TM 1-1520-238-23
Change 1
7-15
7.4.
PRIMARY HYDRAULIC PUMP REMOVAL/INSTALLATION
7.4.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
7.4.2. 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)
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 L200 removed
7.3
Primary hydraulic system vented
CAUTION
To prevent moisture and foreign matter
from damaging the hydraulic system, be
sure to install protective covers on all
lines, ducts, ports, tubes, and connectors
immediately after removing.
7.4.3. Removal
a. Remove hose (1) from nipple (2).
(1) Place rags under primary hydraulic pump (3)
to catch hydraulic fluid spills.
(2) Hold nipple (2). Remove nut (4).
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M04-738-2
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