TM 1-1520-238-23
4-459
4.144.
NO. 2 ENGINE LOAD DEMAND SPINDLE GEARBOX REMOVAL/INSTALLATION
4.144.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
4.144.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
5/16 x 3/8-inch drive torque wrench adapter (item 21,
App H)
30 - 150 inch-pound 3/8-inch drive click type torque
wrench (item 441, App H)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access door RN1 opened
4.9
Engine shroud removed
1.73
External power application – hydraulic (util-
ity)
4.144.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. Set collective stick (1) to full up.
(1) Rotate grip (2) counterclockwise to lock.
c. Remove external power – hydraulic (utility)
(para 1.72).
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M04-1181-7
