C9, TM 9-2350-230-12
Section 2-7. OPERATION OF SPECIAL PURPOSE KITS
The winterization kit coolant heater is to be used
2-8. Operation Instructions
when engine is shutdown in ambient temperatures at -
The following tables and illustrations provide special
250F. to -650F., to raise engine oil, engine coolant and
purpose kits operating instructions.
battery electrolyte temperatures.
2-10. -Deleted.
2-9. Operation of Winterization Kit Coolant Heater
2-11. Searchlight Kit (tables 2-14.15.16)
TABLE 2-13. OPERATION OF ENGINE COOLANT HEATER (-250F. TO -650F.)
STEP
PROCEDURE
FIG/ITEM
BEFORE OPERATION
1
Fold back and secure flap on forward left corner of grille cover to
2-32
uncover heater exhaust pipe.
WARNING: When operating winterization kit coolant heater,
turret must be positioned so that neither grenade projector is over
the heater exhaust outlet.
STARTING AND OPERATING HEATER
NOTE. The duration of time that the winterization kit can be operated
is dependent upon the amount of battery capacity available. Care should be
taken not to operate other vehicle electrical equipment while the kit is in
operation. Three to 5 hours of kit operation is required prior to attempt-
ing an engine start on a cold soaked vehicle.
2
Vehicle master switch should be in the "OFF" position
NOTE. Heater may be operated with vehicle master switch in "ON"
or "OFF" position. It is recommended that the "OFF" position be used
to minimize battery drain.
3
Be sure fuel supply valve on center fuel tank is open.
4
Depress coolant heater control box indicator light to test. Indicator
2-32/2
light will illuminate.
NOTE. If indicator light does not illuminate, replace lamp and/or
determine cause for lack of electrical continuity.
5
Place heat selector switch in "LO" position
2-32/1
6
Hold heat control switch in "START" position until indicator light
illuminates (1 to 3 minutes).
CAUTION: If indicator light does not illuminate within 3 minutes,
turn heat control switch to "OFF" position and wait 5 minutes. Repeat
step 5 to make a second attempt to start heater. If the light does not
illuminate after a third attempt, turn heat control switch to "OFF"
position and refer to Organizational Maintenance Personnel.
7
Snap heat control switch to "RUN" position
2-32/1
8
Place heat selector switch in "HI" position 10 minutes after the indicator
2-32/1, 2
light on the control box has illuminated.
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