OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED
OPERATE IN EXTREME COLD - CONTINUED
Start driving very slowly for about 100 yards (91.4 m). Be alert for signs
that tires may have flat spots or that one or more brake shoes may be frozen
and require preheating. Notify Unit Maintenance as required.
If vehicle will be parked for a short period, park in a sheltered area out of
wind. If shelter is not available, park vehicle so it does not face into the
If vehicle will be parked for a long shutdown period, try to park on high
ground and use planks or brush to make a raised and relatively dry surface.
Keep tires out of snow, water, ice, and mud, if possible.
Clean snow, ice, and mud from vehicle as soon as possible after shutdown.
If vehicle will be parked for a long period of time, have Unit Maintenance
remove and store batteries. Fill fuel tank to guard against condensation and
drain any accumulated water from air reservoirs and fuel filters.
Ensure tires are properly inflated.
Have Unit Maintenance check and service cooling system to ensure truck is
adequately protected against extreme cold. Ensure transmission is in NEU-
TRAL (N) position and vehicle tires are blocked.
Operate Arctic Heater to Preheat Engine (if equipped).
Arctic heater is used to provide engine preheating for engine startup in
extreme cold. It is also used to provide personnel heat. When heater is
required to preheat engine coolant and engine block before startup, it
should be turned on 1/2-1 hour before engine is started.
Auxiliary heater (AUX HTR) indicator light illuminates only when
burner is lit. Indicator light turns on and off automatically.
During auxiliary heater operation, watch battery indicator. If necessary,
start engine to charge batteries.
Place master battery switch to ON.
Turn all electrical equipment in cab OFF (i.e., heated mirrors, defroster blower, per-
sonnel heater blower, etc.).
Push auxiliary heater coolant flow control knob IN (located on the radio support
Place heater mode control lever (3) to HEAT.
Turn ignition switch to the accessory position (counterclockwise).