TM 1-1520-238-23
7-294
7.73.
UTILITY HYDRAULIC MANIFOLD SOLENOID VALVE REPLACEMENT
7.73.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
7.73.2. Initial Setup
Tools:
Aircraft mechanic’s 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)
5/32-inch hexagon x 1/4-inch drive screwdriver socket
wrench attachment (item 324, App H)
10 - 50 inch-pound 1/4-inch drive click type torque
wrench (item 434, App H)
Materials/Parts:
Packing (3)
Cloth (item 52, App F)
Hydraulic fluid (item 92, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access doors T250L, T250R, T290L,
T290R, L325, and R325 opened
7.57
Utility hydraulic system vented
NOTE
This task is typical for brake on, brake off,
or override solenoid valves on the utility
hydraulic manifold.
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M04-904-1
M04-904-3
BRAKE OFF
OVERRIDE
BRAKE ON
