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Fisher HS Angling Problem,

Discussion in 'Truck & Equipment Repair' started by fed123, Nov 4, 2012.

  1. fed123

    fed123 Junior Member
    from 06457
    Messages: 5

    I have an old Fisher HS Electric Hydraulic Pump and plow. This problem started last year. It seems like I keep getting air in the power angling. Each time I go to the left or right, it is very jerky. I've tried to bleed the system of any air but that doesn't help.
    Does anyone have any ideas on what I can try next? It goes up and down fine.
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    How do u know if you valving is operating property?? Air will escape to the highest point automatically. I would look into the valve body....unless your positive that its just air
     
  3. fed123

    fed123 Junior Member
    from 06457
    Messages: 5

    I'm guessing its air cause I can move the plow back and forth by hand until it hits the oil in the cylinders.
     
  4. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    Then loosten the fittings and move the plow by hand
     
  5. fed123

    fed123 Junior Member
    from 06457
    Messages: 5

    Yes I've tried that many times and still get no where. Any more ideas? Could the valve be bad?
     
  6. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    Aint that what I said up there in that there post. Air will goto the highest point.period!!! Look into your valveing
     
  7. fed123

    fed123 Junior Member
    from 06457
    Messages: 5

    What goes wrong with the valve?
     
  8. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,988

    Gummed up. Seals break etc......
     
  9. fed123

    fed123 Junior Member
    from 06457
    Messages: 5

    Thx, I'll pull it a part next week end and see what I can find. I hope parts are still available for this. I'm looking at the pics of the parts now and at least I got part numbers to go by.