TM 9-2350-277-10
DESCRIPTION AND USE OF OPERATOR'S CONTROLS AND INDICATORS -- Continued
0004 00
Table 17. ENGINE COOLANT HEATER CONTROL BOX
KEY
CONTROL OR INDICATOR
FUNCTION
HI-LO SWITCH
Controls engine coolant heater output.
COOLANT HEATER LIGHT
Indicates that coolant heater is on.
PRESS-TO-TEST SWITCH
When switch is pressed, light will come on if light bulb is good and
if power is coming into the control box.
RUN-OFF-START SWITCH
Controls operation of coolant heater.
0004 00-24
Change 4