TM 1-1520-238-23
4-453
4.142.
NO. 1 AND NO. 2 ENGINE POWER CONTROL SPINDLE GEARBOX BASEPLATE
REMOVAL/INSTALLATION
4.142.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
4.142.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
30 - 150 inch-pound 1/4-inch drive click type torque
wrench (item 435, 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 LN1 or RN1 opened
4.140
No. 1 engine power available spindle gear-
box removed or
4.141
No. 2 engine power available spindle gear-
box removed
NOTE
This task is typical for No. 1 or No. 2
engine gearbox baseplate.
4.142.3. Removal
a. Remove baseplate (1) from hydromechanical
unit (HMU) (2).
(1) Remove bolt (3) and washer (4).
(2) Remove baseplate (1).
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