TM 55-1520-240-23-4
5-44
REMOVE HORIZONTAL HINGE PIN, PITCH-VARYING HOUSING AND PIN BEARINGS
5-44
INITIAL SETUP
Applicable Configurations:
All
Tools:
Powertrain Repairer’s Tool Kit, NSN
5180-00-003-5267
Horizontal Hinge Pin Pusher (T87)
Bolt, 3/8-24 Thread X 5 Inches
Drift (2), Brass, 1/2 Inch Diameter Flattened At One
End
Horizontal Hinge Pin Bearing Puller (T9)
Container, 2 Quart
Materials:
Grease (E190)
Pencil, Marking (E271)
Gloves (E186)
Personnel Required:
Aircraft Powertrain Repairer (2)
References:
Task 5-42
Equipment Condition:
Off Helicopter Task
Horizontal Hinge Pin Bearing Caps Removed (Task
5-40)
Hub Oil Tank Removed (Task 5-15)
NOTE
Procedure is same to remove any
horizontal hinge pin, pitch-varying
housing, and pin bearing assembly.
There are three horizontal hinge
pins, six pin bearings, and three
pitch-varying housings on a
rotary-wing head. Forward head is
shown here.
5-187
