TM-9-2350-277-10

CARRIER, M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; OPERATOR’S MANUAL

TM-9-2350-277-10 - Page 163 of 889

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 5