Contol Valve and Modulation Valve Assemblies

TM 10-3930-638-24&P

3-19. TRANSMISSION MAINTENANCE (cont)

d. Contol Valve and Modulation Valve Assemblies (cont).

ITEM

REMARKS

STEP

LOCATION

ACTION

REMOVAL

a. Nine cap screws (1)

Remove

Support control valve (3) and modulation

Transmission,

valve (7)

and lock washers

left side

(2)

CAUTION

When performing following step, be careful not to lose detent

balls (5) or springs (6).

Remove

b. Control valve (3)

and modulation

valve (7)

From control valve assembly (3)

c. Two detent balls (5)

Remove

and springs (6)

WARNING

Dry cleaning solvent (P-D-680), used to clean parts is toxic and

flammable. Wear protective goggles and gloves and use only in a

well ventilated area. Avoid contact with skin, eyes, and clothes

and don't breathe vapors. Do not use near open flame or exces-

sive heat and don't smoke when using it. Failure to do so could

cause serious injury. If you become dizzy while using cleaning

solvent, get fresh air immediately, and get medical attention. If

contact with skin or clothes is made, flush with large amounts of

water. If contact with eyes is made, wash eyes with water immedi-

ately, and obtain medical aid immediately.

d. Gaskets (4 and 8)

Remove and

Clean all traces of gasket material from

discard

mounting surfaces with cleaning solvent

P-D-680

INSTALLATION

a. Two detent springs (6)

Install

Transmission,

b. Two detent balls (5)

Install

left side

Position

On modulation valve assembly (7)

c. New gaskets (4 and 8)

d. Control valve assembly

Position

On modulation valve assembly (7)

(3)

e. Nine cap screws (1)

Install

Through control valve (3), modulation

valve (7), and gaskets (4 and 8)

and lock washers (2)

f. Valves (3 and 7) with

Position

Against transmission, with mounting

holes aligned

cap screws (1), lock

washers (2), and

gaskets (4 and 8)

Install and tighten To 23-25 pounds foot torque

g. Nine cap screws (1)

3-134