GENERAL.
DESCRIPTION AND OPERATION. (Refer to Figure 80-1.)
The gear reduction starting motor consists of six major components: The Commutator End Head
Assembly, The Armature, The Frame and Field Assembly, The Gear Housing, The Pinion Housing, and The
Bendix Drive Assembly. When the starting circuit is energized, battery current is applied to the starting motor
terminal. Current flows through the field coils, creating a strong magnetic field. At the same time, current
flows through the brushes to the commutator, through the armature windings to ground. The magnetic force
created in the armature combined with that created in the field windings begins to turn the armature.
The gear cut on the drive end of the armature shaft extends through the gear housing, where it is supported
by a roller bearing. The gear mates with the teeth of the reduction gear that drives the bendix shaft. The shaft is
keyed to the reduction gear. The Bendix drive is held in position on the shaft by a “spiral” pin. The shaft is
supported in the gear housing by a closed end roller bearing and in the pinion housing by a graphtized bronze
bearing.
When the armature turns the reduction gear, the Bendix drive pinion meshes with the flywheel ring gear by
inertia and action of the screw threads within the Bendix sleeve. A detent pin engages in a notch in the screw
threads which prevents demeshing if the engine fails to start when the starting circuit is de-energized.
When the engine reaches a predetermined speed, centrifugal action forces the detent pin out of the notch in
the screw shaft and allows the pinion to demesh from the flywheel.
TROUBLESHOOTING.
Refer to Chart 8001, Troubleshooting (Starter).
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80-00-02
Page 80-01
December 1, 1978
3G12
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
Содержание Arrow IV
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Страница 22: ...CHAPTER TIME LIMITS MAINT CHECKS 1A22...
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Страница 40: ...CHAPTER DIMENSIONS AND AREAS 1B16...
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Страница 53: ...CHAPTER LIFTING AND SHORING 1C5...
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Страница 57: ...CHAPTER LEVELING AND WEIGHING 1C9...
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Страница 62: ...CHAPTER TOWING AND TAXIING 1C14...
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Страница 66: ...CHAPTER PARKING AND MOORING 1C18...
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Страница 70: ...CHAPTER REQUIRED PLACARDS 1C22...
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Страница 77: ...CHAPTER SERVICING 1D5...
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Страница 110: ...CHAPTER STANDARD PRACTICES AIRFRAME 1E14...
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Страница 117: ...CHAPTER ENVIRONMENTAL SYSTEM 1E21...
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Страница 169: ...CHAPTER AUTO FLIGHT 1H1...
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Страница 176: ...CHAPTER COMMUNICATIONS 1H8...
Страница 185: ...CHAPTER ELECTRICAL POWER 1H17...
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Страница 233: ...CHAPTER FLIGHT CONTROLS 1J17...
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Страница 297: ...CHAPTER FUEL 2A18...
Страница 320: ...CHAPTER HYDRAULIC POWER 2B17...
Страница 355: ...CHAPTER LANDING GEAR 2D4...
Страница 418: ...CHAPTER LIGHTS 2F19...
Страница 430: ...CHAPTER NAVIGATION AND PITOT STATIC 2G7...
Страница 444: ...CHAPTER OXYGEN SYSTEM 2G21...
Страница 464: ...CHAPTER VACUUM SYSTEM 2H17...
Страница 473: ...CHAPTER ELECTRICAL ELECTRONIC PANELS AND MULTI PURPOSE PARTS 2I2...
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Страница 477: ...CHAPTER STRUCTURES 2I6...
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Страница 496: ...CHAPTER DOORS 2J1...
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Страница 505: ...CHAPTER STABILIZERS 2J10...
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Страница 519: ...CHAPTER WINGS 2J24...
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Страница 550: ...CHAPTER PROPELLER 3A18...
Страница 565: ...CHAPTER STANDARD PRACTICES ENGINE 3B9...
Страница 568: ...CHAPTER POWER PLANT 3B12...
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Страница 611: ...CHAPTER IGNITION 3D7...
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Страница 664: ...CHAPTER EXHAUST 3G1...
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Страница 669: ...CHAPTER OIL SYSTEM 3G6...
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Страница 673: ...CHAPTER STARTING 3G10...
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Страница 688: ...CHAPTER TURBINES 3H1...
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Страница 694: ...CHAPTER 91 CHARTS AND WIRING DIAGRAMS 3H7...
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