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 718 of 1015
TM 9-2320-272-24-1
3-133. TRANSMISSION OIL SERVICE INSTRUCTIONS
THIS TASK COVERS:
a. Draining Oil
b. Oil Filter Removal
c. Oil Filter Installation
d. Governor Filter Removal
e. Governor Filter Installation
f. Replenishing Oil
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
All
LO 9-2320-272-12
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
Torque wrench Appendix E, Item 144)
MATERIALS/PARTS
Governor filter (Appendix D, Item 249)
Governor filter O-ring (Appendix D, Item 250)
Rubber O-ring (Appendix D, Item 429)
Transmission oil filter (Appendix D, Item 699)
Transmission oil pan gasket (Appendix D, Item
159)
Tiedown strap (Appendix D, Item 690)
Fiber washer (Appendix D, Item 119)
Lubricating oil (Appendix C, Item 49)
Drycleaning solvent (Appendix C, Item 71)
TM 9-2320-272-10
TM 9-2320-27224P
EQUIPMENT CONDITION
Parking brake set (TM 9-2320-272-10).
GENERAL SAFETY INSTRUCTIONS
l
Exhaust gases can kill. Operate vehicle only in
well-ventilated area.
l
Store or dispose of used oil properly.
l
Keep fire extinguisher nearby when using
drycleaning solvent.
WARNING
l
Exhaust gases can kill. Operate vehicle only in a well-ventilated
area. Failure to do this may result in injury to personnel.
l
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.
a. Draining Oil
NOTE
Do not shift transmission through driving gear ranges when
warming transmission oil. This is a procedure used only when
replenishing transmission oil.
1.
Start engine (TM 9-2320-272-10), operate at 700-750 rpm until transmission oil reaches normal
operating temperature of 120°-220°F (49°-105°C), then shut off engine.
NOTE
Have drainage container ready to catch oil.
2.
Remove drainplug (3) and fiber washer (2) from right rear of transmission oil pan (1) and drain oil.
Discard fiber washer (2).
NOTE
Inspect oil for grit, foaminess, and/or milkiness. If present, notify
your supervisor.
3.
Install new fiber washer (2) and drainplug (3) in transmission oil pan (1).
3-354
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