TM-9-2510-247-13-P

FIFTH WHEEL TOWING DEVICE MODEL 250M

TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT MAINTENANCE MANUAL, REPAIR PARTS AND SPECIAL TOOLS LIST

JULY 2004

TM-9-2510-247-13-P - Page 141 of 522

TM 9-2510-247-13&P

0027 00

UNIT TROUBLESHOOTING - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ELECTRICAL SYSTEM - Continued

Step 3.

Are there any broken or frayed wires?

If no, go to step 5.

If yes, repair or replace wires as necessary (WP 0051).

Step 4.

Is the bulb working properly?

If no, replace bulb (WP 0048).

If yes, replace worklight assembly (WP 0048).

7. LIGHT BAR ASSEMBLY INOPERABLE

Step 1.

Is light bar cable properly installed in receptacle on prime mover?

If no, install light bar cable in receptacle on prime mover (WP 0015).

If yes, go to step 2.

Step 2.

Is light bar cable damaged?

If no, go to step 3.

If yes, repair or replace light bar cable as necessary (WP 0047).

Step 3.

Is voltage going into light bar assembly?

If no, replace light bar cable.

If yes, replace light bar assembly and return used light bar assembly to

manufacturer for evaluation.

8. STROBE LIGHTS INOPERABLE

Step 1.

Is STROBE LIGHT switch ON?

If no, put STROBE LIGHT switch in ON position (WP 0015).

If yes, go to step 2.

Step 2.

Is just one side inoperable?

If no, go to step 4.

If yes, check electrical ground (WP 0088).

Step 3.

Is bulb working properly?

If no, replace bulb (WP 0049).

If yes, replace strobe light assembly and send faulty assembly to manufacturer

for evaluation.

0027 00-5