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Unimount Running Slow!

Discussion in 'Western Plows Discussion' started by FordF350Diesel, Dec 1, 2009.

  1. FordF350Diesel

    FordF350Diesel Junior Member
    from Ill
    Messages: 9

    I have a unimount and just put new lift ram seals and motor and fluid change and this thing is stumping the hell outa me. It was running ok up/down left and right backed out side and kept running it and it was running slow u can kinda hear the pump and the lights dim but inside it wasnt bad. and when you lower it sometimes you can put the ram down and pull it up and aft running it again pulled it in the ram was solid. what do i do i want this plow done asap.

  2. Philbilly2

    Philbilly2 PlowSite Veteran
    Messages: 3,793

    I would normaly say motor, but you have replaced that. Well, all that is left in your case is the pump itself.

    Have you made sure that the truck is putting out good voltage?
  3. FordF350Diesel

    FordF350Diesel Junior Member
    from Ill
    Messages: 9

    negetive, i guess ishould check that

    WRIGHTWAY Senior Member
    Messages: 104

    Snowplow raises slowly or partially – motor runs. Lift cylinder packing nut too tight. Adjust lift cylinder packing nut.
    Clogged pump filter (all functions are affected). Clean or replace filter, flush reservoir.
    Worn or damaged pump. Go to Pump Pressure Test.
    Poor connections on battery cables. Inspect battery cables, clean and re-attach all
    Quill adjusted in too far. Adjust quill out.
    Malfunctioning controller. Go to Control Test.
    Last edited: Dec 7, 2009
  5. twinman326

    twinman326 PlowSite.com Addict
    Messages: 1,683

    Have to agree with wrightway,
    You made a statement that you replace the seals. Seems like the packing nut might be too tight. Re-loosen the packing nut, tighten 1/4 maximum after you feel the packing nut contacting the packing. Also keep in mind, it is necessary to see a light film of fluid present on the rod. This keep the packing set lubricate.