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haldex plow pump

Discussion in 'Truck & Equipment Repair' started by wahlturfcare, Feb 9, 2016.

  1. wahlturfcare

    wahlturfcare Senior Member
    Messages: 322

    Hey guys, I have a older haldex plpw pump(model 1073?)and date Code(7400)
    that is on a side wing plow on a 1 ton dump that is giving me problems. When i go to list the plow, the blade drops,(some times), and to retract the blade, you have to energize the lower button and hit the retract button to go in.
    I have checked all the wiring in the controller and at the pump and it is wired correctly. the hoses are all wire correctly too.
    If i disconnect the lift hose it wont lift up or down, but i still have to energize the lower button to retract the blade.
    I pulled all of the valves(3 2 ways and 1 4way) and they were all clean with no crap around the filters.

    Any ideas?