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 155 of 855

TM 9-2350-277-20-1

ENGINE OVERCOOLS — Continued

0015 00

Y

1.

Stop engine. See TM 9-2350-277-10.

2.

Disengage thermostatic fan speed switch (Old Configuration).

See TM 9-2350-277-10.

3.

Disengage variable speed fan drive override switch (New

Configuration). See TM 9-2350-277-10.

4.

Manually rotate fan drive belt (1).

5.

Do fan drive belt and all related pulleys rotate freely?

YN

1.

Replace variable speed fan drive unit

(Old Configuration) (WP 0249 00) or

(New Configuration) (WP 0249 01).

2.

Verify no faults found.

2Y

1.

Replace engine thermostat (WP 0237 00).

2.

Verify no faults found.

001500-2

Change 5