TM 1-1520-238-23
Change 4
6-587
6.143.
TAIL ROTOR GEARBOX FORWARD GEAR FITTING REPLACEMENT
6.143.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.143.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, 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)
0 - 300 inch-pound 3/8-inch drive click type torque
wrench (item 439, App H)
Materials/Parts:
Brush (item 34, App F)
Primer coating (item 147, App F)
Sealing compound (item 158A, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
6.142
Tail rotor gearbox forward strut 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.
6.143.3. Removal
a. Remove forward gear fitting (1) from stabilizer
(2).
(1) Remove sealing compound from fitting (1),
bolts (3), and washers (4) (para 1.47).
(2) Remove four bolts (3) and washers (4).
(3) Remove fitting (1) from stabilizer (2).
GO TO NEXT PAGE
M04-3790-4
3
4
1
2
2
M04-3790-1A
