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TM 5-2420-222-34
8-20.
REVERSER CLUTCH CONTROL VALVE ASSEMBLY MAINTENANCE (Con’t).
4.
Inspect valve body for cracks, breaks, and abnormal bends and wear.
5.
Inspect all metal parts for cracks, breaks, abnormal bends, and excessive wear. Inspect threaded parts for
damaged threads.
6.
Inspect clutch control valve spring, relief valve spring, pressure valve spring, pressure regulating control valve
spring and piston spring for cracks, bends, and breaks. Using spring tester, measure free lengths of springs. Free
lengths must be:
•
Piston spring
....................................................................................
2 5/8 in. (6.7 cm)
•
Clutch control valve spring ..................................................................
3/4in. (1.9 cm)
•
Relief valve spring ..............................................................................
2 1/16 in. (5.2 cm)
•
Pressure valve spring ..........................................................................
1 1/8 in. (2.9 cm)
•
Pressure regulating control valve spring ............................................
2 9/16 in. (6.5 cm)
d.
ASSEMBLY
1.
Install remote levers (66 and 68) in valve body (1) with new spring pin (67).
2.
If removed, install two seals (61).
3.
Install ball bearing (65), spring (64), new preformed packing (63), and vent plug (62) in valve body (1).
4.
Install pressure regulating control valve (60), spring (59),
and three washers (shims) (58) in valve body (1).
TA701425
8-95
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