TM 1-1520-238-23
6-550
6.133.
TAIL ROTOR GEARBOX SHOULDERED SHAFT REMOVAL/INSTALLATION
6.133.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.133.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
Materials/Parts:
Packing
Grease (item 88, App F)
Petrolatum (item 138, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access fairings L510, L530, and L540 re-
moved
6.14
No. 6 tail rotor drive shaft removed
6.15
Tail rotor gearbox input coupling removed
6.138
Forward temperature sensor removed
WARNING
FLIGHT SAFETY PART
The tail rotor gearbox is 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.
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