TM 55-2835-209-23
Section II DRAIN APU OIL
6-2 DRAIN APU OIL
INITIAL SETUP
Tools:
Drain Adapter
Engine Repairman’s Tool Kit (T47)
Suitable Container
Personnel Required:
68B Aircraft Powerplant Repairer
Materials/Parts:
Machinery Towel (D20)
References:
Task 6-19
Equipment Conditions:
APU on Aircraft
General Safety Instructions:
Lubricating oils, DOD-L-85734,
MIL-L-23699 and MIL-L-7808,
contain materials hazardous to
health.
They produce paraly-
sis if swallowed or from pro-
longed skin contact. They may
burn if exposed to heat or
flames.
Wash hands thoroughly
after handling.
Use only with
proper ventilation.
1.
Remove inner portion of magnetic
5.
Using machinery towel (D20), wipe up
drain plug (1) from gearbox assembly
any residual oil.
by pushing in and turning counter-
clockwise.
1.1.
Inspect magnetic drain plug (1)
6.
Service APU (Task 6-19).
FOLLOW-ON MAINTENANCE: None.
2.
3.
4.
for debris.
The presence of debris on mag-
netic drain plug may be an in-
dication of abnormal wear or
part failure.
System should
be inspected.
Install drain adapter into magnetic
drain plug base and drain oil into
suitable bladder type container.
Remove drain adapter.
Install inner portion of magnetic
drain plug (1) by pushing in and
turning clockwise.
Change 1
6-3
