FUEL BURNING PERSONNEL HEATER KIT
General. Fuel burning personnel heater provides heat and defrost to vehicle cab when the engine is operating.
Fuel Burning Personnel Heater Operation.
Shut off engine coolant heater if operating. Refer to paragraph 2-45 for engine coolant heater shutdown
Do not operate the engine coolant heater control box and personnel heater control box at the
same time. Electric fuel pump will not maintain fuel pressure for both heaters at same time.
(2) Open electric fuel pump shutoff
valve by turning valve lever (9) one-quarter
turn counterclockwise. Open two valves (10)
for M939A2 series vehicles.
(3) Start engine. Refer to paragraph
2-13 for cold weather starting instructions if
(4) Press PRESS-TO-TEST button