TM-9-2320-279-10-1
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
OPERATOR’S MANUAL VOLUME 1 OF 2
DECEMBER 1998
CHANGE 5
TM-9-2320-279-10-1 - Page 33 of 773
TM 9-2320-279-10- 1
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Component Locations (Cont)
Legend for Figure 1-9. M977 through M985 Components Location.
PERSONNEL CAB.
Provides protection from weather for crew and vehicle controls,
gages, and indicators.
ENGINE COMPARTMENT.
Engine supplies power to move vehicle and operate
equipment and accessories.
ETHER CANISTER.
Contains ether for use as cold weather starting aid.
AIR CLEANER.
Filters out dust and debris from air entering air induction system.
TIRE DAVIT (shown assembled).
Used to raise and lower spare tire.
HYDRAULIC RESERVOIR.
Stores, cools, and filters oil used in hydraulic and power
steering systems.
FUEL TANK.
Stores fuel used to operate engine. Receives excess fuel not used by
engine’s fuel injection system.
NO. 3 DRIVING AXLE.
Supports weight of vehicle and transmits power to hubs to
turn rear wheels.
NO. 4 DRIVING AXLE.
Supports weight of vehicle and transmits power to hubs to
turn rear wheels.
TIRE DAVIT (shown in stowed position).
Used to raise and lower spare tire.
AIR DRYER.
Used to remove dirt and moisture from compressed air before air
enters air reservoirs.
FUEL-WATER SEPARATOR.
Acts as primary fuel filter and removes any water from
fuel before entering engine.
BATTERY BOX.
Houses and protects four storage batteries.
NO. 1 DRIVING AXLE.
Controls direction of vehicle when in motion. When
needed, transmits power to hubs to turn wheels.
NO. 2 DRIVING AXLE.
Controls direction of vehicle when in motion. When
needed, transmits power to hubs to turn wheels.
AIR RESERVOIRS.
Used to store air system air.
SELF-RECOVERY WINCH (not used on all vehicles).
Used to help vehicle pull itself
free of obstructions.
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