TM 1-1520-238-23
6-24
Change 4
6.5.
NO. 3 TAIL ROTOR DRIVE SHAFT REMOVAL/INSTALLATION
6.5.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.5.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
7/16 x 3/8-inch drive torque wrench adapter (item 22,
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)
30 - 150 inch-pound 3/8-inch drive click type torque
wrench (item 441, App H)
Materials/Parts:
Corrosion preventive compound (item 62A, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
One person to assist
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access doors T250L, T250R, T290L,
T290R, and L325 opened
2.84
Forward catwalk folded back
WARNING
FLIGHT SAFETY PART
The tail rotor drive shaft 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.
CAUTION
Exercise care and undertake protective measures when handling or performing any type of maintenance
on the tail rotor drive shafts. All surface areas are critical. Accidental dents or scratches caused by
improper handling may render part unserviceable.
To prevent damage to tail rotor drive shaft, ensure that work area is clean and that part is placed on a soft
and adequately protected working surface.
GO TO NEXT PAGE
