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 154 of 855

TM 9-2350-277-20-1

ENGINE OVERCOOLS

0015 00

INITIAL SETUP:

Maintenance Level

Unit

Personnel Required

Mechanic

Helper (H)

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 panels open (TM 9-2350-277-10)

Power plant rear access panels removed (WP 0439 00)

Driver’s power plant access panel removed

(WP 0441 00)

Coolant TEMP indicator operation checked

(WP 0053 00)

T

WARNING

Moving parts of a power unit can seriously injure you. Clear

personnel away from power unit before startup. Stay clear of

moving parts when power unit is running.

1.

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

2.

Observe speed of ventilating fan (1).

3.

Engage thermostatic fan speed switch (Old Configuration).

See TM 9-2350-277-10.

4.

Engage variable speed fan drive override switch (New

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

5.

Did ventilating fan speed up when switch was engaged?

TN

1.

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

2.

Replace thermostatic fan speed

switch (WP 0231 00) (Old

Configuration).

3.

Replace variable speed fan drive

override switch (WP 0231 01)

(New Configuration).

4.

Verify no faults found.

001500-1

Change 5