TM 1-1520-238-23
6-36
Change 4
6.8.
NO. 4 TAIL ROTOR DRIVE SHAFT, DAMPER, AND ANTI-FLAIL SUPPORT
REMOVAL/INSTALLATION
6.8.1. Description
This task covers:
Removal. Cleaning. Inspection. Adjustment. Repair. Installation.
6.8.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
#2 phillips screwdriver bit (item 33, App H)
Chemical protective gloves (item 154, App H)
1/4-inch drive screwdriver bit holder (item 175, App H)
1 1/4-inch blade putty knife (item 199, App H)
Adjustable air filtering respirator (item 262, App H)
0.0 - 50.0-pound weighing scale (item 273, App H)
30 - 150 inch-pound 1/4-inch drive click type torque
wrench (item 435, App H)
0 - 30 inch-pound 1/4-inch drive dial indicator torque
wrench (item 445, App H)
Materials/Parts:
Adhesive (item 3, App F)
Cloth (item 51, App F)
Corrosion preventive compound (item 62A, App F)
Methyl ethyl ketone (item 124, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
Two persons to assist
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1500-204-23
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
6.6
Forward hanger bearing coupling removed
2.2
Access fairings R410 and T325 removed
2.84
Catwalk removed
WARNING
FLIGHT SAFETY PART
The No. 4 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 forming any type of maintenance on
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
