TM 1-1520-238-23
7-292
7.72.
UTILITY HYDRAULIC MANIFOLD PRESSURE RELIEF VALVE REPLACEMENT
7.72.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
7.72.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
3/8 x 1/4-inch drive socket wrench adapter (item 7,
App H)
Light duty laboratory apron (item 27, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
30 - 150 inch-pound 1/4-inch drive click type torque
wrench (item 435, App H)
Materials/Parts:
Packing
Petrolatum (item 138, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access door R325 opened
7.57
Utility hydraulic system vented
7.72.3. Removal
a. Remove relief valve (1) from manifold (2).
(1) Remove valve (1).
(2) Discard valve (1) and packing (3).
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M04-3609-1
M04-3609-2
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