TM 1-1520-238-23
6-306
6.69.
MAIN TRANSMISSION ACCESSORY PUMP OIL PRESSURE SWITCH
REMOVAL/INSTALLATION
6.69.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.69.2. Initial Setup
Tools:
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
Petrolatum (item 138, App F)
Wire (item 222, App F)
Personnel Required:
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
2.2
Access panel R200 removed
WARNING
FLIGHT SAFETY PART
The main transmission is a flight safe-
ty part. Failure to follow maintenance
instructions may result in serious
injury or death of crewmembers
and/or serious damage to the
helicopter.
6.69.3. 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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