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 TM 55-1905-219-14-5
3-74. LUBE OIL COOLER - MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARK
TESTING - PRESSURE (Cont)
4. Attach air hose (26)
Apply 75-150
to oil cooler core
psi (517-1034
(16).
kPa) air pres-
sure.
5. Submerge oil cooler
Any leaks will
core in a tank of
be indicated by
heated water (180
F
air bubbles in
(820C)).
the water.
3-1329
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