LO-9-2350-266-12
CARRIER, PERSONNEL, FULL TRACKED, ARMORED FIRE SUPPORT, M981
LUBRICATION ORDER
MARCH 1990
LO-9-2350-266-12 - Page 13 of 48
LUBRICANTS/
COMPONENTS
Abov e
OE/HDO
LUBRICAT-
MIL-L-2104D)
ING OIL,
INTERNAL
OEA
COMBUSTION
MIL-L-46167)
ENGINE
Differential
# FOR ARCTIC OPERATION
KEY
CAPAC-
ITIES
(AP-
PROX)
EXPECTED
TEMPERATUR E
+32° F
(Above
0°C)
+40° F
0°F to
-65° F
-10° F (-18° C
(+ 5°C
-54°C )
-23°C )
OE/
HD O
15/4(
20 qts
REFER TO FM 9-207
OE/
OEA
HDO-
10
INTERVALS
D - Daily
S - Semi-
annu-
ally, or
Every
150
Hours
or
1500
Miles
NOTES:
WARNING
Dry cleaning solvent burns easily, can cause skin rash, and can give off harmful
vapors. To avoid injury, keep away from open fire and use in well-ventilated area.
Wear protective clothing and rubber gloves.
DIFFERENTIAL BREATHER. Every 150 hours, 1500 miles, or semiannually, remove and clean
beather with dry cleaning solvent P-D-680. Then dry and install breather (TM 9-2350-261-20).
NOTE
Do not use AOAP on differential. There are metal particles in brake shoes material
that can give a false reading.
DIFFERENTIAL LEVEL. Before operation, check differential oil level to be sure there is enough
oiI for warmup operation. Add oil (OE/HDO or OEA) only if level is below safe range.
DIFFERENTIAL DRAIN. Every 100 hours, 1500 miles, or semiannually, drain differential.
rain only when hot (after operation). To drain, remove front hull drain plug (TM 9-2350-261-20)
and differential drain plug. Check differential drain plug for metallic particles. If metal chips are
found, notify direct support maintenance.
DIFFERENTIAL OIL FILTER. Filter is to be cleaned each time a differential oil change is
required. Every 150 hours, 1500 miles, or semiannually, clean differential oil filter. Remove four
nuts, flat washers, and screws securing filter body on head, and remove body (TM
9-2350-261-20). Remove element, clean housing and element with dry cleaning solvent
P-D-680, and install element and housing. If element or preformed packings are unserviceable,
stall new packings and element using differential oil filter kit. Install element using differential oil
ter kit. Install element and body on head, and secure with four screws, flat washers, and nuts.
Tighten nuts to 4 to 6 pound-feet torque. After filling differential, check for oil leaks at filter with
engine running.
Card 14 of 51/52 blank)
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