4-39. OIL COOLER ASSEMBLY REPAIR (Cont)
(j) Move air nozzle plate kit (14) to front cover of oil cooler assembly at oil inlet opening.
Attach with two bolts, two Iockwashers, two flat washers and two nuts from kit.
(k) Fill oil cooler assembly (5) with cleaning solvent, at front cover at oil outlet. Gradually
apply up to 100 psi of air pressure to air nozzle plate kit (14) until all cleaning solvent
and sludge is blown out.
(1) Repeat steps (g) thru (k) until cleaning solvent comes out clean.
(m) Remove four bolts (1 and 6) and four Iockwashers (2) securing tube (8), two flanges
oil cooler bypass (7), and three gaskets (4) to oil cooler assembly (5). Remove two
preformed packings (15) from flange (3) and tube (8).
(2) Clean transmission oil section of the oil cooler as follows:
(a) Attach plate kit (13), with air connection in tapped hole, at transmission outlet using four
bolts, four flat washers, four Iockwashers, and four nuts from kit.
Dry cleaning solvent P-D-680 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 dont breathe vapors. Do not use near
open frames or excessive heat. The flash point is 100oF-138°F (38 °C-
50oC). If you become dizzy while using cleaning solvent, get medical aid.
If contact with eyes is made, wash your eyes with water and get medical