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 609 of 855

TM 9-2350-277-20-1

TACHOMETER MALFUNCTIONS — Continued

0116 00

2Y

1.

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

2.

Remove pulse tachometer (WP 0867 00).

3.

Manually rotate pulse transducer input (1)

4.

Observe pulse transducer output (2).

5.

Does output rotate without binding?

2YN

1.

Install tachometer cable on

tachometer.

2.

Replace pulse tachometer

(WP 0867 00).

3.

Verify no faults found.

3Y

1.

Remove tachometer adapter (WP 0863 00).

2.

Manually rotate tachometer adapter input (1)

3.

Observe tachometer adapter output (2).

4.

Does output rotate without binding?

3YN

1.

Replace tachometer adapter

(WP 0863 00).

2.

Install tachometer cable onto

tachometer.

3.

Verify no faults found.

4Y

1.

Install tachometer adapter and pulse tachometer (WP 0863 00

and WP 0867 00).

2.

Replace tachometer cable assembly (WP 0864 00).

3.

Verify no faults found.

AY

1.

Does tachometer fail to give steady reading?

AYN

1.

Replace tachometer (WP 0862 00).

2.

Verify no faults found.

011600-2

Change 5