TM 1-1520-238-23
1-78
1.26.
APU OIL SYSTEM DRAINING AND SERVICING
1.26.1. Description
This task covers:
Draining. Servicing.
1.26.2. 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)
1-quart funnel (item 140, App H)
Chemical protective gloves (item 154, App H)
Lube drain kit (item 192, App H)
14-quart utility pail (item 222, App H)
Materials/Parts:
Packing
Lubricating oil (item 118, App F) or
Lubricating oil (item 119, App F)
Personnel Required:
67R
Attack Helicopter Repairer
References:
TB 55-9150-200-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access doors RN5, T250L, T250R, T290L,
T290R, and L325 opened
1.26.3. Draining
CAUTION
Do not mix lubricating oil (item 118,
App F) with lubricating oil (item 119,
App F) except in an emergency. The sys-
tem must be drained and refilled with the
proper oil as soon as possible if it be-
comes necessary to mix oils.
NOTE
Refer to TB 55-9150-200-24 for conver-
sion of oils MIL-L-23699 and MIL-L-7808.
Failure to perform the required checks
and services can result in contamination
of the affected oil system.
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