TM 9-2320-260-20
Table 2-1. Unit Level Preventive Maintenance Checks and Services (Contd).
NOT FULLY
ITEM TO
PROCEDURE
ITEM
INTERVAL
MISSION
CHECK/
NO.
CAPABLE IF:
SERVICE
EXPECTED TEMPERATURES
+40eF TO -65F
+40F TO -15F
ABOVE 15F
(ABOVE -9C)
(+4C TO -26C
(+4C TO -54C)
OEA
OE/HDO 10
OE/HDO 30
OE/HDO - Lubricating oil, internal
combustion engine
(MIL-L-2104)
OEA - Lubricating oil, internal
combustion engine (arctic)
(MIL-L-46167)
GO 80/90
GO 75
GO 80/90
GO - Lubricating oil, gear multi-
purpose (MIL-L-2105)
Rear axles Check each for overheating, which can indicate low
38
Semi-
annual
and differ- lubrication levels. If any of these components are over-
heated, check fluid level and add or fill if necessary
entials
(LO 9-2320-260-12).
a. Ensure grease fittings and plugs of axle housing (1)
are present and tight. Tighten if loose. Replace if missing.
b. Inspect axle housing (1) for cracks that could cause
leaks. Notify your supervisor if cracked.
c. Remove and clean axle housing breather valve (2).
1. Wipe area around breathei valve (2) with rag.
2. Remove breather valve (2) from axle housing (1).
WARNING
Drycleaning solvent is flammable and will not be
used near open flame. Use only in well-ventilated
places. Failure to do so may result in injury to
personnel.
3. Clean breather valve (2) with drycleaning solvent
and dry with a clean rag.
4. Press breather valve (2) to confirm breather crimp
cap is under spring tension.
5. Replace breather valve (2) if clogged or no spring
tension is evident.
6. Oil breather valve (2) sparingly with OE/HDO.
7. Install breather valve (2) in axle housing (l).
d. Lubricate with OE/HDO every 1,000 mi (1,609 km).
If vehicle does not accumulate 1,000 mi (1,609 km) in a
6-month period, lubricate at time of preventive
maintenance service.
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