TM 1-1520-238-23
3-75
3.21.
MAIN LANDING GEAR SHOCK STRUT CYLINDER EXTERNAL LEAKAGE REPAIR
3.21.1. Description
This task covers:
Fluid Fill Coupling Packing Replacement. Outboard Bleed Plug Packing Replacement. Inboard
Bleed Plug Packing Replacement. Lower Plug Packing Replacement.
3.21.2. Initial Setup
Tools:
Hydraulic tool kit (item 384, App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
Materials/Parts:
Packing (4)
Hydraulic fluid (item 93, App F)
Wire (item 224, App F)
Personnel Required:
68H
Aircraft Pneudraulics Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access fairing L140 removed
3.20
Shock strut deflated
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.
GO TO NEXT PAGE
