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Ground Wire Fried?

Discussion in 'Truck & Equipment Repair' started by kelpike, Dec 19, 2008.

  1. kelpike

    kelpike Junior Member
    Messages: 23

    I have a Curtis plow. I started to plow my driveway today and the plow just stopped working. I could smell something burning. Under the hood, I noticed much of the insulation had burned off the ground wire thats attached to the body of the truck. I cant tell where the wire goes. Does anyone know what causes this and where the wire goes?
     
  2. no lead

    no lead PlowSite.com Addict
    Messages: 1,308

    were does your plow ground? to the batt? if not, that could do it.
     
  3. kelpike

    kelpike Junior Member
    Messages: 23

    Everything is wired according to the Curtis website diagram, but this wire doesn't even show on the diagram for some reason. If I remember right, the person I bought it from said this wire grounds to the body. The plow worked fine all winter last year. Should I replace the wire and ground it to the battery?
     
  4. Spitz

    Spitz Senior Member
    Messages: 192

    Bad ground/ ground connection somewhere. Too much current flowing through that wire for some reason.. Like said if the plow is hooked to the body and the body ground is insufficient then yea, it'll burn! It would be a good idea to run power and ground wires directly from the battery, that will eliminate any of these problems.
     
  5. kelpike

    kelpike Junior Member
    Messages: 23

    So do you think replacing the wire will be enough, or do you think I damaged something else?
     
  6. no lead

    no lead PlowSite.com Addict
    Messages: 1,308

    just change the wire. go big.
     
  7. artic429

    artic429 Senior Member
    Messages: 166

    Put that ground wire directly to the battery. The body is mount isnt a good idea. When you are out in bad weather, you dont need any foul ups! If your ground is going right to the battery , you will never have a problem again I bet.
     
  8. Lydia Moore

    Lydia Moore Junior Member
    from nj
    Messages: 4

    check wire fist.. is stop thats why is might be problem in wire
     
  9. basher

    basher PlowSite Fanatic
    from 19707
    Messages: 8,992

    I don't know where the wire goes but it did not burn because of a insufficient ground. A bad ground would not have allowed any current to flow. Your problem is caused by excessive currant flow, i.e. a "dead" short. you need to find the source of the excessive current. Perhaps another larger ground wire has failed somewhere and you have an inadequate wire (the burnt one) trying to carry the load.
     
  10. kelpike

    kelpike Junior Member
    Messages: 23

    I found that the larger grounding cable coming from the plow was also grounded to the body and probably wasn't the best connection. I ran a new cable to the battery. I also fixed the "fried" wire and ran that to the battery. Everything seems to be working fine now. Thanks to everyone who replied to this to help me out.
     
  11. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Whoever installed that plow grounding it to the sheet metal should be fired. Be grateful it didn't cause other or bigger issues.

    Some people should be required to pass an aptitude test before they're allow to purchase tools. ;)
     
  12. dadam

    dadam Junior Member
    Messages: 13

    No sh** that could have fried lots of other things with that much juice.
     
  13. no lead

    no lead PlowSite.com Addict
    Messages: 1,308

    i make my technicians to be take an aptitude test.
     
  14. naturalgreen

    naturalgreen Senior Member
    Messages: 404

    lots of guys who put on plows think they are installing a car alarm.
    not realizing power going through it.
    I have seen a few too many plows grounded that way.
     
  15. Spitz

    Spitz Senior Member
    Messages: 192




    No no, you cant dead short a ground wire, think about it, a shorted ground wire is just a ground wire no matter where it grounds to, whether it be correct or not. When I said bad ground, im say a bad ground connection for the body or wherever this wire leads to, apparently not to the battery..
     
  16. basher

    basher PlowSite Fanatic
    from 19707
    Messages: 8,992


    If you read the solution you will see I was right.

    As for your response please God don't ever touch anything 12 volt electrical except your own stuff, then it won't matter that you have no understanding of 12 volt electrical current flow because you'll be paying the repair bills. If you don't have a ground you can not flow power, therefore a bad ground will not fry because there is no power to fry it.
     
  17. snowandgo

    snowandgo Senior Member
    Messages: 143

    Actually, you were wrong before you were right, as your first statement directly contradicts the last statement. You may know your stuff, but you haven't learned English very well. And the excessive current was not caused by a dead short. :salute:
     
  18. Spitz

    Spitz Senior Member
    Messages: 192



    You just reworded exactly what i had said, in the end it was a BAD GROUND CONNECTION.. Read my post again.... Yes a bad ground on THAT wire would not cause a problem, execpt yes, it can still heat up the bad connection (resistance= heat). The current will seek its easiest path, and it found it, more than likely through a smaller wire from the body to the battery, which is what burned in this case, which was due to A BAD GROUND CONNECTION.. Jeez, thats a hard one, maybe you're the one not seeing how this electrical thing works. Re-read my post, its right.
     
    Last edited: Dec 23, 2008
  19. kelpike

    kelpike Junior Member
    Messages: 23

    Everything was working fine for about a week. When I went to hook up and lift again, the same wire fried. Both wires are now directly to the battery. Any suggestions on where to start looking for the problem would be greatly appreciated.
     
  20. no lead

    no lead PlowSite.com Addict
    Messages: 1,308

    seems like a bad ground strap from the battery to the frame or engine of the truck. the plow is grounding through the wire that burns. replace the burnt wire with one of 4GA. take a set of jumper cables and go from batt neg to the engine. then neg to the frame. does the plow start working now?