TM 55-1905-219-14-6
3-149. LUBE OIL COOLER - MAINTENANCE INSTRUCTIONS.
LOCATION
ITEM
ACTION
REMARKS
TESTING
-
PRESSURE
4. Attach air hose (33)
Apply 75-150
to oil cooler core
psi (517-1034
(18).
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
(82 ).
C
the water.
3-2586