TM 9-2320-289-34
5-4.
TRANSMISSION OIL COOLER SUPPLY AND RETURN PIPES MAINTENANCE.
This task covers:
a. Flushing Pipes
c.
Installation
b. Removal
INITIAL SETUP:
Materials/Parts
Too/s/Test Equipment
l Dry cleaning solvent (Item 23, Appendix B)
l Oil suction pump
l 5/16 in. I.D. rubber hose
• Line wrench
(Item 38, Appendix B)
l Hydraulic fluid (Item 40. Appendix B)
General Safety Instructions
l Allow transmission oil cooler pipes to cool before servicing.
l Dry cleaning solvent is flammable and must not be used near open flame. Use only in a
well-ventilated area,
• Compressed air used for flushing purposes should never exceed 30 psi (207 kPa).
a.
FLUSHING PIPES
WARNING
l AIIow transmission oil cooler pipes (9 and 10) to Cool before attempting
to service. Failure to follow this warning may result in serious burns,
l Dry cleaning solvent P-D-680 is toxic and flammable. Always wear
protective goggles and gloves and use only in a well-ventilated area.
Avoid contact with skin, eyes, and clothes and DO NOT breathe vapors.
DO NOT use near open flame or excessive heat, The solvent’s flash
point is 100°F-138°F (38°C-590C). If you become dizzy while using
cleaning solvent, immediately get fresh air and medical help, If solvent
contacts eyes, immediately wash your eyes with water and get medical
aid.
CAUTION
Before a new or overhauled transmission (1) is installed, oil cooler in
radiator (4) and transmission oil cooler supply pipe (9) and return pipe
(10) must be flushed to rid the system of contamination. Failure to
perform this procedure will result in damage to transmission,
NOTE
Suitable containers should be used to catch hydraulic fluid and dry
cleaning solvent during flushing.
1.
Loosen 2 fittings (11) and disconnect transmission oil cooler supply pipe (9) and return pipe
(10) from 2 connectors (2) at transmission (1),
2.
Place a 5/16 in. I.D. rubber hose over end of transmission oil cooler supply pipe (9) and insert
end of hose into dry cleaning solvent.
5-16
