3-32 LUBE OIL COOLER ASSEMBLY INSPECT/TEST/REPAIR (CONT.)
Check cooler housing, support, and cover for cracks, damage, and corrosion.
Check core for plugged or damaged tubes. Inspect sealing surfaces for scratches, d
ents, or other damage.
Install oil cooler core in oil cooler pressure test kit.
Attach a regulated air pressure line to Test Plate, and apply 60 psi (415 kPa) air pressure.
Install oil cooler in a tank of water and inspect for leaks.
If leaks are found. replace the oil cooler core.
Remove oil cooler core from water tank.
Remove pressure test equipment.
Death or serious injury could occur if compressed air is directed against the
skin. Do not use compressed air for cleaning or drying unless the pressure
is/has been reduced to 30 psi (2.11 kgcm2) or less. When working with
compressed air always use chip guards, eye protection, and other personal
Dry oil cooler with compressed air.
Do not attempt to repair a damaged oil cooler core; it must be replaced.
If oil cooler core leaks or is damaged, it must be replaced.
Repair of remaining parts is limited to replacement.