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Need Help...added back drag blade and plow wont raise all the way now

Discussion in 'Western Plows Discussion' started by AmericanHandymn, Dec 19, 2008.

  1. AmericanHandymn

    AmericanHandymn Junior Member
    Messages: 12

    I just put a back drag blade on my 7.5 western unimount, and now the plow will only go up about 3-4 inches off the ground. If I remove the chain the piston will go ALL the way up......if I have someone hold the swith up and I lift a little it will go up until it hits the stops. Seems as though the pump or piston (maybe moror) cant handle the extra weight..maybe 75-100 lbs for the back drag blade?

    I have cleaned the filter, replaced the fluid, and adjusted the quill so it drops at a human speed, but I could not budge the packing nut to try and adjust it. I also replaced the battery, cleaned the grounds, and put dialectric grease at all connections (I think).

    The pump was replaced 2 years ago, and the motor and pistons are at least 4 years old (dont know if the previous owner ever changed them out so maybe even older) and I plow about 35 drives a storm.


    Its on a 97 Dodge Ram 1500 if it matters.....any help would be MUCH appreciated.
     
  2. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,031

    did you mess with the quill before or after the issue occured?
     
  3. AmericanHandymn

    AmericanHandymn Junior Member
    Messages: 12

    After...I got tired of it slamming down on the garage floor so hard.
     
  4. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Turning the quill in to far will restrict raise. Pump gets tired of trying to work so hard and goes over relief. Try adjusting it back out and see what you get.
     
  5. Nestech

    Nestech Senior Member
    Messages: 105

    You will need to check pump pressure, It is a simple procedure with the proper gauge. If you don't have the gauge try removing the motor and turnning up the pump pressure by 1/4 turn. If you look on top of the pump when the motor is removed there are 4 mounting bolts that have 1/2 heads. In between you will see a 7/16 sized head that is what you turn clockwise 1/4 turn.
     
  6. Runner

    Runner Senior Member
    Messages: 957

    Cool deal..that is exactly what I was thinking when I read this first post. The same thing happened with mine when I installed my Prowings. the adjustment cured it.