TM 5-3805-290-10
OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED
0006 00
ARCTIC COLD WEATHER STARTING AID SYSTEM - CONTINUED
0006 00
WAR N I N G
Use of an engine coolant heater requires that coolant in system is a proper mixture of water and anti-
freeze, to prevent coolant from freezing or slushing. If coolant freezes or slushes, coolant pumps or
heater cannot move coolant, causing blockage in circulating system. Pressure buildup in engine cool-
ant heater can cause coolant hose at heater connection to burst or blow off. Injury to personnel or
damage to engine could result.
c.
Engine starting procedures for the arctic operation machine are the same as for the standard machine, except that
engine coolant heater must first be operated to preheat engine coolant.
2.
Engine Coolant Heater Operation.
WARN I N G
DO NOT operate engine coolant heater in enclosed areas due to the dangers of carbon monoxide poi-
soning from exhaust fumes. Always start and operate heater in a well-ventilated area and, if in an
enclosed area, vent exhaust to the outside. Failure to follow this warning may cause injury or death to
personnel.
a.
Press engine coolant heater switch to turn heater
ON. Lamp inside switch will turn on when sys-
tem is operating.
427-B0527F
b.
Allow engine coolant heater to operate for 20 minutes.
c.
Press switch again to turn heater OFF.
d.
Wait until lamp inside switch turns off (at least 3 minutes). This indicates that heater shut-down procedure has fin-
ished.
CAU T I ON
DO NOT operate starter for more than 60 seconds when in extreme cold temperature.
e.
Start engine (WP 0005 00).
0006 00-9
