TM 5-4320-300-14
6-5. OIL COOLER (CONT)
Location/item
Action
Remarks
2.
Oil cooler
Matchmark core to oil
core
cooler housing. Remove
core.
3.
Gaskets
Discard. Remove any
trace of gasket material
from sealing surfaces.
CLEANING
WARNING
Dry cleaning solvent is flammable and potentially dangerous to people and property. Do not use
near open flame, sparks, excessive heat, or on hot surfaces. Flash point of P-D-680 solvent is 1000
to 138°F (380 to 590C). Use solvent in a well-ventilated area, and avoid inhaling fumes. If
repeatedly exposed to fumes, seek fresh air and immediate medical help. Avoid prolonged
exposure of skin to solvent. Wash exposed skin immediately and thoroughly. Compressed air
used for cleaning shall not exceed 100 psi (690 kPa). Use goggles or face shield for eye
protection. Do not direct airstream against skin.
CAUTION
Do not attempt to clean an oil cooler core which has been in contact with oil containing metal
particles from worn or broken engine parts. Engine damage may occur. Replace the oil cooler
core.
4.
Oil cooler
To remove carbon and sludge, circulate P-D-680
core
dry cleaning solvent through oil passages. Thor-
oughly dry oil passages with compressed air. Clean
core exterior with dry cleaning solvent and dry
with compressed air. Then circulate clean water
through core passages. Dry core passages with
compressed air until all water evaporates.
5.
Oil cooler
Clean housing thoroughly with P-D-680 dry
housing
cleaning solvent and dry with compressed air.
Then flush thoroughly with clean water. Dry
with compressed air. Set housing aside.
6-13
