TM 9-2320-363-20-1
Section II. EQUIPMENT DESCRIPTION AND DATA
OVERVIEW
This section contains information that may be useful when performing unit maintenance tasks on the M915 family
of vehicles. For additional information, refer to TM 9-2320-363-10.
EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
Characteristics:
The M915A2 is used to transport M871, M872, and M1062 semitrailers on line haul missions.
The M916A1 and M916A2 are used to transport M172 and M870 semitrailers carrying
engineering/construction equipment.
The M917A1 and M917A1 w/MCS dump truck is used to transport, dump or spread aggregate, hot
mix asphalt and similar materials over primary and secondary roads and off road.
Capabilities and Features:
All models feature a 4-channel Anti-Lock Brake System (ABS). The ABS is an electronically
controlled braking system that provides the operator significantly improved handling and
controllability. The ABS aids in preventing skids during emergency stops and also provides even
braking where snow, ice, and heavy water are present.
While operating on Class I roads, a fully loaded M915A2 tractor can maintain a speed of 55 mph
(88.5 kph) on level roads and 29 mph (40.22 kph) while ascending a 3 percent grade.
While operating on Class I roads, all other vehicles can maintain a speed of 54 mph (85.3 kph) on
level roads and 25 mph (40.22 kph) while ascending a 3 percent grade.
All models can start and climb a 20 percent grade at Gross Combination Weight Rating (GCWR) in
both forward and reverse directions. All models are capable of operating on side slopes up to 10
percent where adequate traction is available.
All models can ford water up to 20 in (51 cm) deep for 5 minutes without damage or requiring
maintenance before operations can continue.
All models are capable of operation in temperatures from -25°F to +125°F (-320C to +52°C), and to -
40°F (-40°C) with Arctic kit installed.
Average cruising ranges at GCWR with a full tank of fuel will vary based on many conditions. For on-
highway use under full power at 2100 rpm with 400 hp, the fuel rate will be 20.5-21.4 gph (77.6-81.0
Iph). Varying loads; prolonged idle, such as using the Power Take-Off (PTO); off-road driving; and
climatic conditions will affect the rate of fuel consumption.
The minimum turning diameter, curb-to-curb, is 53 ft 9 in. (16.44 m) for the M915A2, 80.0 ft (24.38
m) for the M916A1 and M916A2, and 38.9 ft (11.9 m) for the M917A1 and M917A1 w/MCS.
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