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 TM 55-1905-219-14-4
3-17. LUBRICATING OIL COOLER - MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
CLEANING
8. Cylinder
Gasket
Remove all traces of gasket
block
from block and cooler parts.
Perform this operation in an open or well-ventilated room. Avoid breathing fumes or
direct contact of chemicals with your skin.
9. Oil clean-
a. Oil pass-
Force a solution of
Use a force
er core.
ages.
trichloroethylene thru
pump.
passages. Clean out
loosened sludge from
passages. If passages
are badly clogged, cir-
culate an Oakite or
Alkaline solution thru
core and flush thoroughly
with clean, hot water.
If engine failure has occured, where metal particles from worn or broken parts have been
released into the lubricating oil, do not clean oil cooler core. The core must be replaced.
Perform this operation in an open or well-ventilated room. Avoid breathing fumes or
direct contact of acid with skin.
b. Water
a. Immerse in cleaning
Make solution
side of
solution. Bubbles
by adding 1/2
cooler
and foaming indicate
pound (0.227
core.
cleaning action.
kg), oxalic
acid to 2 1/2
gallons of a
solution of
1/3 muriatic
acid and 2/3
water.
3-561
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