TM 9-4520-251-14
4-44. FUEL CONTROL VALVE, TEMP. SELECTOR, FUEL CONTROL BLOCK AND CHECK VALVE (CONT)
Location/Item
Action
Remarks
2.
3.
4.
5.
6.
7.
Air duct hose
Exhaust stack
Thermometer
installation
Temperature
indicator knob
Attach 12-inch air
duct hose (1) to
duct adapter (2) of
heat exchanger (3).
Install exhaust
stack (4).
Make small hole
about 2 feet (0.61
meter) from heat
generator and
insert thermometer
(5).
Loosen setscrew
(6) on temperature
indicator knob (7).
Turn handle (8)
clockwise as far as
it will go and then
counterclockwise 3
turns.
Do not operate heater In enclosed space. Adequate ventilation is required
to prevent buildup of exhaust fumes which can be toxic in concentrated
amounts.
Wear approved ear protection equipment within 25 feet (7.6 meters) of
operating heater. Failure to do so may result in impairment or loss of
hearing.
Heater
Start engine and heater. Run until reading on
discharge temperature gauge (9) is stable. Run
heater an additional 5 minutes.
Thermometer
Observe thermometer (5). A temperature reading of
reading
280°F (138°C) is desirable.
4-106
Change 1
