3-7.1. ENGINE OIL COOLER SUPPLY AND RETURN LINES MAINTENANCE
(SERIAL NUMBERS 300000 AND ABOVE)
This task covers:
General mechanic's tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
TB 9-2320-335-13&P, Appendix E
automotive (Appendix B, Item 2)
· Oil filter removed (TM 9-2320-387-24-1).
Two locknuts (Appendix A, Item 77)
General Safety Instructions
Three tiedown straps (Appendix A, Item 323)
Do not drain oil when engine is hot.
Lockwasher (Appendix A, Item 145)
Do not drain oil when engine is hot. Severe injury to personnel
Cover or plug all open lines and connections immediately after
disconnection to prevent contamination. Remove all plugs prior to
· Replacement procedures for engine oil cooler supply and return
lines are basically the same. This procedure covers the supply line.
· Mark line connectors for installation.
Have drainage container ready to catch oil.
Disconnect supply line connector (12) from adapter (11) and allow oil to drain.
Disconnect supply line connector (29) from oil cooler port (30).
Remove locknut (25), lockwashers (26), capscrew (1), oil and power steering lines bracket (3), and
washers (2) and (27) from airlift bracket (4). Discard locknut (25) and lockwasher (26).
Remove capscrew (20), lockwasher (21), washer (22), and oil lines bracket (23) from steering gear
case (24). Discard lockwasher (21).
Remove capscrew (14), two clamps (15) and (16), and oil line (13) from engine mount bracket (17).
Remove locknut (9), washer (8), capscrew (19), lockwasher (18), two clamps (6) and (7), and
oil line (13) from oil lines bracket (23). Discard locknut (9) and lockwasher (18).
Remove three tiedown straps (5), (10), and (28) from engine oil and power steering lines.
Inspect adapter (11) and oil cooler port (30) for damaged threads or cracks. If damaged, replace.