TM-9-2330-227-14-P

SEMITRAILER, VAN: SHOP, 6-TON, SINGLE AXLE, M146

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

JUNE 1985

TM-9-2330-227-14-P - Page 100 of 576

TM 9-2330-227-14&P

ORGANIZATIONAL TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

5. ALL LIGHTS DO NOT WORK, LATE M146 - CONTINUED

Step 2.

Step 3.

Step 4.

Step 5.

Step 6.

Step 7.

Step 8.

Step 9.

Check connector receptacle for damage.

If receptacle is damaged, replace (page 4-76).

Check junction boxes to make sure all circuit breakers are on.

If circuit breakers are off, turn on (page 2-8).

Check switches to make sure they are on.

If switches are off, turn on (page 2-8).

Using multimeter set to read voltage, put red probe on one contact

for outside receptacle and black probe on the other.

If multimeter measurement is not approximately 110-vac, replace

receptacle (page 4-76).

Unplug power source, Using multimeter set to read continuity, put

red probe on one end of wire leading from left side of connector

receptacle to left main circuit breaker and black probe on other end.

If multimeter reads no continuity, notify Direct

Support Maintenance.

Repeat step 6 for wire leading from right side of connector

receptacle to right main circuit breaker.

Using multimeter set to read continuity, put red probe on one side

of left main circuit breaker and black probe on the other.

If multimeter reads no continuity, replace circuit breaker

(page 4-40).

Repeat step 8 for right main circuit breaker.

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