TM 1-1520-238-23
7-32
7.9.
PRIMARY HYDRAULIC PUMP PRESSURE CHECK VALVE REMOVAL/INSTALLATION
7.9.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
7.9.2. 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)
Materials/Parts:
Packing
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 panel L200 removed
7.3
Primary hydraulic system vented
7.9.3. Removal
a. Remove pressure hose (1) from check valve
(2).
(1) Place rags under check valve (2) to catch
hydraulic fluid spills.
(2) Hold check valve (2). Remove nut (3).
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M04-736-1
2
M04-736-2
3
1
