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 436 of 855

TM 9-2350-277-20-1

PERSONNEL HEATER MALFUNCTIONS — Continued

0086 00

FY

1.

Remove heater control box (WP 0702 00).

2.

Check continuity between lead ends of heater output jack (1),

pinA(2)

,andON/OFF/STARTswitchterminal14(3)

.

3.

Does multimeter read 0 ohms?

FYN

1.

Replace faulty lead (WP 0702 00).

2.

Verify no faults found.

F2Y

1.

Replace heater ON/OFF/START switch (WP 0702 00).

2.

Verify no faults found.

GY

1.

Is heater exhaust cold?

GYN

1.

Replace heater (WP 0703 00

or WP 0704 00).

2.

Verify no faults found.

G2Y

1.

Loosen fuel inlet line (1) to heater with heater switch on START.

2.

Does fuel fail to flow out of loosened fitting?

G2YN

1.

Replace heater (WP 0703 00

or WP 0704 00).

2.

Verify no faults found.

008600-9

Change 5