TM 1-1520-238-23
6-115
6.22.
ENGINE NOSE GEARBOX SIGHT INDICATOR REMOVAL/INSTALLATION
6.22.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.22.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
10 - 50 inch-pound 1/4-inch drive click type torque
wrench (item 434, App H)
Materials/Parts:
Packing
Petrolatum (item 138, App F)
Wire (item 226, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.123
Engine nose gearbox fairings and shrouds
removed
1.27
Engine nose gearbox oil sump drained
NOTE
This task is typical for either No. 1 or No.
2 engine nose gearbox sight indicator.
6.22.3. Removal
a. Remove gearbox sight indicator (1) from gear-
box (2).
(1) Remove lockwire from indicator (1).
(2) Remove indicator (1) from gearbox (2).
(3) Remove and discard packing (3).
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M04-537-1
M04-537-2
1
2
3
