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 TM 9-2330-331-14&P
EQUIPMENT DESCRIPTION AND DATA
EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
1. The M872A4 Series Flatbed Semitrailer is a cargo hauling semitrailer designed to carry containerized or
breakbulk cargo.
2. The semitrailer is designed to be towed by the M915 Series 6 x 4 Truck, Tractor.
WARNING
M915 and M915A1 tractors (without ABS) pulling an empty M872A4
trailer have shown a tendency to veer out of the driving lane during
hard braking under dry conditions. Speeds above 35 mph under
hard braking will require the driver to quickly compensate steering
for tractor/trailer instability. Reduce speed even further under wet
and slippery conditions which can also cause tractor/trailer instability.
Failure to follow this warning could result in injury to personnel or
damage to equipment.
M915A2, M915A3 and M915A4 tractors (without functioning ABS) pulling
an empty M872A4 trailer have shown a tendency to veer out of the
driving lane during hard braking under dry conditions. Speeds above
35 mph under hard braking will require the driver to quickly compensate
steering for tractor/trailer instability. Reduce speed even further under
wet and slippery conditions which can also cause tractor/trailer instability.
When the mission is complete, report to Organizational Maintenance to
fix the ABS fault and restore all ABS capabilities. Failure to follow this
warning could result in injury to personnel or damage to equipment.
The Family of Medium Tactical Vehicles (FMTV), 1088 Basic/A1, 5 ton
tractors are not authorized to tow the M872A4 trailer. Use of the M818
and M931/M932 Basic/A1/A2, 5 ton tractors are limited to towing a
non-payloaded M872A4 for yard use only and at a reduced speed of
5 mph. Failure to follow this warning could result in injury to personnel
or damage to equipment.
3. The semitrailer is equipped with:
a. A 12 and 24 volt electrical system capable of operating in standard or blackout modes.
b. Automatic emergency braking in the event the semitrailer breaks away from the towing vehicle.
c. Landing gear to provide support for the front of semitrailer when uncoupled from towing vehicle.
d. Three axles with dual-mounted wheels and leaf spring suspension, including walking beams and
radius rods, to absorb road shock.
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