TM 9-2330-381-14
2-25.
HIGHWAY DRIVING
WARNING
Precautions must be exercised during highway travel to be sure that all bridges
and underpasses can be negotiated or injury to personnel and damage to
equipment may result.
When towing a payload, check security of load and tighten tiedowns at every rest
and maintenance stop or injury to personnel and damage to equipment may result.
Ensure position of assistant is known at all times. Failure to observe this warning
may result in injury to personnel.
All safety requirements, such as hazard flags, road permits, flashing warning
lights, escort vehicles, and wide load signs must be met. Failure to comply could
result in injury to personnel and damage to equipment.
Under no circumstances shall speeds exceed the following:
Highway ................................. 45 mph (72 km/h)
Secondary ............................... 40 mph (64 km/h)
Off-road ................................... 15 mph (24 km/h)
a. Driving. When towing the semitrailer, overall length of tractor and semitrailer must be kept in mind when passing
other vehicles. During trailering operations, acceleration rate is reduced and stopping distance is increased.
WARNING
The HETS tractor and semitrailer combination does not track in the same may as
standard or conventional tractor-trailer combinations. Operators must know and
understand this prior to operating HETS on public access roads.
Wide,
conventional tractor-trailer turns may result in injury to personnel and damage to
equipment.
When making sharp turns, the semitrailer may swing beyond normal turning
radius. Failure to observe this warning may result in injury to personnel and
damage to equipment.
b. Turning with M911 or M1070 tractor. With the M911 or M1070 tractor and M1000 semitrailer combination, turning
the tractor also causes the semitrailer wheels to turn. The semitrailer may swing out into the lane of on-coming
traffic. Operator must ensure lane is clear prior to making turn. Left and right turns should be made tighter than
conventional tractor-trailer turns.
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