TM 9-2350-277-10
OPERATE ENGINE COOLANT HEATER (BELOW 25 F (31 C)) -- Continued
0062 00
TURN COOLANT HEATER OFF
NOTE
When coolant heater is turned off, blower will run until heater is purged of fuel and burner is
cool. Indicator light will stay on until blower stops. Driver should stay in carrier until blower
stops.
1.
Move RUN-OFF-START switch to OFF.
2.
Allow coolant heater to purge itself.
3.
Close coolant pump shutoff valve and coolant heater shutoff valve.
4.
Close power plant access door. See task: OPEN/CLOSE POWER PLANT ACCESS DOOR (WP 0011 00).
5.
Stow trim vane. See task: LOWER/STOW TRIM VANE (WP 0039 00).
CAUTION
Carrier batteries can discharge. If carrier is not to be driven after 12 hours of running coolant
heater, start and run engine until all batteries are fully charged.
NOTE
Always turn coolant heater off and close coolant shutoff valves before starting engine.
6.
If needed, start and run engine to charge batteries. See task: START ENGINE (WP 0021 00).
END OF TASK
