TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 382 of 1015
3-5. ENGINE
TM 9-2320-272-24-1
THIS TASK COVERS:
a. Draining Oil
b. Oil Filter Removal
d. Cleaning and Inspection
c. Filter Shell and Bolt Disassembly (M939/A1)
e. Filter Shell and Bolt Assembly (M939/A1)
f. Oil Filter Installation
INITIAL SETUP:
APPLICABLE MODELS
All
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
Torque wrench (Appendix E, Item 144)
MATERIALS/PARTS
Seal (Appendix D, Item 596)
Filter (M939A2) (Appendix D, Item 120)
Gasket (M939/A1) (Appendix D, Item 145)
Kit, filter (M939/A1) (Appendix D, Item 125)
Seal (M939/A1) (Appendix D, Item 594)
Drycleaning solvent (Appendix C, Item 71)
Oil, diesel (Appendix C, Item 41)
Rags (Appendix C, Item 58)
REFERENCES (TM)
LO 9-2320-272-12
TM 9-2320-272-10
TM 9-2320-272-24P
EQUIPMENT CONDITION
Parking brake set (TM 9-2320-272-10)
Hood raised and secured (TM 9-2320-272-10).
Right splash shield removed (M939A2)
(TM 9-2320-272-10).
Left splash shield removed (M939/A1)
(TM 9-2320-272-10).
GENERAL SAFETY INSTRUCTIONS
Store and dispose of used oil properly.
Do not perform task when engine is hot or drain
oil when hot.
Drycleaning solvent is flammable and toxic.
When cleaning with compressed air, wear
eyeshield and ensure source pressure does not
exceed 30 psi (207 kPa).
WARNING
Accidental or intentional introduction of liquid contaminants
into the environment is in violation of state, federal, and
military regulations. Refer to Army POL (para. 1-8) for
information concerning storage, use, and disposal of these
liquids. Failure to do so may result in injury or death.
Do not drain oil from engine or remove lines containing oil when
engine is hot. Doing so may result in injury to personnel.
NOTE
References to early model engines refer to engines with a serial
number before 444487830 used in M939A2 series vehicles.
NOTE
Have adequate drainage container ready to catch oil.
Perform steps 1 and 2 for M939/A1 series vehicles.
1.
Remove drainplug (2) from filter shell (1) and drain oil completely from filter shell (1).
2.
Install drainplug (2) in filter shell (1) and tighten drainplug (2) 25-35 lb-ft (34-47 N•m).
3.
Remove drainplug (4) and seal (5) from oil pan (3) and drain oil. Discard seal (5).
3-18
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