2-156
Change 1
NOTE
Runflat travel distance will improve with radial tire and rubber runflat. If additional travel is
required, tire tread may be cut away from tire.
Two tires flat – rear
20 mph maximum (32 kph)
30 mi (48 km)
One tire flat – any location
30 mph (48 kph)
30 mi (48 km)
Two tires flat – same side
30 mph (48 kph)
30 mi (48 km)
Two tires flat – front only
30 mph (48 kph)
30 mi (48 km)
Combination of Flat Tires
Recommended Vehicle Speed
Distance
2-39. ARCTIC OPERATION (ALL EXCEPT M1123 AND A2 VEHICLES)
a. General. Arctic winterization kits are for use during extremely cold
temperatures from 0°F (-18°C) to -50°F (-46°C).
CAUTION
• Do not operate arctic heater in ambient temperatures above
0°F (-18°C) or with temperature switch in “HI” position when
temperature is above -25°F (-32°C). Damage to equipment may
result.
• Close battery box door after 30 minutes of arctic heater operation
or when engine is running. Failure to do so may result in damage
to batteries.
2-38. RUNFLAT OPERATIONS
M998 series vehicles are equipped with runflat devices, allowing the vehicle to be
driven with one or more tires flat. For runflat operations, refer to table 2-4.
WARNING
• Do not exceed 30 mph (48 kph) during any runflat operation. Do
not exceed 20 mph (32 kph) with both rear tires flat. Loss
of vehicle control will occur, causing damage to equipment, injury
or death to personnel.
• Speeds indicated in table 2-4 are maximum and must be reduced
when traveling on secondary roads, cross-country, or with traffic
present. Failure to reduce speeds could cause loss of control of
vehicle, resulting in damage to equipment and injury or death to
personnel.
• When driving your vehicle, the existing conditions are constantly
changing. Never drive at a speed greater than is reasonable and
prudent for these conditions. Loss of vehicle control will occur
causing damage to equipment and injury or death to personnel.
CAUTION
• A wheel that has been run flat must be replaced and inspected by
unit maintenance as soon as possible before reuse, or damage to
equipment may result.
• Runflat operation may cause the tread to separate from the tire
and/or wheel. If abnormal handling is experienced, or noise such
as flapping or pounding around the wheel well occurs, the tread
needs to be cut away from the wheel before continuing operation.
Failure to do so could result in damage to the vehicle.
Table 2-4. Runflat Operation
TM 9-2320-280-10
