TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 343 of 1417
Table
1.
Field Preventive Maintenance Checks and Services - Continued.
ITEM
NO.
INTERVAL
ITEM TO BE
CHECKED OR
SERVICED
PROCEDURE
EQUIPMENT
NOT READY/
AVAILABLE IF:
12
Semiannual
Cab
Components
WARNING
If transmission oil temperature is above
220°F (104°C), allow transmission oil to cool
before removing dipstick. Failure to comply
may result in injury or death to personnel.
CAUTION
•
Do not remove transmission dipstick
before cleaning dirt away from
access plate, filler tube, and dipstick.
Dirt may enter and damage
transmission.
•
Do not overfill transmission. Internal
transmission component damage
will result.
•
Change transmission oil when
contamination by fuel, water, or other
foreign materials is evident. Failure
to do so may result in failure of
internal transmission components.
•
Shut off engine if transmission
exceeds 300°F (149°C). Continuing
to operate transmission under these
conditions may result in failure of
internal transmission components.
NOTE
•
Steps (a) through (c) apply to
M939/A1 series vehicles only.
•
Transmission dipstick and
temperature sending unit cannot be
accessed through cab floors on
M939A2 series vehicles.
a.
Open access door in floor cab. Lubricate access
door hinge every 1,000 mi (1,600 km) or monthly.
Whichever occurs first (Volume 5, WP
0820).
b.
Inspect transmission dipstick and oil:
(1)
Check for evidence of metal particles. Notify
your supervisor if metal particles are found.
TM 9-2320-272-23-2
0207
0207-8
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