DRIVE SYSTEM DESCRIPTION (CONT)
(Sheet 2 of 2)
DIESEL ENGINE. Provides mechanical power necessary for
DRIVE SHAFTS (3). A means of transmitting power from:
drive train. Power is transmitted from engine flywheel to torque,
(A) Output transfer gears to the rear differential.
TORQUE CONVERTER. Connects the engine power to the
(B) Output transfer gears to the bearing cage.
drive train, similar to a mechanical clutch.
(C) Bearing cage to the front differential.
UPPER DRIVE SHAFT. Transmits power from torque con-
verter to the input transfer gears.
BEARING CAGE. Supports the extra universal joint and drive
shafts required for articulated steering. Also, it transmits power
INPUT TRANSFER GEARS. A system of gears which provides
between drive shafts (2) and (3).
a speed reduction between torque converter and transmission,
The output gear of the transfer gears turns the input shaft of the
DIFFERENTIAL. A gear arrangement that connects and divides
the power from the drive shaft to the axle shafts. Dividing the
power causes the outside wheel to turn faster than the inside
TRANSMISSION. A hydraulically activated (automatic) type.
when making a turn. This vehicle is equipped with a front and
The transmission has four speed ranges FORWARD and four
rear differential; both function in the same manner.
speed ranges in REVERSE. Both speed and direction are
10. FINAL DRIVE. A gear arrangement that causes the last speed
reduction and torque increase in the power train. Input power
OUTPUT TRANSFER GEARS. A system of gears at the output
for the final drive is from the axle shaft and the output is the
side of the transmission which transmits power from the
road wheel. There are four final drives on this vehicle, one for
transmission to the drive shafts.