TM 9-2320-272-10
2-44.
FUEL BURNING PERSONNEL HEATER KIT (Contd)
(5)
Set HI-LO switch (6) on personnel heater control box (5) to HI.
NOTE
Heater will not operate if switch is released from START position before
indicator lamp illuminates.
(6)
Hold RUN-OFF-START switch (8) on personnel heater control box (5) in START position until indicator lamp
(7) illuminates.
(7)
Move switch (8) from START to RUN, without hesitating at OFF, as soon as indicator lamp (7) illuminates.
NOTE
•
If heater fails to start, turn RUN-OFF-START switch to OFF position
and repeat steps 6 and 7. Notify your supervisor if heater fails to start
after two attempts.
•
Heater blower motor switch on vehicle instrument panel is not used
for blower operation. HI-LO switch and RUN-OFF-START switch on
personnel heater control box are used in place of blower motor
switch.
(8)
Adjust hot air flow with heat vent control (3).
CAUTION
Heat cab before defrosting windshield. Glass damage may result from
sudden temperature changes.
(9)
Adjust defroster control (2) as required to defrost windshield. All heated air is directed at windshield when
defroster control (2) is pulled all the way out.
(10) To shut down personnel heater:
(a)
Turn RUN-OFF-START switch (8) to OFF.
(b)
Remain in vehicle cab to make sure indicator lamp (7) goes out and blower motor stops.
(c)
Close defroster control (2) and heat vent control (3).
(d)
Shut off engine. Refer to paragraph 2-16 for engine shutoff instructions.
(e)
Close electric fuel pump shutoff valve by turning valve lever (9) one-quarter turn clockwise. Close two
valves (10) for M939A2 series vehicles.
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