TM 55-1520-240-23-5
6-149
REMOVE AFT TRANSMISSION MAIN OIL PUMP
6-149
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Bolt, 1/4-28, 3 Inches Long, 1-1/2 Inch
Thread Length (2)
Workstand
Container, 2 Quart
Materials:
None
Personnel Required:
Medium Helicopter Repairer (2)
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Baffles Under Aft Transmission Open (Task 2-2)
Aft Transmission Drip Tray Removed (Task 2-3)
Cargo Ramp Open and Level (Task 2-2)
1.
Remove three nuts (1) and washers (2) from
pump (3).
2.
Install two 1/4-28 bolts (4) in holes (5) in end of
pump (3). Threaded length of bolts shall be at
least 1-1/2 inches.
3.
Turn bolts (4) to jack pump (3) out of transmission
(6). Remove pump. Use container to catch
spilled oil.
4.
Remove bolts (4) and packing (7) from pump (3).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
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