1-76
1-76 CHANGE FROM MIL-L-7808 TO MIL-L-23699 LUBRICATING OIL (Continued)
3. Service engine oil system with lubricating
oil (E33) (Ref. Task 1-74).
4. Operate engine for 30 minutes to 1 hour after
engine reaches operating temperature (Ref.
TM 55-1520-240-10 or Task 1-107). This will
dislodge carbon and lacquer deposits.
5. Shut down engine (Ref. TM 55-1520 -
240-10 or Task 1-107).
6. Inspect main oil filter element. (Ref. Task
8-25). If contamination
of oil filter element is noted, drain oil from
engine (Ref. Task 1-75). Repeat steps 2 through
6. If little or no contamination of oil filter is
noted, drain oil from engine (Ref. Task 1-75)
and proceed with steps 7. and 8.
7. Service engine oil system with new
lubricating oil (E33) (Ref. Task 1-74).
8. Using marking Pencil (E34), mark engine to
indicate type of oil used. Release engine for
service and return to normal inspection
intervals.
INSPECT
9. Deleted.
10. Deleted.
11. Deleted.
FOLLOW-ON MAINTENANCE:
None
END OF TASK
Change 5
1-235/(1-236 blank)
