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Fisher Mark 3 pump having problem with it lifting

Discussion in 'Truck & Equipment Repair' started by coty.derush, Jan 23, 2011.

  1. coty.derush

    coty.derush Junior Member
    Messages: 1

    I have a Fisher MM1 plow with a Mark 3 pump on it the MM1 pump was stolen off it and the guy i bought my truck and plow from gave me the mark 3 pump to put on it i put it on the plow frame and hooked it up to power and replaced to hydrolic lines but i cant get the plow to rise. the plow will angle slowly but when i try to lift it it starts to untill the chain tightens and then it will stop. i put a new lift vaulve in and new packing seal on the lift ram is there anyone who may know what to do???
  2. 7_3powerstroke

    7_3powerstroke Junior Member
    Messages: 11