NOTES
6. ENGINE OIL FILTER. Filter element will
be replaced each time an engine oil
1. Do NOT mix OE/HDO-15W40 with single
change is required (TM 9-2350-261-20).
grade lubricants.
The filter element will be changed on hard
time interval. When the AOAP laboratory
2. Complete oil change with filters is re-
identifies to replace the oil, reset the hard
quired when converting from OE/HDO
time interval for the filter element.
15W40 to OEA (PE-30-1) to OE/HDO
15W40 or OEA; OEA to OE/HDO 15W40:
WARNING
etc.) in accordance with Temperature Key
Hot parts can burn you. Use care when
Chart.
you work near hot power unit.
CAUTION
NOTE
Engine can be damaged if filled above F
Drain oil only when hot after engine
(FULL) mark.
operation. Allow oil to drain thoroughly.
NOTE
Visual inspection of engine oil should
Park carrier on level ground to check oil
not be justification to replace oil. Modern
levels. Check/lubricate all oil and grease
detergent engine oils, especially in die-
fitting points after washing or fording.
sel engines, may appear dark/black in
3. ENGINE OIL LEVEL. Before starting en-
color due to additives.
gine, check for oil level between F and L
7. ENGINE OIL DRAIN AND FILTER ELE-
marks on gage rod. Oil level should not
MENT REPLACEMENT.
*RS be above F (FULL) mark or below L
(LOW) mark. *RE
a. Remove hull bottom access cover
(TM 9-2350-261 -20).
4. FREQUENCY OF AOAP SAMPLE. Every
b. Place a suitable container under engine
60 days, obtain a sample of engine oil
oil pan.
and send to the nearest AOAP Laborato-
ry. For additional reference see TB 43-
C. Remove plug from engine oil pan and
0210 and TM 9-2300-422-23&P. Routine
drain oil into container.
samples are to be submitted at pre-
d. Inspect plug and oil for metallic parti-
scribed intervals. Samples should be tak-
cles. If metal chips are found. notify
en as near the prescribed interval as
direct support maintenance.
possible. If sampling at the prescribed
e. Clean and install drain plug in engine oil
interval is not possible, a 10 percent
pan.
variance before or after the scheduled
f. Remove the driver's access panel
interval date, or miles for sampling is
(TM 9-2350-261 -10).
permissible. The need for On-condition oil
changes will be determined by the AOAP
g. Remove drain plug, filter cover, gasket.
Laboratory.
and filter element.
5. HARD TIME INTERVAL. If AOAP Labora-
tory support is not available, drain oil and
change filter element/gasket every 1500
miles or annually. The hard time interval
may be shortened if you are operating the
equipment under adverse conditions.
CARD 8 of 32
Change 3
