TM 55-1520-240-23-5
6-150
INSTALL AFT TRANSMISSION MAIN OIL PUMP
6-150
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Torque Wrench, 30 to 150 Inch-Pounds
Workstand
Materials:
None
Parts:
Packing
Personnel Required:
Medium Helicopter Repairer (2)
Inspector
References:
TM 55-1520-240-23P
Equipment Condition:
Tiedown Line Installed On One Forward Blade (Task
1-26)
1.
Install packing (1) on pump (2).
Rotary-wing blades can seriously
injure personnel. Make sure area
around helicopter is clear of personnel
before turning blades.
2.
Install pump (2) slowly and carefully on three
studs (3). Have helper pull blade (4) around with
tiedown line (5) as needed to align splines in
transmission with splines of pump drive shaft (6).
3.
Install three washers (7) and nuts (8) on studs
(3). Torque nuts to 60 inch-pounds.
INSPECT
FOLLOW-ON MAINTENANCE:
Service aft transmission with oil (Task 1-54).
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
6-532
