C3, TM 9-2350-230-12
TABLE 2-13. OPERATION OF COOLANT HEATER (-25F. TO -650F.) - CONTINUED
STEP
PROCEDURE
FIG/ITEM
STARTING AND OPERATING HEATER - CONTINUED
NOTE: The heat selector switch should remain in the "HI" heat
position during prolonged use of the winterization kit. The coolant
thermostat will automatically switch the heater from high to low heat
thereby maintaining proper system temperatures.
BEFORE STARTING ENGINE
9
Unfasten 2 or 4 straps on engine intake grille cover and roll cover into
2-32/5, 7
smallest possible tube form and secure straps onto unused spacers at
forward end of exhaust grille.
10
Unfasten 3 or 5 straps on exhaust grilles cover and roll cover into
2-32/6, 8
smallest possible tube form, securing straps onto spacers at rearward
end of intake grille.
11
During prolonged engine operation or during main weapon firing, remove
2-32/4
grille cover.
12
Place heat control switch to center "OFF" position. Indicator light will
2-32/2, 3
remain illuminated and blower will continue to run for 2 or 3 minutes
until the combustion chamber has been purged.
13
Start vehicle engine.
NOTE. Do not operate winterization heater when engine is running.
AFTER OPERATION
14
Shut-down vehicle engine.
15
Secure grille cover in the closed position
2-32/4
2-54
