LO 9-2350-247-12
LUBRICATION ORDER
(Supersedes LO 9-2350-247-12, March 1982)
8 JULY 1994
KEY
EXPECTED
REFILL
TEMPERATURES*
INTERVALS
CAPACITY
0F
+40F
(APPROX)
Above
to
to
32F
-10F
-65F
AF - After
OE/HDO (MIL-L-2104C) LUBRICATING OIL,
OE/
OE/
OEA
OR OEA (MIL-L-46167) INTERNAL COMBUSTION
HDO-30 HDO-10
S - 150 Hours,
ENGINE
1,500 Miles
or Semi-annually
Transfer Gearcase
2.5 qt.
18 qt.
Differential
OC - On Condition
For Arctic Operation Refer to FM 9-207
NOTES
2. DIFFERENTIAL (M548A1/M1015A1). After opera-
1. TRANSFER GEARCASE (M548A1/M1015A1). After
tion, check differential oil level to make sure there is
operation, check transfer gearcase oil level for between
sufficient oil for warm-up operation. On carriers with old
ADD and FULL marks on gauge rod. Add oil (OE/HDO)
style dipstick, add oil to differential if oil is below the letter
as necessary. Every 150 hours, 1,500 miles, or semi-
"F" in the word "FULL." Never add oil if level is above the
annually, drain gearcase oil. Drain only when hot after
Ietter "F". On M548A1 carriers, add oil only if level is
operation. To drain, remove hull access cover (TM 9-
below safe range. Add oil (OE/HDO) as required. Every
2350-247-20) and gearcase drain plug. Inspect oil being
25 hours of operation or 30 days (whichever comes first),
drained for metallic particles. If metal chips are found in
obtain a sample of oil. Send the sample to the nearest
oil, notify direct support maintenance. Drain at least 15
AOAP Laboratory. See TB 43-0106 for sampling instruc-
minutes, clean and install gearcase drain plug. Fill trans-
tions. When AOAP Laboratory support is not available,
fer gearcase with approximately 2 1/2 quarts of oil (OE/
drain differential every 150 hours, 1,500 miles, or semi-
HDO). Make sure gearcase filler cap is closed and
annually. Drain only when hot after operation. To drain,
breather hole in gauge rod tube is open. Start engine:
remove front hull plug (TM 9-2350-247-20) and differen-
operate for 1 minute. Stop engine, and check oil level.
tial plug. Inspect differential drain plug for metallic par-
Level should be between FULL and ADD marks on
ticles. If metal chips are found, notify direct support
gauge rod. INSTALL BOTTOM ACCESS COVER SE-
maintenance. Clean and install drain plugs. Service oil
CURELY.
filter. Remove gauge rod from housing, add oil (OE/
HDO) (refill with 18 quarts), and check level.
Card 13 of 40
