TM 55-1520-240-23-4
5-36
REMOVE VERTICAL HINGE PIN BEARING
5-36
INITIAL SETUP
Applicable Configurations:
All
Tools:
Powertrain Repairer’s Tool Kit, NSN
5180-00-003-5267
Bearing Puller (T102)
Drift, Soft Aluminum, 1/2 X 1/2 X 12 Inches
Heater Gun
Materials:
Temperature Indicating Strips (E413)
Pencil, Marking (E271)
Paper Tag (E264)
Gloves (E186)
Kevlar Gloves (E187)
Personnel Required:
Aircraft Powertrain Repairer (2)
Equipment Condition:
Battery Disconnected (Task 1-39)
Electrical Power Off
Hydraulic Power Off
One Forward and One Aft Rotary-Wing Blade Tied
Down (Task 1-26)
Pylon or Forward Work Platform Open (Task 2-2)
Rotary-Wing Blade Removed As Required (Task
5-64)
Vertical Hinge Pin Oil Tank Removed As Required
(Task 5-28)
NOTE
Procedure is same to remove vertical
hinge pin bearing from any pitch
housing lug. Lower lug is shown.
1.
Matchmark inner bearing race (1) to lug liner (2).
Use marking pencil (E271).
2.
Push inner bearing race (1) out of lug liner (2).
Use gloves (E186). Remove thrust washer (3).
3.
Tag race (1) with rotary-wing head, color of pitch
housing, and lug from which race was removed.
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