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TM 10-3930-643-20
INTRODUCTION.
1-16.
Electrical System.
i .
Batteries. Two 12
in the battery housing on
volt batteries are used. The batteries are enclosed
the left hand side of the hydraulic reservoir.
They
are connected in series to provide 24 volts of power.
1-17.
Transmission and Torque Converter.
F o r i l l u s t r a t i o n s r e f e r t o s p e c i f ic
maintenance tasks.
a.
Transmission. The transmission is designed to increase the useful range
of the torque converter. It has hydraulically actuated clutches. First range
increases power for starting. As the demand on the converter
d e c r e a s e s , t he
transmission may progressively be shifted into higher ranges.
b.
Torque Converter.
The torque converter is a single stage, single phase,
three element type. It is equipped with a power take-off to drive the hydraulic
pumps. The torque converter provides two functions. It couples the engine to
the transmission and it multiplies engine torque.
1-18.
Drive Train. For illustrations refer to specific maintenance tasks.
a.
Propeller Shafts.
The purpose of the drive shaft is to transmit power.
All the drive shafts on the vehicle are similar in construction. There is a
universal joint located on the end of each to prevent pivoting in all
d i r e c -
tions. This also accommodates any misalignment. A slip joint is
p r o v i d e d to
allow the shaft to telescope and compensate for axial movement due to
surface
irregularities and varying loads.
b.
Axles.
Front and rear axle assemblies have three main functions; to
transmit outgoing torque at 90 degrees to the left and right of
i t s
input
d i r e c t i o n,
to increase the input torque through a reduction gear and at the
same time, supporting the vehicle frame and components. Both axles
a r e f u l l
floating and double reduction type, Front axle is mounted to front frame. Rear
axle is attached to an oscillating cradle. The cradle is pinned to
t h e r e a r
frame.
c. Wheels and Tires.
Each wheel revolves on two tapered roller bearings
q ounted on the axle spindle. Tires are mounted on the wheels.
1-15
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