TM-9-2350-261-10

CARRIER, M113A2, M577A2, M1064, M1068, M1059 AND M901A1

OPERATOR'S MANUAL

TM-9-2350-261-10 - Page 351 of 761

TM 9-2350-261-10

OPERATE ENGINE COOLANT HEATER BELOW –25 F(–31 C) — Continued

0060 00

5.

Move RUN-OFF-START switch to START. Hold switch in START until indicator light comes on.

6.

Move RUN-OFF-START switch to RUN as soon as indicator light comes on. Do not stop in OFF position.

7.

If coolant heater does not start, repeat Steps 4 - 5 above. If coolant heater does not start after three tries, troubleshoot

heater (WP 0074 00).

NOTE

Coolant heater always starts at low heat. It switches to high heat if HI-LO switch is set at HI.

8.

Move HI-LO switch to HI or LO.

NOTE

When HI-LO switch is at HI, heater will automaticallygotolowheatif coolant temperature

reaches 190 F(88 C). It will go back to high heat if coolant temperature drops to 120 F(49 C).

If coolant reaches a temperature of 245

to 260 F (118

to 126 C), heater will stop and must

be restarted.

006000-3

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