BLACKOUT DRIVE LIGHTS FAIL TO OPERATE. (cont)

BOTH FLOOD LIGHTS FAIL TO OPERATE. (cont)

Section XXIII. LIGHT SYSTEM MAINTENANCE.

TM-5-3805-261-20 Grader Heavy Road Motorized (Caterpillar Model 130 G) Manual
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TM 5-3805-261-20 LIGHT SYSTEM TROUBLESHOOTING AND MAINTENANCE PROCEDURES. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION h. BLACKOUT DRIVE LIGHTS FAIL TO OPERATE. (cont) Step 3. Test the continuity of the headlight switch (Figure 7-106) in all blackout drive positions. Connect one multimeter lead to the back of switch and one to ground. Figure 7-106 If the multimeter needle does not move, the circuit does not have continuity. Replace light switch assembly. Refer to paragraph 7-73. Step 4. Check the wiring harness for corrosion, cracks or breaks. If the wiring harness is damaged or defective--repair. Refer to paragraph 7-117. If replacement is necessary- -contact Direct Support. i. DOME LIGHT FAILS TO OPERATE. Refer to Dome Light and Switch Troubleshooting, paragraphs 7-65 and 7-66. 7-187

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