TM-9-2350-277-20-1

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 6

TM-9-2350-277-20-1 - Page 440 of 855

TM 9-2350-277-20-1

COOLANT HEATER MALFUNCTIONS

0089 00

INITIAL SETUP:

Maintenance Level

Unit

Tools and Special Tools

Electrical Connector Pliers (WP 0926 00, Item 31)

General Mechanic’s Tool Kit (WP 0926 00, Item 65)

Multimeter (WP 0926 00, Item 30)

Personnel Required

Mechanic

References

TM 9-2350-277-10

Equipment Condition

Engine stopped (TM 9-2350-277-10)

Carrier blocked (TM 9-2350-277-10)

Power plant access door open (TM 9-2350-277-10)

Driver’s power plant access panel removed

(WP 0441 00)

Power plant rear access panels removed (WP 0439 00)

Ramp lowered (TM 9-2350-277-10)

Heater on HI (TM 9-2350-277-10)

Rear floor plates removed (WP 0539 00, WP 0542 00,

WP 0543 00, WP 0544 00, or WP 0545 00)

Engine cold

T

1.

Depress HEATER ON indicator. See TM 9-2350-277-10.

2.

Does indicator light come on?

TN

GO TO

AY

(PAGE 0089 00-3)

Y

1.

Release HEATER ON indicator.

2.

Move HEATER SWITCH to START.

3.

Does heater blower come on?

YN

GO TO

BY

(PAGE 0089 00-5)

2Y

1.

Does heater fuel pump come on?

2YN

GO TO

DY

(PAGE 0089 00-7)

3Y

1.

Does coolant circulating pump come on?

3YN

GO TO

FY

(PAGE 0089 00-8)

008900-1

Change 5