TM-9-2320-272-10
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; OPERATOR'S MANUAL
SEPTEMBER 2004
CHANGE 2
TM-9-2320-272-10 - Page 27 of 481
TM 9-2320-272-10
1-10
1-12. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS
a.
This paragraph contains information regarding the major components that
makeup the specific models of the M939, M939A1, and M939A2 series vehicles.
These are:
(1)
Chassis
(2)
Cab
(3)
Body
(4)
Engine
(5)
Fuel Tank
b.
Chassis Types:
(1)
M927/A1/A2, M928/A1/A2, and M934/A1/A2 model vehicles utilize the 215
in. (546.1 cm) Extra Long Wheelbase (XLWB) chassis. This facilitates
transporting of large and awkward loads.
(2)
M923/A1/A2, M925/A1/A2, and M936/A1/A2 model vehicles utilize the
179 in. (454.7 cm) wheelbase.
(3)
M929/A1/A2, M930/A1/A2, M931/A1/A2, and M932/A1/A2 model vehicles
utilize the 167 in. (424.2 cm) wheelbase.
c.
Cab Assembly: all models use the same cap assembly even though minor
changes are made to accommodate options for specific models.
d.
Body Assembly:
(1)
M923/A1/A2 and M925/A1/A2 model vehicles use the same cargo body.
(2)
M927/A1/A2 and M928/A1/A2 model vehicles uses the same extended
cargo body.
(3)
M929/A1/A2 and M930/A1/A2 model vehicles use the dump body.
(4)
M931/A1/A2 and M932/A1/A2 model vehicles use the fifth wheel approach
plate and check plate.
(5)
M934 and M939/A1/A2 model vehicles use the van body.
(6)
M936 and M939/A1/A2 model vehicles use the crane and body assembly.
e.
Engine Type: All M939/A1 series vehicles employ the Cummins – NHC 250
engine, while M939A2 series vehicles use the Cummings – 6CTA8.3 engine.
f.
Fuel Tank Types:
(1)
Initial issue tanks used on M939/A1 series vehicles are top fill, but
replacement tanks may be substituted with M939A2 series vehicle side fill
fuel.
(2)
Fuel tank quantities and capacities differ between models. Refer to table
1-6 for specific information on your model.
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