SERVICE CONDITION (IR HEADLIGHTS) (cont)

SERVICE CONDITION (IR HEADLIGHTS) (cont) - TM-9-2350-256-20_359

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. A Loosen four screws (1) and remove headlight cover (2). Remove lamp (3) and disconnect connector. Place red lead of multimeter in socket A of wire 18. Turn MASTER switch on, UNLOCK and place main lighting switch in B.O. DRIVE position and B.O. selector switch to IR, and check for voltage. Turn MASTER and main lighting switches OFF. If voltage is present, replace lamp. If voltage is not present, go to step B. B Install lamp (3), headlight cover (2), and tighten four screws (1). Loosen adjustment nut (4) and remove headlight assembly (5). Place red lead of multimeter in socket D of wire 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 C. If voltage is not present, go to step E. 2-290

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