TM 55-1520-240-23-4
5-90
ADJUST SHOCK ABSORBER LENGTH
5-90
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Setting Fixture (T106)
Torque Wrench, 0 to 600 Foot-Pounds
Open End Wrench, 1-5/16 Inch
Crowsfoot, 1-5/16 Inch
Materials:
Lockwire (E231)
Personnel Required:
Medium Helicopter Repairer (2)
Inspector
References:
TM 55-1520-240-23P
Equipment Condition:
Battery Disconnected (Task 1-39)
Electric Power Off
Hydraulic Power Off
Rotor Blade Positioned Over Fuselage
One Forward and One Aft Rotor Blade Tied Down
(Task 1-26)
Forward or Pylon Work Platform Open (Task 2-2)
Shock Absorber Removed (Task 5-87)
NOTE
The procedure is the same to adjust
any shock absorber.
1.
On helicopters without 50 install sliding bushing
(1) inside the bushing in lower inboard lug (2).
NOTE
On helicopters with 50 bushings are
part of the rotor head.
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