TM 55-1520-240-23-5
6-189
REMOVE COMBINING TRANSMISSION SUMP
6-189
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Materials:
Paper Tags (E264)
Barrier Material (E80)
Tape (E388)
Personnel Required:
Medium Helicopter Repairer
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Aft Pylon Doors Open (Task 2-2)
Oil Cooler Fan and Shaft Removed (Task 6-182)
Combining Transmission Oil Cooler Removed (Task
6-187)
Aft Pylon Lower Fairing Removed (Task 2-2)
Sump Drained (Task 6-168)
REMOVE SUMP COVER
1.
Tag and disconnect electrical connector (1) from
oil pressure switch (2).
2.
Disconnect oil hose (3) from union (4).
3.
Disconnect breather hose (5) from reducer (6) on
each side of sump cover (7).
4.
Loosen drainline clamp (8). Disconnect drainline
(9) from nipple (10).
5.
Remove nuts (11) washers (12), and bolts (13)
from 23 places around sump cover (7). Keep clip
(14) with drainline (9).
6-625
