TM 55-1520-240-23-5
6-139
FLUSH AFT TRANSMISSION OIL SYSTEM
(Continued)
6-139
1.
Drain oil from aft transmission (Task 6-138).
2.
Remove and clean debris detection screen cap
(1) (Task 6-157). Install cap (Task 6-158).
3.
Replace main oil filter element (2) (Task 6-148).
Note position of indicator button (3).
4.
If indicator button (3) was extended, replace inlet
screens (4) (Tasks 6-155 and 6-156).
5.
Replace auxiliary oil filter (5) (Task 6-154).
6.
Service aft transmission with oil (Task 1-54).
7.
Have pilot perform ground run (TM
55-1520-240-10). When aft transmission oil
temperature stabilizes at normal, have pilot shut
down helicopter.
8.
Repeat steps 1 thru 6.
FOLLOW-ON MAINTENANCE:
Install aft transmission drip tray (Task 2-3).
Close baffles under aft transmission (Task 2-2).
Close cargo ramp (Task 2-2).
END OF TASK
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