TM 9-6115-664-13&P
Section I. LUBRICATION INSTRUCTIONS
4-1. GENERAL.
a.
These lubrication instructions are for unit level (O) maintenance personnel. Lube intervals (on-condition or hard
time) are based on normal operation. Lube more during constant use, and less during inactive periods. Use correct
grade of lubricant for seasonal temperature expected.
CAUTION
Always wipe clean oil filler components before starting your lube service. Never
use the wrong type or grade of oil. Never use too much oil, as overfilling will
cause spillage and harm engine components.
b.
The engine oil filter shall be changed when:
It is known to be contaminated or clogged.
The prescribed hard time interval has arrived.
Engine oil is drained or changed.
c.
Open oil drain valve (1, Figure 4-1) and drain engine oil. Manually crank engine three revolutions using hand
crank to drain remaining oil from oil cooler and lines. Close oil drain valve.
d.
Remove and replace engine oil filter (Para. 4-50).
e.
Remove oil filler cap (2) and service with appropriate oil. Check level using oil level dipstick (3). Start engine and
run for two minutes. Stop engine and recheck oil level. Service as required.
f.
This APU is not enrolled in the Army Oil Analysis Program (AOAP). HARDTIME INTERVALS APPLY.
g.
For equipment under manufacturer's warranty, hardtime oil service intervals shall be followed. Intervals shall be
shortened if lubricants are known to be contaminated or if operation is under adverse conditions (such as longer than
usual operating hours, extended idling periods, extreme dust).
Table 4-1. Lubricant Table for APU
Temperature Range
Lubricant Mil. Symbol
Specification
Capacity
Interval
Man-
hour
0 to +120 F (-18 to +49 C)
MIL-L-2104, 15W-40
2.7 QTS (2.6 LTRS)
300 hours
0.25
-25 to +15 F (-32 to -9.5 C)
MIL-L-46167, 5W-30
2.7 QTS (2.6 LTRS)
300 hours
0.25
4-3
