TM 1-1520-238-23
13-46
Change 1
13.15.
ECS SHUTOFF VALVE REMOVAL/INSTALLATION
13.15.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
13.15.2. Initial Setup
Tools:
Aircraft mechanics tool kit (item 376, 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)
Personnel Required:
67R
Attack Helicopter 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 doors T250L, T250R, T290L,
T290R, and L325 opened
13.15.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot aft circuit breaker panel, open ECS
AFT FAN circuit breaker.
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M04-721-1