00 Effectivity: 914 Series 12-00-00 Edition 2 / Rev. 0 page 1 January 01/2010...
  • Page 96 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-00-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...
  • Page 97 Subject Page General note page 3 Fluid capacities page 5 Cooling system page 7 Coolant check/replenish page 7 Lubrication system page 9 Oil level check/replenish page 9 Effectivity: 914 Series 12-10-00 Edition 2 / Rev. 0 page 1 January 01/2010...
  • Page 98 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...
  • Page 99 MAINTENANCE MANUAL 1) General Servicing points on the engine Part Function Expansion tank Radiator cap Oil filter Oil tank Oil tank cover Oil dipstick Fig. 1 08578 Effectivity: 914 Series 12-10-00 Edition 2 / Rev. 0 page 3 January 01/2010...
  • Page 100 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 4 January 01/2010...

  • Page 101: General Note

    MIN mark corresponds to 2.5 l Refer to the corresponding chapter (0.66 US gal.) and MAX mark in the Installation Manual corresponds to 3.0 l (0.8 US gal.) Effectivity: 914 Series 12-10-00 Edition 2 / Rev. 0 page 5 January 01/2010...
  • Page 102 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 6 January 01/2010...

  • Page 103: Cooling System

    Engine test run. Check for leaks. Switch the engine OFF. Allow the engine to cool down. Check the coolant level and top up with coolant as required. Effectivity: 914 Series 12-10-00 Edition 2 / Rev. 0 page 7 January 01/2010...
  • Page 104 BRP-Powertrain MAINTENANCE MANUAL Coolant check/replenish Graphic Part Function Radiator cap Expansion tank Fig. 2 08523 12-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 8 January 01/2010...

  • Page 105: Lubrication System

    See also chap. 10.3.3) in the Operators Manual 914 Series. This process is completed when air flows back to the oil tank. This air flow can be perceived as a murmur (gurgling) when the oil tank cover (1) of the oil tank is removed.
  • Page 106 Check for leaks. Check the oil level and top up with oil as required. Oil level check/Replenish Graphic Part Function Oil tank cover Oil dipstick Fig. 3 08524 12-10-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 10 January 01/2010...
  • Page 107 Idle speed check page 44 Operating range check page 45 Checking of the float chamber page 47 Idle speed adjustment page 49 Checking the carburetor actuation page 50 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 1 January 01/2010...
  • Page 108 69 Installation of spark plug page 71 Propeller gearbox page 73 Checking the friction torque in free rotation page 73 Checking the propeller gearbox page 75 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 2 January 01/2010...

  • Page 109: Engine Cleaning

    After each cleaning procedure, dry all electrical components such as After each clean- - Battery - Ignition unit - Spark plug connector - Clamp connections etc. by use of compressed air to prevent leakage current. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 3 January 01/2010...
  • Page 110 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 4 January 01/2010...

  • Page 111: Checking The Air Filter

    Spray K&N filter cleaner onto filter surface and leave to soak for approx. 10 min. (B). Rinse air filter with low pressure water from inside to outside and let element dry naturally (C). Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 5...
  • Page 112 Each filter pleat must be sprayed with oil. After 5 to 10 min. the filter will be soaked with oil, noticeable by the uniform red coloring. Fig. 2 08526 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 6 January 01/2010...

  • Page 113: Replacing The Dry Air Filter

    Attach new air filter, free of grease, at connection fac- NOTICE WARNUNG es, and wire-secure against loss. Only use dry type air filters which are specified by the aircraft manufac- Graphic turer and from ROTAX. Part Function Air filter Safety wire Carburetor Fig.
  • Page 114 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 8 January 01/2010...

  • Page 115: Visual Inspection

    Only fitted on engines with airbox of older model. Condensation trap There is a condensation trap between the airbox and the pressure sen- sor. It must be replaced when it fills with condensation. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 9 January 01/2010...
  • Page 116 - Airbox - fuel pressure regulator - Airbox - pressure sensor - Airbox - reversing valve - Reversing valve - 2x Float chamber ventilation Fig. 4 00048 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 10 January 01/2010...

  • Page 117: Checking The Engine Suspension

    For more detailed information about different types of corrosion and corresponding methods for dealing with corrosion refer to the FAA Advisory Circular AC 43.13. See chapter “AC 43.13-1B Maintenance and Repair“. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 11...
  • Page 118 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 12 January 01/2010...

  • Page 119: Leakage Check

    NOTICE WARNUNG comply with the specified torque! On steel fuel lines in the area at connections (fittings) (2) a detailed visual inspection is necessary. See Fig. 5. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 13 January 01/2010...
  • Page 120 Check all hoses, particularly in the area of the hose clamps and hose con- Hose clamps, kinks nections, for porosity, damage and kinks. If damage is detected, replace hose immediately. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 14 January 01/2010...

  • Page 121: Checking The Compression

    If the value is over 25% inspection, repair or overhaul must be carried out in accordance with the BRP-Powertrain instructions for continued airwor- thiness. - Detailed inspection of affected engine components. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 15...
  • Page 122 BRP-Powertrain MAINTENANCE MANUAL Checking the compression. Graphic Part Function Adaptor Manometer/Test gauges set Orifice jet Compressor Fig. 6 08529 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 16 January 01/2010...
  • Page 123 BRP-Powertrain instructions for contin- ued airworthiness. - Detailed inspection of affected engine components. Compression check for fault-tracing Graphic Part Function Compression tester Fig. 7 08651 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 17 January 01/2010...
  • Page 124 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 18 January 01/2010...

  • Page 125: Checking The V-Belt Tension

    M8 (2) with tightening torque 22 Nm (195 in.lb). Checking the V-belt tension Graphic Part Function Hex. screw M10 2, 3 Allen screw M8 Fig. 8 00353 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 19 January 01/2010...
  • Page 126 BRP-Powertrain MAINTENANCE MANUAL Inspect V-belt tension as per drawing below. Checking the V- belt tension Fig. 9 00354 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 20 January 01/2010...

  • Page 127: Locking The Crankshaft

    15 Nm (133 in.lb). To check, use wrench 24 mm (15/16 inch.) to rotate the crankshaft at hex. screw (7) on the magneto side. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0...
  • Page 128 BRP-Powertrain MAINTENANCE MANUAL Locking the crankshaft Graphic Part Function Plug screw M8x20 Thread bolt Trigger boss Trigger coils Crankshaft Hex. screw M16x1.5x40 Fig. 10 08530,08531 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 22 January 01/2010...

  • Page 129: Checking The Wastegate Flap

    Manual. Check the wastegate lever (3) for free movement. NOTES: If it does not move freely, lubricate the axle (lubrication hole) of the wastegate with LOCTITE Anti-Seize 8151, ROTAX part no. 297434. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0...
  • Page 130 BRP-Powertrain MAINTENANCE MANUAL Graphic Part Function Wastegate actuation Adjusting screw Wastegate lever Lubrication hole Fig. 11 00147 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 24 January 01/2010...

  • Page 131: Inspection Of The Fuel Filter In The Airframe

    See chap. 73-00-00 Heavy Maintenance Manual. The fuel pump must not be diassembled, as there are NOTICE WARNUNG no spare parts available. If necessary, replace the complete pump. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 25 January 01/2010...
  • Page 132 BRP-Powertrain MAINTENANCE MANUAL Inspection of the fuel filter Graphic MAIN Part Function Fuel supply line Fuel pumps Gascolater Fine filter (fuel pumps) Fig. 12 00103,00157 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 26 January 01/2010...

  • Page 133: Test Run Of Engine

    This is necessary to prevent steam locks in the cooling and fuel system after shut-down. Shut engine down. NOTE: On switching off the engine switch off ignition and withdraw the ignition key. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 27 January 01/2010...
  • Page 134 If the oil filter has been replaced, re-tighten by hand af- NOTICE WARNUNG ter the trial run on a cold engine. Inspect the engine for oil, fuel or coolant leaks and repair as necessary. Check of leaks 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 28 January 01/2010...

  • Page 135: Cooling System

    BRP-Powertrain MAINTENANCE MANUAL 11) Cooling system 11.1) Checking the cooling system Overview Part Function Coolant lines Water pump Expansion tank Radiator cap with gasket Fig. 13 08579 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 29 January 01/2010...

  • Page 136: Replacing The Coolant

    If the radiator is located below the engine, also detach the lowest positioned coolant hose. Fit attachment screw (stainless steel) along with a new sealing ring. Tighten to 10 Nm (90 in.lb). 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 30 January 01/2010...
  • Page 137 NOTES: Run the engine briefly and replenish with clean coolant as required. Replace the coolant Graphic Part Function Attachment screw (stainless steel) Water pump Fig. 14 08533 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 31 January 01/2010...

  • Page 138: Flushing The Cooling System

    Refill newly mixed coolant into the expansion tank (highest point of the cooling system). See chap. 12-10-00 section: 3.1). Fit radiator cap. NOTES: Run the engine for a minute and replenish coolant as required. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 32 January 01/2010...

  • Page 139: Expansion Tank, Radiator Cap

    Expansion tank Carry out visual inspection of tank for damage and scuffing marks. Checking Expansion tank, radiator cap. Graphic Part Function Pressure relief valve Return valve Rubber seal Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 33 January 01/2010...
  • Page 140 BRP-Powertrain MAINTENANCE MANUAL Part Function Pressure spring Connection to overflow bottle Opening pressure of the radiator cap Sealing surface Tube connections Fig. 15 08534,07620 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 34 January 01/2010...

  • Page 141: Overflow Bottle

    11.6) Accessories (including radiator, radiator hoses, hose clamps, cooling air ducts) General note Equipment is to be inspected in accordance with the NOTICE WARNUNG Maintenance Manual of the aircraft manufacturer. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 35 January 01/2010...
  • Page 142 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 36 January 01/2010...

  • Page 143: Fuel System

    First the mechanical synchronization and then only the pneumatic synchronization has already been carried out. Synchronization at idle speed Graphic Part Function Resonator hose Compensating tube Fig. 17 05491 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 37 January 01/2010...

  • Page 144: Mechanical Synchronization

    As soon as the two carburetor bowden cables are installed (throttle lever in cockpit in idle position), you must check that the idle speed adjustment screw (2) rests fully on the idle stop (3) without pressure. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 38 January 01/2010...
  • Page 145 Mechanical synchronization Graphic Part Function Throttle valve lever Adjustment screw Idle stop position Cable fixation Return spring Idle mixture screw Idle adjustment Plug screw M3.5x5 Fig. 18 08538 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 39 January 01/2010...

  • Page 146: Pneumatic Synchronization

    Using the push on angular tube (4) and compensating tube (2) install a flexible rubber hose (5) leading to the vacuum gauge (1). Option 1 Graphic Part Function Vacuum gauge Compensations tube Clamp Angular tube Rubber hose Fig. 19 08652 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 40 January 01/2010...
  • Page 147 (6) leading to the vacuum gauge (1). Option 2 Graphic Part Function Vacuum gauge Compensating tube Tube Clamp Angular tube Rubber hose Fig. 20 08659 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 41 January 01/2010...
  • Page 148 After synchronization tighten the screw M6x6 (1) with LOCTITE 221. Option 3 Graphic Part Function Hex. screw M6x6 Intake manifold Compensating tube Tube Fig. 21 08660 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 42 January 01/2010...
  • Page 149 After synchronization tighten the screw M6x6 (4) with LOCTITE 221. Option 4 Graphic Part Function Clamping pliers Tube Compensation tube Screw M6x6 Hose nipple Sealing ring Fig. 22 08661 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 43 January 01/2010...

  • Page 150: Idle Speed Check

    If an unsatisfactory result is achieved, inspect the idle jets for contamina- No satisfactory result tion and clean if necessary. Also check for translucent, jelly-like contamination. In- NOTICE WARNUNG spect for free passage. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 44 January 01/2010...

  • Page 151: Operating Range Check

    Final idle speed adjustment may be required by resetting the idle speed adjust- ment screws (2). Equal adjustment must be made on both carburetors. Any major adjustments required necessitate replaced verification of all param- eters mentioned in this procedure. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 45 January 01/2010...
  • Page 152 - Refit the screw plug M3.5 (3) and hex. screws M6x6 with gasket (pos. 1 Fig. 21). Inspect operating range/idle speed Graphic Part Function Idle adjustment Idle speed adjustment screw Screw plug M3.5x5 Idle mixture screw Fig. 23 08682 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 46 January 01/2010...

  • Page 153: Checking Of The Float Chamber

    Step Procedure Assembly of the float chamber should be carried out analogously the disas- sembly. Adjust with the idle speed adjustment. See chap. 12-20-00 section: 12.5). Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 47 January 01/2010...
  • Page 154 BRP-Powertrain MAINTENANCE MANUAL Float chamber Graphic Part Function Drip tray Attachment screw Float chamber Gasket Float Fig. 24 08681 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 48 January 01/2010...

  • Page 155: Idle Speed Adjustment

    (2) and if necessary, by slightly turning the idle mixture screw again. NOTES: Turning the idle mixture control screw in clockwise direction results in a leaner mixture and turning counter clockwise in a richer mixture. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 49 January 01/2010...

  • Page 156: Checking The Carburetor Actuation

    Adjust throttle cables to a clearance of 1mm (0.04 in). Inspect and lubricate linkage on carburetor and carburetor joints with engine oil. Inspect return springs (3) and inspect engagement holes for wear. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 50 January 01/2010...
  • Page 157 BRP-Powertrain MAINTENANCE MANUAL Checking the carburetor actuation Graphic ~1 mm Part Function Connection for throttle valve Connection for choke actuation Return springs Fig. 25 02480 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 51 January 01/2010...
  • Page 158 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 52 January 01/2010...
  • Page 159 MAINTENANCE MANUAL 13) Lubrication 13.1) General Overview to oil pump back from engine Part Function Oil tank Drain screw M12x12 Oil cooler (optional) Oil filter Fig. 26 08238,08580 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 53 January 01/2010...
  • Page 160 Oil lines and other oil connections are not normally removed. Oil lines, Oil connections 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 54 January 01/2010...

  • Page 161: Oil Change

    (approx. 20 turns) to completely refill the entire oil circuit. Compressed air must not be used to blow through the oil system (or oil lines, oil pump housing, oil bores in the housing). Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 55...

  • Page 162: Oil Filter Replacement

    To ensure correct functioning of the oil circuit and the NOTICE WARNUNG forced flow lubrication, use genuine ROTAX oil filter only. Only these filters will ensure correct pressure in the by-pass valve. At every oil change, unscrew the oil filter and cut open using special tool taking care not to produce chips.

  • Page 163: Install Oil Filter

    Tighten oil filter with a 3/4 turn (270°). Inspect all systems for correct function. Install oil filter. Graphic Part Function Contact surface Oil pump housing Gasket Oil filter Fig. 28 08550 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 57 January 01/2010...

  • Page 164: Inspection Of The Oil Filter Insert

    Unclear findings Step Procedure Flush the oil circuit. Fit a new oil filter. Engine test run. See chap. 12-20-00 section: 10). Inspect the oil filter once more. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 58 January 01/2010...
  • Page 165 Oil filter Graphic to bearings from oil pump Part Function Filter housing Filter cover Gasket ring Filter element Filter mat Fig. 29 08427,00181 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 59 January 01/2010...

  • Page 166: Cleaning The Oil Tank

    Fit drain screw (1) M12x12 with a new gasket ring. Tighten to 25 Nm (18.5 ft.lb). Safety wire. Reassemble the oil tank by following the same steps in reverse order. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 60 January 01/2010...
  • Page 167 MAINTENANCE MANUAL Cleaning the oil tank Graphic Part Function Drain screw Profile clamp Oil tank cover O-ring Baffle insert Partition Gasket ring Oil tank Fig. 30 05556 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 61 January 01/2010...

  • Page 168: Purging The Oil System

    Purging the oil system is necessary: Procedure - before each first start up - after reinstallation (e.g. after overhaul) - after maintenance work during which the lubrication system was opened and voided. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 62 January 01/2010...

  • Page 169: Inspecting The Magnetic Plug

    If the oil circuit is contaminated, replace the oil cooler NOTICE WARNUNG and flush the oil circuit. See chap. 12-20-00 section: 15). Detailed inspection of affected engine components. Trace the cause and remedy. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 63 January 01/2010...

  • Page 170: Installation Of The Magnetic Plug

    Clean the magnetic plug. Refit the magnetic plug. Tightening torque 25 Nm (18.5 ft.lb). Safety wire the plug. Inspect all systems for correct function. Detailed inspection of affected engine components. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 64 January 01/2010...

  • Page 171: Flushing The Oil Circuit

    Purging of the oil system, see chap. 12-20-00 section: 13.7). Equipment Inspect all the equipment in accordance with the Main- NOTICE WARNUNG tenance Manual of the aircraft manufacturer. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 65 January 01/2010...
  • Page 172 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 66 January 01/2010...

  • Page 173: Electric System

    MAINTENANCE MANUAL 16) Electric system Overview Part Function Spark plug connectors Dual ignition coil Ignition cable Electronic module Plug connectors Grounding cable Protection hose Fig. 32 08552,08553 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 67 January 01/2010...

  • Page 174: Check Of Wiring

    (TCU), 2x pressure sensors, tacho-generator, throttle potentiometer, airbox temperature sensor, servo motor, disconnector, control valve and the two lamps for corrosion or damage and tight fit and replace as necessary. 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 68 January 01/2010...

  • Page 175: Inspection And Replacement Of Spark Plugs

    Remove the spark plugs and store them according to cylinder and posi- Remove tion. Always replace both spark plugs of a cylinder and do not inter- change spark plugs between cylinders. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 69...
  • Page 176 Indicates the following: melt beads mixture too lean leaking valves 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 70 January 01/2010...

  • Page 177: Installation Of Spark Plug

    20 Nm (177 in.lb) on the cold engine. spark plugs Graphic Electrode gap Part Function Ground electrode Head area Fig. 33 00086 Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 71 January 01/2010...
  • Page 178 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 72 January 01/2010...

  • Page 179: Propeller Gearbox

    See calculation example. If the above mentioned friction torque is not achieved, in- NOTICE spect, repair or overhaul the gearbox in accordance with the ROTAX instructions for continued airworthiness. Remove crankshaft locking pin. See chap. 12-20-00 section: Effectivity: 914 Series 12-20-00 Edition 2 / Rev.
  • Page 180 BRP-Powertrain MAINTENANCE MANUAL Checking the friction torque. Graphic Fig. 34 05694 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 74 January 01/2010...

  • Page 181: Checking The Propeller Gearbox

    Detailed inspection of the affected gearbox components in accordance chap. 72-00-00 in the Heavy Maintenance Manual. Crack testing of the propeller shaft is not normally planned, but can be carried out if cracks are suspected. Effectivity: 914 Series 12-20-00 Edition 2 / Rev. 0 page 75...
  • Page 182 BRP-Powertrain MAINTENANCE MANUAL NOTES 12-20-00 Effectivity: 914 Series Edition 2 / Rev. 0 page 76 January 01/2010...
  • Page 184 Motornummer / Engine serial no. Flugzeugtype / Type of aircraft Flugzeugkennzeichen / Aircraft registration no. ROTAX® Vertriebspartner ROTAX® authorized distributor www.rotax-aircraft-engines.com ® and TM are trademarks of BRP-Powertrain GmbH & Co. KG. © 2010 BRP-Powertrain GmbH & Co. KG. All rights reserved.

This manual is also suitable for:

Mml-914

Table of Contents

Save PDF