Power from the diesel engine (7) is sent from the
engine flywheel (12) through the torque converter (6).
The output shaft of the torque converter sends the power
through upper drive shaft (5) to the input shaft of the
planetary transmission (2). The planetary transmission
(2) has six clutches which are hydraulically engaged.
Two clutches turn and the other four clutches are
stationary. Four planet systems are used in combination
with the six clutches to give four speeds forward and two
speeds reverse. The direction and speeds are changed
The output shaft of the planetary transmission sends
the power to the output transfer gears (1). From the
output transfer gears (1), power goes through the lower
drive shaft (8) to the pinion shaft and bevel gear (9). The
pinion shaft and bevel gear send the power through the
differential (10). The differential sends the power to the
final drives and wheels (11).
Splines are used as connections between the axles
and the sun gears of the final drives. When the sun
gears turn, the planet gears in the carrier move around
the inside of the stationary ring gear. This action turns
the carrier and the wheels.