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 379 of 855

TM 9-2350-277-20-1

TRANSMISSION DOES NOT HOLD 3RD POSITION — Continued

0069 00

Y

1.

Remove harness 12349810 plug (1) from harness 12349813

jack (2) at carrier bulkhead.

2.

Measure voltage between each socket on harness 12349813

jack (2) and ground. Multimeter should read 0 volts for

sockets B (3), D (4), and H (5), and at least 18 volts for

the remaining socket checks.

3.

Does multimeter read more than 0 volts at sockets B (3), D (4),

and H (5), or less than 18 volts at all remaining sockets?

YN

1.

Faulty harness 12349810

(transmission control wiring

harness). Beyond unit maintenance

repair.

2.

Notify supervisor.

2Y

1.

Turn MASTER SWITCH to OFF. See TM 9-2350-277-10.

2.

Install harness 12349810 plug on transmission jack.

3.

Remove transmission controller (WP 0386 00 or WP 0387 00).

4.

Measure resistance between transmission controller jack (1) pin

M (2), and pins A thru G. Multimeter should read infinity for pins

BandD

,andread0ohmsforpinsA,C

,E

,F

,andG

.

5.

Does multimeter read less than infinity for pins B and D, or more

than0ohmsforpinsA,C

,E

,andG?

2YN

1.

Install transmission controller

(WP038600orWP038700)

.

2.

Faulty harness 12349813

(transmission wiring harness).

Beyond unit maintenance repair.

3.

Notify supervisor.

006900-2

Change 5