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Aircraft Alternator

Maintenance Manual

24-30-01

ES1031

Page: 2-6 Rev.

A: 11 Aug. 2021

© 2021 - Hartzell Engine Technologies - All rights reserved

Figure 2.7 ES-10024B-4 Dimensions

7.61

1.978

2.52

3.00

K 6.290 STD

Figure 2.8 ES-10024B-5 Dimensions

9.393

2.44

2.266

1.883

J10 2.31 PITCH Ø

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Summary of Contents for ES-10024

Page 1: ...0 01 Rev A 11 Aug 2021 Page i 2021 Hartzell Engine Technologies All rights reserved AIRCRAFT ALTERNATOR MAINTENANCE MANUAL P N ES1031 ALTERNATOR MODELS ES 10024B 1 ES 10024B 5LS ES 10024B 2 ES 10024 ES 10024B 3 ALV 9610 ES 10024B 4 ES 6024D ES 10024B 5 ...

Page 2: ... reserved Copyright 2021 Hartzell Engine Technologies LLC All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of Hartzell Engine Technologies LLC ...

Page 3: ...sure 1 3 1 6 Abbreviations 1 4 1 7 Definitions 1 4 1 8 Disposal 1 6 1 9 Model Identification 1 6 1 10 Serial number Identification 1 6 1 11 Warranties 1 6 CHAPTER 2 DESCRIPTION OF OPERATION 2 1 2 1 Description 2 1 A General 2 1 B Operational Data 2 2 C Dimensions 2 2 2 2 Basic Component Description 2 9 2 3 Technical Purpose 2 9 2 4 Physical Detail 2 10 2 5 Theory of Operation 2 11 2 6 Self Excitat...

Page 4: ...der Brushes and Springs 5 3 G Pulley Run Out Check 5 4 5 3 Alternator Bench Testing 5 4 A Alternator Output Test Conditions 5 4 B Ventilation 5 4 C Order of Tests 5 4 D Test Setup 5 5 5 4 Alternator Self Excitation Test 5 5LS only 5 7 CHAPTER 6 MAINTENANCE 6 1 6 1 General 6 1 6 2 Bi Annual Maintenance 6 1 6 3 Torque Information 6 2 6 4 Alternator Drive Coupling Inspection Maintenance 6 2 6 5 Alter...

Page 5: ... Wire 6 13 6 13 Applying Safety Cable 6 13 6 14 Installation on the Aircraft Gear Drive 6 13 6 15 Installation on the Aircraft Belt Drive 6 13 6 16 Special Conditions 6 14 A Sudden Engine Stoppage gear drive 6 14 B Sudden Engine Stoppage belt drive 6 14 C Lightning Strike 6 15 6 17 Storage and Shelf Life 6 16 A Storage 6 16 B Shelf Life 6 16 REFERENCES A PP2002 AIRCRAFT ALTERNATOR OVERHAUL MANUAL ...

Page 6: ...h com Fax 1 334 386 5450 Web www Hartzell aero contact PlanePower is a trademark of Hartzell Engine Technologies LLC WARNING People who fly should recognize that there are various types of risks are involved in this activity and they should take all precautions to minimize them since they cannot be eliminated entirely The alternator is an important component of the aircraft An alternator failure c...

Page 7: ...Aircraft Alternator Maintenance Manual ES1031 24 30 01 Rev A 11 Aug 2021 Page vii 2021 Hartzell Engine Technologies All rights reserved INTENTIONALLY LEFT BLANK ...

Page 8: ...t to lbf ft 1 6 Para 1 9 change ES 10024B to ES 10024B 1 thru 5 and 5LS 2 2 Update Operational Data and Dimensions paragraphs 2 3 Update dimensions illustration Figure 2 3 2 4 thru 2 7 Add basic dimension illustrations for ES10024B 1 2 3 4 5 5LS model alternators 2 8 Add basic dimension illustration for 6024D alternator 2 11 Update Figure 2 12 to show alternator exploded view typical 2 12 Table 2 ...

Page 9: ...aft Alternator Maintenance Manual ES1031 24 30 01 Rev A 11 Aug 2021 Page ix 2021 Hartzell Engine Technologies All rights reserved RECORD OF REVISIONS Revision Level Issue Date Page s Revised Description Date ...

Page 10: ...ernator Maintenance Manual 24 30 01 ES1031 Page x Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved RECORD OF TEMPORARY REVISIONS Temporary Rev Letter Page Number Date Removed Issue Date By By ...

Page 11: ...HE MINIMUM REQUIRED TO MEET CONTINUED AIRWORTHINESS BUT MAY BE SUPERSEDED BY MORE STRINGENT REQUIREMENTS AS PUBLISHED BY THE FAA AIRCRAFT ROTORCRAFT OR OTHER MANUFACTURERS THAT USE THESE COMPONENTS IN THEIR APPLICATIONS FAILURE TO OBSERVE THESE LIMITATIONS MAY COMPROMISE THE COMPONENT OR THE APPLICATION IT IS USED IN A 2 Airworthiness Limitations Statement A The Airworthiness Limitations section i...

Page 12: ...apter Such limits require replacement of the identified parts after a specified number of cycles or hours of use B Additions of or changes to any life limit for alternator components will be noted in theAirworthiness Limitation Revision Log C Life Limits 1 Alternator models and their component parts affected by this manual currently do not have any life limited parts 2 There are no new or addition...

Page 13: ...damages directly or indirectly resulting from the unauthorized use of this manual for other than its stated purposes The liability for use of the authorized data herein for the maintenance or return to service is limited to the specific terms and conditions stated under the applicable Limited Warranty in effect for each piece part component assembly or whole unit sold by HET Because of the numerou...

Page 14: ...w PlanePower aero Revisions will be tracked and recorded in the Record of Revisions section of this document 1 3 How to use the manual A Make sure the manual contains information applicable to your aircraft engine or replacement alternator Look for the model number on the Title Page and if applicable the part number of the replacement or superseded component B It is imperative that you read unders...

Page 15: ...meter V Volt C Degree Celsius Ω Ohm W Watt Hz Hertz m Meter cm Centimeter kg Kilogram B U S Units ft Foot in Inch lb Pound lbf in Pound force inch lbf ft Pound force foot 0 F Degree Fahrenheit C Multiplying Prefixes μ Micro m Milli k Kilo M Mega p Pico Aircraft Alternator Maintenance Manual ES1031 24 30 01 Rev A 11 Aug 2021 Page 1 3 2021 Hartzell Engine Technologies All rights reserved ...

Page 16: ...erials procedures or limitations which must be followed without deviation to avoid injury to the technician or other persons CAUTIONS place immediate attention to use of tools and procedures which must be followed to avoid injury damage to equipment and or facilities Notes call attention to procedures which make the job easier B The following are basic definitions of the terms used herein as relat...

Page 17: ...d as 360 degrees of phase Phase can also be an expression of relative displacement between or among waves having the same frequency In our case the alternator is three phase or 120 degrees separation POLARIZE To induce polarization i e the partial or complete polar separation of positive and negative elec tric charge in an electrical system REAR HOUSING Part of the external housing which contains ...

Page 18: ... A Hartzell Engine Technologies LLC HET offers a Limited warranty with each new overhauled or rebuilt Alternator assembly or component parts it sells through it s distribution system NO expressed or implied warranty exists when repairing overhauling or rebuilding any assembly or component using this manual except as it may apply to any new HET replacement part purchased If you suspect that any war...

Page 19: ...and the vibration and extreme temperature changes encountered in aircraft applications Basic features are identified in Fig 2 1 thru 2 10 below 1 Through Bolts 4 ea 5 Aux Terminal 2 Field Terminal 6 Output Terminal 3 Ground Terminal 7 Flexible Cooling Duct ALV 9610 only 4 Brush Assembly Figure 2 1 Typical Front View Figure 2 2 Typical Rear View 1 2 3 4 5 6 7 Aircraft Alternator Maintenance Manual ...

Page 20: ...m Operating Altitude 31 900 feet MSL 9 723 meters MSL Weight See Table 2 1 this chapter C Dimensions 1 The basic dimensions of each alternator are shown in Fig 2 3 thru 2 10 2 The dimensions of the ALV 9610 alternator are the same for the ES 10024 alternator with the exception of the flex cooling duct Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 2 2 Rev A 11 Aug 2021 2021 Hartzell E...

Page 21: ... 9610 Dimensions 8 63 4 122 4 118 50 81 2 44 669 1 42 2 00 5 25 25 0 90 0 4 00 5 25 4 122 Aircraft Alternator Maintenance Manual ES1031 24 30 01 Rev A 11 Aug 2021 Page 2 3 2021 Hartzell Engine Technologies All rights reserved ...

Page 22: ...ft Alternator Maintenance Manual 24 30 01 ES1031 Page 2 4 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved 3 985 2 610 875 112 5 116 1 13 50 Figure 2 4 ES 10024B 1 10024B 5LS Dimensions ...

Page 23: ...ce Manual ES1031 24 30 01 Rev A 11 Aug 2021 Page 2 5 2021 Hartzell Engine Technologies All rights reserved Figure 2 5 ES 10024B 2 Dimensions 2 56 2 223 7 66 Figure 2 6 ES 10024B 3 Dimensions 7 50 2 40 2 97 3 22 1 517 PK 6 73mm STD ...

Page 24: ...l 24 30 01 ES1031 Page 2 6 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved Figure 2 7 ES 10024B 4 Dimensions 7 61 1 978 2 52 3 00 K 6 290 STD Figure 2 8 ES 10024B 5 Dimensions 9 393 2 44 2 266 1 883 J10 2 31 PITCH Ø ...

Page 25: ...raft Alternator Maintenance Manual ES1031 24 30 01 Rev A 11 Aug 2021 Page 2 7 2021 Hartzell Engine Technologies All rights reserved Figure 2 9 ES 10024B 1 thru 4 5LS ES 10024B 5 Less blast tube cover R3 50 ...

Page 26: ...Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 2 8 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved 5 725 4 122 Figure 2 10 6024D Dimensions 1 42 81 ...

Page 27: ... state of charge in the battery and supply current to the electrically powered equipment and accessories in the aircraft It performs this function by converting mechanical energy derived from its rotating parts into electricity 1 The BATTERY is the source of electrical power whenever the BAT Master Switch is ON and is the source of power for starting the aircraft Once started the ALTERNATOR become...

Page 28: ... printed circuit board incorporating a capacitor and gas dischargetube Both types perform the same function and provide similar performance Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 2 10 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved 2 4 Physical Detail A The brush holder assembly consists of a brush holder housing and two brush assemblies The brush assem...

Page 29: ...ernating current to direct current This rectified DC current is made available to external loads via the B terminal 2 6 Self Excitation Description A The HET alternator model ES 10024B 5 5LS when used in conjunction with an ACU alternator control unit that is designed to boot strap field voltage during low speed operation has the ability to self excite In other words the alternator ACU system has ...

Page 30: ...ly models may have an internal PCB with gas discharge tube and capacitor 47 μF N A N A N A N A N A N A N A N A N A N A 1 800 RPM Capacitor 50 µF 14 9 15 4 ohm 25 C Capacitor 50 µF Capacitor 50 µF Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 2 12 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved ...

Page 31: ...vided Upon determination of fault s refer to the TESTING section 6 for applicable test procedure s 3 2 Procedure WARNING WHEN SERVICING REPAIRING OR OVERHAULING THE ALTERNATOR GREAT CARE AND CAUTION MUST BE TAKEN TO AVOID HAZARDOUS SITUATIONS THE ALTERNATOR WHEN MOUNTED ON AN AIRCRAFT OR ROTORCRAFT PRESENT A PHYSICAL HAZARD FROM PROPELLERS ROTORS AND OTHER ROTATING DEVICES THE ALTERNATOR PRODUCES ...

Page 32: ...ake care not to scratch the surface If the slip rings are worn beyond limits replace or overhaul alternator see section 6 Short or leakage from field terminals to housing Unless it is determined the wire terminal is shorting to the housing replace the field terminals and insulators If disassembly is required replace or overhaul alternator Shorted or open rotor field Perform the tests for rotors as...

Page 33: ...repair as necessary Check condition of the slip rings and clean Check rotors as found in section 6 and if failed replace or overhaul alternator Voltage regulator malfunction Check the voltage regulator per the aircraft service manual and adjust if necessary If adjustment is not possible check wiring and replace voltage regulator Accessory load too high for alternator rating Refer to the AFM or POH...

Page 34: ...tery on battery tester to verify the condition Replace failed battery Shorted voltage regulator output full field condition Before replacing the voltage regulator check wiring harness for shorts or open conditions If harness is burnt or shows signs of overheating replace harness If wiring is good replace voltage regulator Voltage drop in voltage regulator feedback circuit The feedback line is comm...

Page 35: ...d be overhauled or replaced Loose mounting bolts Inspect mount points for damage and if found overhaul the alternator If not re torque mounting bolts per the engine or aircraft service manual Loose cooling duct connection If cooling duct is installed improperly normally an airframe component adjust and tighten the mounting connection as applicable Check and clear any interference with the airframe...

Page 36: ...rain relief to the cables and tighten properly See engine or aircraft service manuals Resistive or arcing circuit breaker Make a resistance check of the circuit breaker essentially there should be no resistance Check breaker function Old circuit breakers should be replaced Failed voltage regulator or connector Check to see if the regulator connector is attached properly Remove and examine connecto...

Page 37: ...as found in section 6 Disassembly may be required to verify symptom Replace or overhaul alternator Insufficient output filtering Check the RFI filter by performing a capacitance check Replace RFI filter if failed external filter only If an internal PCB type filter replace or overhaul alternator if failed In some cases additional RFI filters may be installed be sure that a check is performed on eac...

Page 38: ...overhauled or repaired and is being replaced the coupling should also be replaced 6 To further aid inspection Continental Motors includes drive coupling service information in the appropriate engine manuals and also in service bulletins Refer to CMI SB11 3 and or SB95 3B for drive coupling service information 3 4 Alternator Belt Troubleshooting A Although the alternator belt is provided by the air...

Page 39: ...o misalignment conditions Noises can occur in both single V type and Poly V type belts The belt is less likely to generate misalignment noise when in new condition As a belt wears it will develop a smooth glossy surface which will increase the possibility of noise A wear condition will be accelerated if misalignment exists between any of the pulleys in the drive system G A drive misalignment will ...

Page 40: ...ting and while the engine is cool cool wet belt 2 Is the noise loudest at idle speed or when accelerating the engine RPM rapid changes in RPM speed can cause a belt to slip 3 Try to recreate the problem in the maintenance run area If the noise is heard use a spray bottle or other source of misting water and mist the belt lightly If the noise level recedes or goes away for several seconds then retu...

Page 41: ...craft and or engine service instructions or maintenance manual Inspect area around the brush holder for soot If a large amount of soot appears remove each brush and check for wear or damaged brushes If severe wear has occurred check slip rings for gouges or scratches Check all terminal hardware for tightness and insulators for condition 500 Hours TIS each 500 hours thereafter or each two years the...

Page 42: ...Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 4 2 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved INTENTIONALLY LEFT BLANK ...

Page 43: ...n meter Safety gloves Protective goggles eye protection Ear Plugs hearing protection Safety shoes Protective cotton apron Air compressor shop air 2 Special tools The following are only requred if alternator was removed for bench testing Alternator test bench see Fig 5 2 24v aircraft battery Pulley optional see Fig 5 1 Belt tension gauge universal Alternator mounting fixture 5 3 3 Instruments A mul...

Page 44: ...he threads and each terminal stud should be inspected for signs of arcing 2 Arc marks are usually caused by a loose wire terminal connection resulting from failure to tighten the attaching nut 3 Arc marks can also be caused by improper service techniques that permit wires to be connected and disconnected while current is flowing A loose connection at the alternator output battery terminal can erod...

Page 45: ...aintenance for brushes 6 Item 3 4 failed rotor requires overhaul or replacement of the alternator D Mounting Hardware 1 Inspect and replace any removed metallic hardware i e screws flat washers nuts shaft spacer shaft woodruff key etc exhibiting damage wear corrosion or distortion 2 Hardware that will be reused shall be cleaned as required using a non corrosive chemical degreaser Air dry parts wit...

Page 46: ... runout of 0 006 inch on either axis 5 3 Alternator Bench Testing CAUTION BEFORE BEGINNING THESE PROCEDURES REFER TO AND OBSERVE THE PRECAUTIONS LISTED ON PAGE 5 2 OF THIS SECTION BENCH TEST PROCEDURES MUST BE PERFORMED BY AN APPROPRIATELY RATED MECHANIC IN AN ADEQUATELY EQUIPPED FACILITY A Alternator Output Test Conditions 1 The alternator is to be at room temperature 70 80 degrees Fahrenheit or ...

Page 47: ...ALL OTHER CONNECTIONS ARE MADE NOTE It is recommended to use a switched jumper from the F1 terminal to the DC output terminal Once the battery is connected F1 is energized and has potential to drain the battery It is recommended to leave the jumper open until ready to test the alternator 6 Close the circuit between the DC output terminal and the F1 terminal This will energize the field F1 7 Run Te...

Page 48: ...ALV 9610 Test Parameters Order of Tests Output Voltage Min Output Amps Max Alternator RPM Test 1 28 0 5 100 8000 Test 2 28 0 5 65 4000 Test 3 28 0 5 10 2500 Order of Tests Output Voltage Min Output Amps Max Alternator RPM Test 1 28 0 5 65 8000 Test 2 28 0 5 54 4000 Test 3 28 0 5 27 2500 Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 5 6 Rev A 11 Aug 2021 2021 Hartzell Engine Technolog...

Page 49: ...y with the current limit set to 3 5 amp can be used to polarize the rotor by briefly applying 28VDC nominal 2 Connect the positive lead of the power supply to the F1 terminal 3 Connect the negative lead to F2 terminal or the alternator case if the F2 terminal is not present 4 Ensure the power supply adjustment is set to zero 5 Turn on the power supply and slowly increase the supply voltage adjustm...

Page 50: ...Figure 5 1 Test Pulley Fabrication Dimensions Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 5 8 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved ...

Page 51: ... Alternator DC Load Bank V A Drive Motor Mounted below alternator Fig 5 3 Alternator Mounting Fixture Drive Belt Test Bench Surface 3 03 385 x4 4 14 90 Aircraft Alternator Maintenance Manual ES1031 24 30 01 Rev A 11 Aug 2021 Page 5 9 2021 Hartzell Engine Technologies All rights reserved ...

Page 52: ...ound Terminal DC Output DC Load Bank 24v Battery Field Terminal 1 to DC Output Jumper switched V A Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 5 10 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved ...

Page 53: ...Ground Terminal DC Output DC Load Bank 24v Battery Field 2 Terminal to Ground Jumper Field 1 Terminal to DC Output Jumper switched V A Aircraft Alternator Maintenance Manual ES1031 24 30 01 Rev A 11 Aug 2021 Page 5 11 2021 Hartzell Engine Technologies All rights reserved ...

Page 54: ...PAGE INTENTIONALLY LEFT BLANK Aircraft Alternator Maintenance Manual 24 30 01 ES1031 Page 5 12 Rev A 11 Aug 2021 2021 Hartzell Engine Technologies All rights reserved ...

Page 55: ... the proper level with approved water Perform a battery capacitance check using an aircraft battery capacitance tester to determine battery condition Check for dirt and corrosion and clean If other types of battery are used follow the specific instructions of the battery manufacturer Refer to note above 2 Wiring The alternator circuit should be inspected to insure that all connections are clean an...

Page 56: ...engine airframe and the drive coupling manufacturer concerning the installation inspection and replacement of the drive coupling 2 Check the general condition of the drive coupling requires removal of the alternator 3 Check the shaft nut and cotter pin for damage damage to these parts will indicate interference with internal engine parts If damaged determine cause 4 Using the manufacturer s servic...

Page 57: ...erminal 2 Disconnect the cable from the positive battery post and isolate the terminal 3 Disconnect the Field wires AUX wire output and ground cables from the alternator 4 Remove the retaining hardware for the alternator and brackets as required Remove the old engine case gasket and discard Remove the alternator from the aircraft engine 5 If drive coupling is to be removed cut and remove the cotte...

Page 58: ...is maintenance C Whenever maintenance is required on a belt driven alternator the external cooling fan must be visually inspected The following may be used with engine or airframe guidance in the most current revision of the service instructions or maintenance manual 1 Visually inspect the alternator fan for bent and or missing blades 2 Visually inspect each blade of the fan in the radius of the b...

Page 59: ...from the alternator 4 Release the tension from the alternator belt by loosening the retaining bolts Remove belt from the pulley Disconnect the retaining hardware and bracketry as required 5 Remove the alternator from the engine Some OEM applications may require the pulley to be removed before the alternator can be removed Remove the alternator from the aircraft engine 6 Remove the drive pulley fro...

Page 60: ...ace mismatched belts Increase tension Check P N and or replace pulley Pulley size on components correct Belt Separated Foreign materials in drive belt Belt slippage over time Heavy start up loads Belts damaged during installation Check that pulley is protected Increase tension or replace belt Reduce load before starting Install new belts properly Belt stretch Excessive drive tension Broken cords u...

Page 61: ...S SOLVENTS MAY HAVE A HARMFUL EFFECT ON BRUSHES AND SLIP RINGS OPENINGS SHOULD BE TEMPORARILY PLUGGED WITH SHOP TOWELS A If mounted on an aircraft to engine initial cleaning may be done using mineral spirits or isopropyl alcohol under pressure Blow dry using clean shop air B If removed initial cleaning should be done using a shop cloth and mineral spirits or isopropyl alcohol Wipe dry using clean ...

Page 62: ...Installation Prepare to install brush holder into the alternator 1 Install a new set of brushes HET P N ALE 13A into the brush holder Place each new brush into the brush holder Brushes must be oriented such that the axis of the curvature of the brush face is parallel with axis of F1 F2 terminals Refer to Fig 6 3c If checking brushes only be sure to place in the same position and orientation as rem...

Page 63: ... end of the alternator and discard Using a calibrated torque wrench apply 40 45 in lbs 5 08 5 65 Nm torque to the loose through bolt After application of torque check and apply the proper torque to the remaining through bolts Refer to Table 6 1 for proper torque E Install new 032 stainless steel safety wire or safety cable HET P N RX 1961 through the drilled hole in the through bolt head at the dr...

Page 64: ...move and discard lockwasher Field nuts are HET P N 8X 0140 Lockwashers are HET P N 12X 0194 B Installation 1 AUX Terminal Check bottom nut for a torque of 25 to 30 in lbs 2 82 3 39 Nm Place a new lockwasher HET P N 12X 0196 and the existing AUX nut HET P N 8X 0173 on the AUX stud Using a thin 3 8 inch wrench hold the bottom nut and tighten the top nut to a torque of 25 to 30 in lbs 2 82 3 39 Nm Re...

Page 65: ... Terminal Aux Terminal Nut Flat Washer AUX Terminal Stud Lock washer Insulator Fiber Washer Rectifier Mounting Plate Rectifier Mounting Plate Output Terminal Stud Nut Lock washer Flat Washer Fiber Washer Bushing Washer Bushing Capacitor Ring Terminal ES 10024 Only Ground Terminal Ground Stud Cupped Nut 2 ea Washer AN960 10 Field Terminal s Thin Washers 2 ea Lock Washer Nut Brush Holder Assembly ...

Page 66: ...9 As required Nut Field terminal HET P N 8X 0140 10 10 As required Lockwasher Field terminal HET P N 12X 0194 Replace when removed B Specific Items 1 One 1 each Pulley 10 Groove HET P N 40840 ES 10024B 5 2 One 1 each Pulley 6 Groove HET P N 40485 ES 10024B 4 3 One 1 each Pulley 6 Groove HET P N 40483 ES 10024B 3 4 One 1 each Pulley V Groove HET P N 40482 ES 10024B 2 C Special Items 1 One 1 each O ...

Page 67: ...e case gasket on the clean crankcase surface per the applicable Continental Motors Inc engine manual Obtain applicable part number gasket from CMI 4 Position the alternator and install the retaining hardware and brackets as required Torque the crankcase mounting bolts to the torque specification found in the appropriate Continental Motors engine manual 5 Connect the Field wires Aux wire the output...

Page 68: ...ined by the engine manufacturer the alternator may be impacted critically by this event Although the alternator drive system is designed with an OEM supplied elastomer drive coupling which protects the engine from seizure of the rotating components inside the alternator the coupling may place unknown strain on the alternator shaft from the sudden stoppage of the engine drive train The shaft may be...

Page 69: ...ted in accordance with the appropriate engine or airframe manuals Assure all steps are taken to properly return the aircraft to service C Lightning Strike NOTE For engine OEM s Special Condition Lightning Strike refer to the latest revision of Lycoming Engines Inc SB 401 or Continental Motors Inc SB 88 9 1 Lightning strike is a very unpredictable event both in occurrence and in resultant damage A ...

Page 70: ...or there are several categories to consider Short term storage or long term storage on or off the aircraft Short term storage will be considered as storage up to but not exceeding twenty four 24 calendar months Long term storage will be considered as storage up to but not exceeding twelve 12 calendar years There are different methods for each type of storage 1 Short term if on the shelf requires o...

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