TM 1-1520-238-23
15-138
Change 1
15.38.
APU HYDRAULIC DRAIN HOSE REMOVAL/INSTALLATION
15.38.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
15.38.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, 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)
0 - 30 inch-pound 1/4-inch drive dial indicator torque
wrench (item 445, App H)
Materials/Parts:
Packing (2)
Hydraulic fluid (item 92, App F)
Petrolatum (item 138, App F)
Wire (item 226, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
15.41
APU enclosure upper center cover removed
WARNING
APU is easy to start. Disconnect bat-
tery. Remove all other electrical power
before performing any maintenance in
this area. Death or serious injury
could result if APU starts. If injury oc-
curs, seek medical aid.
15.38.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot center circuit breaker panel, open
FUEL APU and APU HOLD circuit breakers.
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M04-2121-10A
