TM 1-1520-238-23
7-240
Change 1
7.58.
UTILITY HYDRAULIC PUMP REMOVAL/INSTALLATION
7.58.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
7.58.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
5/16 x 3/8-inch drive box end torque wrench adapter
(item 12, App H)
Light duty laboratory apron (item 27, App H)
1 1/4 x 1/2-inch drive open end box socket wrench
crowfoot attachment (item 74, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
1 & 1 1/8-inch open end wrench (item 417, App H)
Materials/Parts:
Gasket
Packing (5)
Grease (item 88, App F)
Hydraulic fluid (item 92, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1500-204-23
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access panel R200 removed
7.3
Utility hydraulic system vented
7.58.3. Removal
a. Remove tube (1) from utility hydraulic pump
(2) and bracket (3).
(1) Place rags under pump (2) to catch hydraulic
fluid spills.
(2) Hold union (4). Remove nut (5). Use crowfoot
and open end wrench.
(3) Hold union (4). Remove nut (6) and washer
(7). Use open end wrench.
(4) Hold reducer (8). Remove nut (9). Use open
end wrench.
(5) Remove tube (1).
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