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Fisher MM1 Moves off and on, When it wants too?

Discussion in 'Truck & Equipment Repair' started by TripKore, Jan 28, 2015.

  1. TripKore

    TripKore Junior Member
    from Boston
    Messages: 25

    A month ago, My plow started moving slowly to not at all. Then It just moved to the right even when pressing left on the controls.

    So i emptied the res, cleaned the filter, new fluid in. Plow still didn't move. The plug seemed old, might have had a broken tip? I went out, replaced the plug. Still not moving. Ran a test light, checked power, Seem to be getting power. Checked & Changed the 3 Selenoid, Valves, Still not moving.

    After it sits for 20 minutes or so. It will move just like it did when it was brand new, for a few minutes, then not again. Will not move. The motor runs, but no movement in the blade. Then again a hour later, it will work again, then after a few minutes, NOT AT ALL. So it works when it wants too?

    Can't say "it's frozen" Because we were doing all these changes in a heated garage.

    Any ideas whats going on?
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005

    Seem to be getting power.

    What does that mean exactly? It is or it isn't. Simple as that.

    Have you cked all the gnds?
     
  3. TripKore

    TripKore Junior Member
    from Boston
    Messages: 25

    All the grounds were taken off and cleaned, and put back. The motor always runs, Just blade doesn't move half the time.
     
  4. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005

    Have you test lighted the coils per the proper button pressed? All you said was test lighted them.

    Might need to preform a psi test next
     
  5. TripKore

    TripKore Junior Member
    from Boston
    Messages: 25

    Yes, we checked power going into the pump, If there was no power, The blade wouldn't move, i mentioned it moves when it wants too.
     
  6. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005

    Did you test light coils per the function that you pressed?
     
  7. TripKore

    TripKore Junior Member
    from Boston
    Messages: 25

    Anyone else?
     
  8. xgiovannix12

    xgiovannix12 PlowSite.com Addict
    Messages: 1,419

    Did you test light coils per the function that you pressed?
     
  9. TripKore

    TripKore Junior Member
    from Boston
    Messages: 25

    lol.. yes, they work, i don't see how that's logical question if the plow works (when it wants too)
     
  10. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005

    If you press left, and the plow doesn't move left,,,,what would you test to see what was wrong?
     
  11. xgiovannix12

    xgiovannix12 PlowSite.com Addict
    Messages: 1,419

    test the left coil??? do I get a cookie diesel
     
  12. 1olddogtwo

    1olddogtwo PlowSite Fanatic
    Messages: 11,552

    You asking questions, and ur busting their balls or ignoring them....WTF

    Don't come here to jack people around.
     
  13. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005

    No....a carrot. I didn't wanna say anything, but your getting a little puggy around the center section. Heath food now
     
  14. TripKore

    TripKore Junior Member
    from Boston
    Messages: 25

    I said a few times the plow moves, it works...People are answering questions about power to the plow. I don't see how that's logical. If there was no power, The plow wouldn't move. But it does have power, as i mentioned, it works off and on.
     
  15. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005

    I'm gunna ask an honest question.

    A) works when it wants....meaning what?

    B) do you honestly have any mechanical experience/knowledge at all? And I'm not just talking pumping gas, cking oil, or airing up tires.
     
  16. TripKore

    TripKore Junior Member
    from Boston
    Messages: 25

    Meaning what? I clearly explained in detail what it does in my first post.
     
  17. 1olddogtwo

    1olddogtwo PlowSite Fanatic
    Messages: 11,552

    They asked if u checked the coils, u haven't answered
     
  18. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005

    And I clearly explained in my posts what to start testing to aid in the diag.
     
  19. 1olddogtwo

    1olddogtwo PlowSite Fanatic
    Messages: 11,552

    SS,X, why you continue to pound ur head of the wall is beyond me.
     
  20. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005