TM 1-1520-238-23
3-60
Change 8
3.18.
MAIN LANDING GEAR SHOCK STRUT REMOVAL/INSTALLATION
3.18.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
3.18.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Light duty laboratory apron (item 27, App H)
1/2 x 4-inch long driftpin (item 112, App H)
Chemical protective gloves (item 154, App H)
5-ton aircraft landing gear jack (item 183, App H)
Multimeter (item 215, App H)
Adjustable air filtering respirator (item 262, App H)
1 3/4 x 3/4-inch drive socket wrench socket (item 312A,
App H)
100 - 500 foot-pound 3/4-inch drive click type torque
wrench (item 438, App H)
Materials/Parts:
Cotter pin
Retaining ring
Acetone (item 1A, App F)
Antiseize compound (item 26, App F)
Solvent cleaning compound (item 46A, App F)
Epoxy primer coating kit (item 76A, App F)
Pad (item 130, App F)
Primer (item 143, App F)
Sealing compound (item 174, App F)
Personnel Required:
67R
Attack Helicopter Repairer
One person to assist
68X
Armament/Electrical System Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1500-204-23
TM 55-1500-323-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
1.66
Helicopter jacked (tripod jacks)
2.2
Access doors L135 and/or R135 opened;
fairings L140 and/or R140 removed
WARNING
FLIGHT SAFETY PART
The main landing gear shock strut contains a flight safety part. Failure to follow maintenance
instructions may result in serious injury or death of crewmembers and/or serious damage to
the helicopter.
The shock strut contains high pressure nitrogen. Bleed off shock strut pressure through
servicing valve before removing valve. Sudden release of high pressure nitrogen could
cause injury to personnel or damage to equipment. If injury occurs, seek medical aid.
Injury to personnel could occur during shock strut removal. Shock strut weighs about 45
pounds. Two persons are required to lift shock strut from helicopter. If injury occurs, seek
medical aid.
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