Transmission and Steering Clutch Control Check Valve

c. Inspection and Repair.

(1) Inspect the valve housing and valve for

nicks, burrs, pitting, and wear. Light scratches or a

l i g h t grey wear appearance are not harmful to the

v a l v e . Examine the valve land edges for wear. If

wear or damage exists, the complete valve assembly

must be replaced.

(2) Inspect outlet relief valve spring for

d a m a g e and proper tension. The outlet relief valve

s p r i n g should exert 39.54 3.16 pounds of force

w h e n compressed to 2.00 inches. Free length after

test should be 2.98 inches. Spring diameter is 0.88

inch. Replace defective or weak spring.

6-8. Transmission and Steering Clutch Control

Check Valve

a. Removal and Installation.

( 1 ) Refer to TM 5-2410-233-20 and drain the

t r a n s m i s s i o n and steering clutch hydraulic system.

(2) Disconnect oil supply line (3, fig. 6-36).

(3) Remove bolts (2) and check valve (1).

Figure 6-36. Check value removal.

(4) Install the relief valve in the reverse order

of removal using new preformed packings.

b . Disassembly and Reassembly. Refer to figure

6-37 to disassemble and reassemble check valve.