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power question

Discussion in 'Western Plows Discussion' started by Cntrmass, Mar 5, 2011.

  1. Cntrmass

    Cntrmass Junior Member
    Messages: 2

    I have a newer motor western plow I guess.
    It has a little joystick control.

    I run two batteries and every time I lift or angle the blade if I have the radio on it shuts it off. The voltage gauge makes it look like its grounding almost.

    It works but I'm sure it shouldn't do that?

  2. mishnick

    mishnick 2000 Club Member
    Messages: 2,353

    You obviously have a bad connection somewhere and when the plow loads down the system the voltage drops below the minimum needed for your radio. Normally the alternator should kick in and make up for this "brown out." It may be just a loose connection on the alternator output cable. You could try putting a voltmeter on the batteries and doing some voltage drop tests. If you put the pos lead on the alt output and the neg on the battery positive post you should see less than a volt difference. The less the better. Hit your plow up and see what the voltage goes up to. If it is more than a volt try a temporary jumper across the same two points, if the problem goes away they look for a loose connection on this wire. It may be that you have a fusable link that is causing resistance. Of course it may also be that the battery or batteries are not connection to the vehicle ground or the positive side. If the batteries are not connecting then the plow will overwelm the alternator. In any case it will be a loose connection somewhere.
  3. twinman326

    twinman326 PlowSite.com Addict
    Messages: 1,683

    You also might want think about two options

    A) got to a higher amp alt
    B) put a second charging using a 10g wire off the "BAT"(back of the alt) to the second battery connected to the positive side of the battery. Also run a separate ground cable from the second battery to the engine block..

    we don't know what type of vehicle or plow you have
  4. Cntrmass

    Cntrmass Junior Member
    Messages: 2

    The plow is on a 1990 Chevy 1500

    The plow is an older western with a newer style pump motor.
    Is there a model somewhere on the mount or pump?