TM 9-2320-289-34
5-16.
TRANSMISSION FORWARD CLUTCH ASSEMBLY MAINTENANCE (Con’t).
2.
Inspect composition-faced clutch plates, flat steel clutch plates, and waved clutch plate for
signs of damage. Replace if damaged.
3.
Inspect 16 piston springs for collapsed or broken coils,
4.
Inspect forward and direct clutch hubs for worn splines,
Replace if worn or if oil passages remain blocked after
Replace if collapsed or broken,
thrust faces, and open oil passages.
cleaning.
5.
Inspect forward clutch piston for damage. Replace if damaged,
6.
Inspect forward clutch assembly housing for damage and open oil passages. Inspect operation
of check ball in forward clutch assembly housing to ensure that check ball is loose and moves
freely. Replace forward clutch assembly housing if damaged, if oil passages cannot be blown
open, or check ball operation is not correct.
7,
Inspect turbine shaft for damage. Oil passages on each end of turbine shaft should be
plugged. Oil passages across turbine shaft should be open. Replace if damaged or if oil
passages are not as specified.
d . A S S E M B L Y
1.
Lubricate new center seal (20) with hydraulic fluid and seal groove in forward clutch assembly
(2) housing with petrolatum. Install center seal to forward clutch assembly housing with lip
facing up.
2.
Apply petrolatum to grooves in forward clutch piston (16), Lubricate 1 new inner seal (18) and
1 new outer seal (19) with hydraulic fluid. Install seals with lips facing away from piston spring
(17) guides,
3.
Place inner seal protector (22) over hub in forward clutch assembly (2) housing.
4.
Install forward clutch piston (16) inside outer seal protector (21). Insert assembly in forward
clutch assembly (2) housing, Install forward clutch piston by rotating in a clockwise direction
until fully seated. Remove inner seal protector (22) and outer seal protector.
TA50267
5-86
