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 222 of 855

TM 9-2350-277-20-1

SERVICE HEADLIGHTS DON’T WORK

0031 00

INITIAL SETUP:

Maintenance Level

Unit

Tools and Special Tools

General Mechanic’s Tool Kit (WP 0926 00, Item 65)

Multimeter (WP 0926 00, Item 30)

Personnel Required

Unit Mechanic 63T10

References

See your -10

Equipment Condition

Engine stopped (see your -10)

Carrier blocked (see your -10)

T

1.

Operate lights in all lighting control positions (see your -10).

2.

Do any exterior lights operate in any lighting control switch

positions?

YES

NO

TN

1.

Go to No Exterior Lights Operate

(WP 0029 00).

Y

1.

Turn master light switch to SER DRIVE.

2.

Do both high beams and/or both low beams fail to come on?

YES

NO

GO TO

AY

(PAGE 0031 00-3)

2Y

1.

Turn MASTER SWITCH to OFF.

2.

Remove two screws (1), washers (2), and dimmer switch (3).

3.

Remove harness 12349881 plug (4) from dimmer switch jack (5).

4.

Turn MASTER SWITCH to ON.

5.

Measure voltage between harness 12349881 plug (4) pin G (6)

and ground.

6.

Does multimeter read less than 17 volts?

YES

NO

GO TO

BY

(PAGE 0031 00-4)

0031 00-1