TM 5-3810-307-10
Located beneath the cab, is a diesel fuel burning heater which provides heat to the
cab. The heater fuel tank is located on the right side of the turntable. All heater
controls are located within the cab. Windshield defroster controls and tubing are
provided with the heater.
The superstructure cab also features an air conditioning unit. The air compressor
and condenser unit is housed behind a cover on the left side of the boom on the
forward side of the counterweight. The air conditioner controls including the air
handler and blower fan are located in the cab.
c.
Engine. The diesel engine is housed in the engine compartment behind the carrier
cab and is used to provide crane mobility. The engine is also used to charge the air
system, drive the steering pumps, and supply electrical power for carrier control
circuits, accessories, and lighting. In addition, the engine drives the hydraulic
pumps though the pump drive. All controls for the engine are located in both cabs.
d.
Fuel Tank. A single 44-gal. (166.6 L) capacity fuel tank is mounted on the right side
of the carrier frame. The filler cap is located on the top of the tank.
e.
Drive Train. The drive train consists of the transmission, drive shafts, and the
associated linkages. The transmission is electrically shifted and has six forward and
three reverse speeds from the carrier cab and three forward and three reverse
speeds from the superstructure cab.
f.
Axles. The axles are drive steer axles and have inter-axle differential locks to lock
the differentials together for traveling in adverse road conditions.
g.
Steering Systems. The crane is equipped with a front axle steering system and a
rear axle steering system. The two separate systems can be activated from either
cab.
h.
Brakes. The brakes, which are drum and shoe-type, are air operated. The rear
axle is equipped with spring applied brakes to hold the carrier stationary when
parking and to provide auxiliary braking in case of emergency.
i.
Air System. The air system provides the air supply to operate the service brakes,
the parking brakes, trailer service connections, air inflation system, and the engine
air throttle. The engine driven air compressor supplies the air to charge the air
reservoirs. An air dryer removes moisture from the air before it reaches the
reservoirs.
j.
Hydraulic System and Components. The hydraulic system is designed to provide
adequate pressure and flow for simultaneous operation of various crane functions.
(1)
Reservoir. The hydraulic reservoir is a 64 gal. (242 L) steel tank located on
the left side of the carrier. A full flow return-type 10 micron filter is installed in
the reservoir.
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