TM 9-2320-272-10
2-31.
CTIS OPERATION UNDER UNUSUAL CONDITIONS (Contd)
CAUTION
Speed must be limited to 10 mph (16 km/h) in the emergency mode to prevent damage to
tires.
f.
Emer Mode. When the mission requires maximum traction on extremely adverse terrain, select emergency
mode by depressing EMER (5) on the selector panel (1). The dash-mounted amber warning light will illuminate.
Operation in emergency mode is limited to ten minutes. Then the system automatically inflates to SAND (6); if the mission
demands extended emergency mode use, select EMER (5) as needed.
g.
Run Flat Mode. When the mission requires operation with a punctured tire, select run flat mode by
depressing RUN FLAT (3) on the selector panel (1). Run flat mode causes the CTIS to check tire pressure every fifteen
seconds. Normally, checks occur every fifteen minutes. Repeated damage detection results in repeated inflation
attempts. The punctured tire receives a new air supply each fifteen seconds. Operation in the run flat mode is limited to
ten minutes unless reselected. If no longer required, press the RUN FLAT (3) selector a second time.
2-32.
OPERATING IN EXTREME COLD
a.
General. The operator must always be alert to changes in weather. The operator must take care of
assigned vehicle in order to prevent damage to vehicle because of sudden changes in weather. The operator should be
cautious when starting or driving a vehicle that has not been operated for a long period. Lubricants may thicken and cause
parts failure. Tires may freeze to the ground, or may freeze flat on the bottom, if underinflated. The operator should be
alert to such possibilities to prevent great damage to the vehicle.
b.
Before Operation.
(1)
Perform all before operation services listed in table 2-3, Preventive Maintenance Checks and Services
(PMCS).
(2)
Start engine coolant heater, if equipped, to warm vehicle coolant, engine, and batteries before
attempting to start engine. Refer to paragraph 2-45 for engine coolant heater operating instructions.
c.
Starting Engine.
NOTE
Shut down engine coolant heater before starting vehicle engine.
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