TRANSMISSION HYDRAULIC CONTROLS
SYSTEMS OPERATION
TM 5-3805-263-14&P-2
TRANSMISSION HYDRAULIC CONTROLS
The basic components of the transmission oil
system are oil reservoirs (11), (12), and (13), oil
pump (7), oil filter (1), main relief valve (4),
selector valve group (10) and the differential lock
valve (9).
The hydraulic controls are: Main relief valve (4),
selector valve group (10) and differential lock valve
(9). The location of the selector valve group is
inside the transmission housing. Selector valve
group (10) sends pressure oil to the proper clutches
for the selection of a speed (six forward and six
reverse). The location of the main relief valve (4)
and the differential lock valve (9) is on the outside
of the transmission housing. The main relief valve
(4) controls the pressure in the hydraulic system.
The differential lock valve (9) controls the lock-up
clutch in the differential.
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