TM 9-2320-211-10-1
II
h. Transfer System. The transfer system sends power from the transmission
to the propeller shafts to drive the front and rear wheels. The system gives an
additional gear combination ( speed) for each transmission speed.
i. Transmission Power Takeoff System. This system sends power to the propeller
shafts to operate auxiliary equipment.
j . Transfer Power Takeoff System. This system sends power from the transfer
unit to the propeller shafts to operate auxiliary equipment and accessories.
k. Propeller Shafts. Propeller shafts are used to send power from the transmis-
sion to the transfer system and from the transfer system to the axles. Propeller
shafts also send power from the power takeoff assemblies to auxiliary equip-merit and
accessories.
1. Steering System. When the operator turns the steering wheel, the steering
system sends this action to the front wheels. This system controls the direction of
the truck while in motion.
m. Compressed Air System. The compressed air system provides air for service
use and also for a power assist to the hydraulic brake system.
n. Brakes System, When the operator steps on service brake pedal, the brakes
system slows down or stops the truck. A handbrake, when set to up position by the
operator, is used for parking the truck.
Axles, Wheels, and Hubs. The axles support the weight of the truck and
o.
sends power to the hubs and wheels.
p. Auxiliary Equipment and Accessories. These components do required tasks,
such as pulling, lifting, heating, and towing.
Section II.
PHYSICAL DESCRIPTION
GENERAL. The following paragraphs describe systems, units and components
of the various trucks. The diagrams show the location of these items on the vehicle.
OVERALL EQUIPMENT PHYSICAL DESCRIPTION .
a. Engine. M39 series trucks are equipped with US Army LDS 465-1 and
LDS 465-1A six-cylinder, in-line, liquid-cooled, multifuel engines. The multifuel
permits the use of various grades of fuel. Refer to table 2-6 for fuel grades to be
used.
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