Transmission Control Valve - TM-10-3930-242-340136

TM 10-3930-242-34

NOTE

The main oil pressure regulating valve may be ad-

justed by adding or removing shims. Each shim will

raise or lower pressure approximately 10 psi.

f. Installation. Refer to figure 4-6 and reins-

t a l l transmission main oil pressure regulating

valve.

4-5. Transmission Control Valve

a. General. The transmission control valve is

s e c u r e d to the side of transmission housing by

11 bolts and lockwashers. The control valve

b o d y assembly houses the forward-reverse con-

t r o l valve assembly, the range selector valve

and the clutch cut off valve.

b. Removal.

Figure 4-5. Transmission disconnect valve, removal and in-

stallation.

(1) Remove access panel from under right

rear fender.

(2) Refer to figure 4-8 and remove the con-

trol valve.

c. Disassembly. Refer to figure 49 and disas-

s e m b l e control valve in numerical sequence.

d. Cleaning and Inspection.

(1) Clean all parts thoroughly, using sol-

v e n t P-D-680, or equal.

(2) Clean all oil passages.

( 3 ) Inspect cast for nicks, scratches, and

g r o o v e s . Remove burrs with crocus cloth. Re-

place parts that are deeply grooved or

scratched.

( 4 ) Inspect threaded openings for damaged

threads.

e . Reassemble. Refer to figure 49 and reas-

s e m b l e control valve.

f. Installation. Refer to figure 4-8 and install

t h e control valve.

Figure 4-6. Transmission main oil pressure regulat-

ing valve, removal and installation.