TM 9-2320-302-10
0006 00-7
OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED
0006 00
OPERATE IN EXTREME COLD - CONTINUED
f.
Place AUX HTR switch (2) in ON position. Green light in switch will illuminate.
AUX HTR light (1) will light when combustion starts after approximately 50 sec-
onds.
g.
Preheat engine for approximately 45 minutes and start engine.
NOTE
If HI-LO switch is set to HI position, heater will automatically switch to low
heat when temperature of coolant at heater inlet reaches 176°F (80°C). LO
position is suitable when heater operates over an extended period.
h.
Place HI-LO switch (4) to desired setting.
i.
To turn auxiliary heater off, place AUX HTR switch (2) to OFF position. Heater
burner will stop and AUX HTR light will go out within a few minutes. Blower will
continue to run for approximately 90 seconds.
1
2
3
4