SERVICE CONDITION (IR HEADLIGHTS) (cont)

SERVICE CONDITION (IR HEADLIGHTS) (cont) - TM-9-2350-256-20_361

SERVICE CONDITION (IR HEADLIGHTS) (cont) - TM-9-2350-256-20_363

TM-9-2350-256-20 Carrier Cargo Tracked 6-Ton M548A1 (2350-01-096-9356) M548A3 2350-01-369-6081 Manual
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CHAPTER 2: VEHICLE MAINTENANCE INSTRUCTIONS TM 9-2350-256-20 2-19 ELECTRICAL TROUBLESHOOTING-Continued B.O. SERVICE CONDITION (IR HEADLIGHTS-Continued WARNING Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts a metal surface a direct short may result in instant heating of tools, damage to equipment, and injury or death to personnel. J Reconnect headlight and dimmer switch wiring harness to dimmer switch. Remove three screws (6), three lockwashers (7), ground lead (8), and flat washer (9) and release main switch panel (10) from mounting brackets. Disconnect switch panel to gage panel and miscellaneous switches wiring harness from main switch panel. Place red lead of multimeter on pin N of wire 10 and black lead to ground. Turn MASTER switch on and check for voltage. Turn MASTER switch OFF. If voltage is present, go to step K. If voltage is not present, go to step S. K Place a jumper wire from pin N to socket N of wire 10. Place red lead of multimeter in socket A of wire 514/515 and black lead to ground. Turn MASTER switch on, UNLOCK and move main lighting switch to B.O. DRIVE position, B.O. SELECTOR switch to IR, and check for voltage. Turn MASTER main lighting, and B.O. SELECTOR switches off. If voltage is present, go to step L. If voltage is not present, go to step M 2— 294

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