TM 55-2840-254-23
1-77
1-77 CHANGE FROM MIL-L-23699 TO MIL-L-7809 LUBRICATING OIL (Continued)
1. Drain lubricating oil (E33) from engine oil
system (Ref. Task 1-75).
2. Inspect and clean oil filters and strainers
(Ref. Tasks 5-19, 5-20, 8-2, 8-3, 8-18, 8-19,
8-25, 8-73, 8-74, 8-77, 8-78, 8-81, and 8-82),
Replace oil filter element (Ref. Tasks 8-23
and 8-27).
3. Service engine oil system with lubricating
oil (E32) (Ref. Task 1-74).
4. Operate engine until oil reaches operating
temperature (Ref. TM 55-1520-240-10 or Task
5. Shut down engine (Ref. TM 55-1520-240-10
or Task 1-107).
6. Inspect and clean main oil filter element
(Ref. Tasks 8-24 and 8-25).
7. Using marking pencil (E34), mark engine to
indicate type of oil used. Release engine for
service use and return to normal inspection
intervals.
INSPECT
8. Deleted.
9. Deleted.
10. Deleted.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
1-238
Change 4
