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Thread: Will MIG welding blowout trailer light bulbs

  1. #1
    77Woodbridge
    Hey guys I was told that if I don't remove all of the bulbs on my trailer they will blow when I weld up my new bow stop. Is this true?

  2. #2
    TJS
    I have done welding on computer controlled cars and non ones as well. I have never removed the bulbs. I did however disconnect the battery on vehicles though when welding.
    T.J.
    www.tjsperformance.com

  3. #3
    DelawareDave
    You won't hurt the bulbs.

  4. #4
    77Woodbridge
    Thanks

  5. #5
    Big Kahunaa
    last time i was welding on my trailer i didn't have a good ground and every time i started to weld one light would light up

  6. #6
    77Woodbridge
    Did any lights burn out though?

  7. #7
    77Woodbridge
    I know the obvious would be to be safe and remove the bulbs, but my trailer is ~32 feet long. I'd have to count, but I'm guessing 20 lights - all enclosures sealed with silicone.

  8. #8
    victorfb
    disconnect the trailer from the tow vehicle completely. it can effect the ECM to were you may have to buy a new one. as for the lights on the trailer itself, ive never heard of that happening unless you have a completed circuit. (battery source). reversing polarity to a circuit that doesnt have its power source shouldnt effect the bulbs. but if you leave the trailer connected to the tow vehicle, the hitch and ball can act as a ground and unless you disconnect the battery it will effect the lights. (via the tow vehicles power supply and circuit).

  9. #9
    77Woodbridge
    Ok, thanks guys. I'm going to disconnect the on board batteries and blaze it up.

  10. #10
    Bradf
    Yea, take off the ball/hitch and if you're really worried about the bulbs just make sure there are no bulbs between the gun and the ground on the welder...

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