TM 1-1520-238-23
6-126
6.26.
ENGINE NOSE GEARBOX METALLIC CHIP DETECTOR REMOVAL/INSTALLATION
6.26.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.26.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Electrical tool kit (item 378, 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 (2)
Petrolatum (item 138, App F)
Wire (item 226, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
68X
Armament/Electrical System Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
TM 55-1500-323-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
1.27
Engine nose gearbox oil sump drained
2.123
Engine nose gearbox fairings and shrouds
removed
NOTE
This task is typical for either No. 1 or No.
2 engine nose gearbox metallic chip de-
tector.
6.26.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot center circuit breaker panel, open LT
CAUT circuit breaker.
c. Enter CPG station (para 1.56). Observe all
safety precautions.
d. On CPG left console circuit breaker panel No.
1, open EMER BATT CAUT circuit breaker.
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M04-539-1
