TM 1-1520-238-23
4-220
SECTION III.
AIR SYSTEM MAINTENANCE
4.68.
NO. 1 OR NO. 2 ANTI-ICE VALVE AND BRACKET REMOVAL/INSTALLATION
4.68.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
4.68.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Light duty laboratory apron (item 27, App H)
1 1/4 x 3/8-inch drive open end socket wrench crowfoot
attachment (item 89, App H)
1 3/8 x 3/8-inch drive open end socket wrench crowfoot
attachment (item 94, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
150 - 750 inch-pound 3/8-inch drive click type torque
wrench (item 442, App H)
Materials/Parts:
Packing
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 door LN1 or RN1 opened
4.68.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot aft circuit breaker, open ENG ANTI-
ICE circuit breaker.
GO TO NEXT PAGE
M04-1041-1
