TM 9-2320-272-24-1
NOTE
Perform steps 1 and 2 for oil filter on M939/A1 series vehicles
and step 3 for oil filter on M939A2 series vehicles.
Support oil filter shell while loosening center bolt. Lightly tap
filter shell with palm of hand to loosen from filter base.
1.
Loosen center bolt (9) until oil filter shell (11) can be removed from filter base (1), and remove oil
filter shell (11) from filter base (1).
2.
Remove oil filter element (3) and seal (2) from oil filter shell (11). Discard oil filter element (3) and
seal (2).
3.
Remove oil filter (13) from adapter (12). Discard oil filter (13).
1.
Remove center bolt retaining pin (4), filter element support (5), gasket (6), washer (7), and
spring (8) from center bolt (9) and oil filter shell (11). Discard gasket (6).
2.
Remove center bolt seal (10) and center bolt (9) from oil filter shell (11). Discard center bolt seal (10).
WARNING
Drycleaning solvent is flammable and toxic. Do not use near an
open flame and always have a fire extinguisher nearby when
solvents are used. Use only in well-ventilated places, wear
protective clothing, and dispose of cleaning rags in approved
container. Failure to do this may result in injury to personnel
and/or damage to equipment.
Eyeshields must be worn when cleaning with compressed air.
Compressed air source will not exceed 30 psi (207 kPa). Failure
to do 80 may result in injury to personnel.
Clean center bolt (9) and oil filter shell (11) with drycleaning solvent and dry with compressed air.
1.
2.
Inspect center bolt (9). Replace if threads are stripped.
3.
Inspect filter base (1). If cracked, nicked, or threads are stripped, notify DS maintenance.
4.
Inspect filter element support (5). Replace if cracked or grooved.
5.
Inspect spring (8). Replace if cracked or broken.
1.
Install new center bolt seal (10) and center bolt (9) in oil filter shell (11).
2.
Install spring (8), washer (7), new gasket (6), filter element support (5), and center bolt retaining
pin (4) on center bolt (9) and oil filter shell (11).
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