TM 1-1520-238-23
7-378
7.99.
UTILITY PNEUMATIC ACCUMULATOR REMOVAL/INSTALLATION
7.99.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
7.99.2. 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:
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, and L325 opened
7.57
Utility hydraulic system vented
1.38
Utility hydraulic accumulator vented
7.99.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot center circuit breaker panel, open
EMERG HYD circuit breaker.
c. Remove tube (1) from union (2).
(1) Hold union (2). Remove nut (3).
d. Unlatch forward clamp (4).
(1) Loosen nut (5). Unlatch tee bolt (6) from
sleeve (7).
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M04-912-2
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