AUXILIARY POWER UNIT (APU)

Section III. TECHNICAL PRINCIPLES OF OPERATION

HYDRAULIC RESERVOIR - TM-9-2350-287-10_34

TM-9-2350-287-10 Carrier Personnel Full Tracked Armored M113A3 2350-01-219-7577 (EIC AE7) Carrier Command Post Light Tracked M577A3 2350-01-369-6085 (EIC AE7) Manual
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TM 9-2350-287-10 AUXILIARY POWER UNIT (APU) APU: The APU uses a separate and independent engine to drive (via a chain-and-sprocket arrangement) an electrical generator and primary hydraulic pump. APU ENGINE: The engine is a two-cylinder, four-cycle, 11.5 horsepower diesel engine. Ignition, fuel supply switch, and engine indicators are located on the APU control box in the cargo compartment. ELECTRICAL GENERATOR: When driven, the generator will supply enough power to run its own electrical system and that of a supported vehicle, via slave receptacles and cable. This slave power may be used to charge dead batteries of a disabled vehicle or to operate the supported vehicle’s electrical system. HYDRAULIC PUMP: The pump supplies hydraulic fluid to all hydraulic circuits whenever the APU is functioning. The pump is of the rotary-gear type. 1-12 Change 1

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