TM  10-3930-638-24&P 3-19.   TRANSMISSION   MAINTENANCE   (cont) d. Contol Valve and Modulation Valve Assemblies (cont). STEP LOCATION ITEM ACTION REMARKS REMOVAL 1 Transmission, a. Nine cap screws (1) Remove Support control valve (3) and modulation left side and lock washers valve  (7) (2) CAUTION When performing following step, be careful not to lose detent balls (5) or springs (6). b. Control valve (3) Remove and  modulation valve  (7) c. Two detent balls (5) Remove From control valve assembly (3) 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 2 Transmission, a. Two detent springs (6) Install left  side b. Two detent balls (5) Install c. New gaskets (4 and 8) Position On  modulation  valve  assembly  (7) d. Control valve assembly Position On modulation valve assembly (7) (3) e. Nine cap screws (1) Install Through control valve (3), modulation and lock washers (2) valve (7), and gaskets (4 and 8) f. Valves (3 and 7) with Position Against transmission, with mounting cap screws (1), lock holes aligned washers (2), and gaskets (4 and 8) g. Nine cap screws (1) Install and tighten To 23-25 pounds foot torque 3-134