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Amps dropping when using dump

Discussion in 'Trucks and Trailers' started by dmk395, Feb 20, 2012.

  1. dmk395

    dmk395 LawnSite Bronze Member
    from Ma
    Messages: 1,006

    I have a 2003 GMC Sierra one ton dump. Was going thru it to get ready for the season and replaced the battery, as it looks old and some acid was coming out the top. I noticed the amps drop a bit when hoisting the dump body. Should this happen, or is this an alternator issue? Any help is appreciated
  2. ecurbthims

    ecurbthims LawnSite Senior Member
    Messages: 493

    theres lots of current draw on an electric over hydraulic powerpac , typically the motor is relatively the same or even identical to a starter ,so its normal .
  3. hosejockey2002

    hosejockey2002 LawnSite Bronze Member
    Messages: 1,195

    I show a voltage drop when operating my dump insert also. The reason is simple- the pump motor draws more amps than the alternator puts out. Since operating a dump is a short term draw, it's not a problem.
  4. ecurbthims

    ecurbthims LawnSite Senior Member
    Messages: 493

    I would like to add that you can help out your electrical systems by running large enough cable especially on long runs ,and making sure the connections are clean and sound .

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