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Mm2 motor whining

Discussion in 'Fisher Engineering Discussion' started by Rzrrunner, Feb 3, 2015.

  1. Rzrrunner

    Rzrrunner Junior Member
    from Mass
    Messages: 4

    Hey guys I was out yesterday plowing and all of a sudden my plow won't lift or angle. Whenever I touch the joystick it reacts but it makes a loud whine/ grind noise. Any idea what it could be? Any help would be greatly appreciated. It's a 9 ft mm2 3 plug
     
  2. NHresident

    NHresident Senior Member
    Messages: 285

    I think u need a new plow motor
     
  3. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,957

    Reacts as in how? Does it actually move to the proper function?
     
  4. Rzrrunner

    Rzrrunner Junior Member
    from Mass
    Messages: 4

    No matter what way I move the joystick it will react with the same whine
     
  5. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,238

    How is the fluid level and condition?
     
  6. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,957

    Whenever I touch the joystick it reacts

    Again, if you go left will it go left? Will the plow actually move?
     
  7. ChevKid03

    ChevKid03 Senior Member
    Messages: 505

    Sounds to me the motor is running as it should but the pump isn't....
     
  8. leigh

    leigh PlowSite.com Addict
    from CT
    Messages: 1,987

    It sounds like the pump.
     
  9. buddymanzpop

    buddymanzpop Senior Member
    Messages: 599

    When is the last time the fluid and filter has been changed, it does sound like the motor is working and the pump is not moving the fluid. Or, make sure you did not lose the ground to you valve coils, if that were to happens the motor and pump will be working as they should but the valves are not opening to allow plow movement.
     
  10. leigh

    leigh PlowSite.com Addict
    from CT
    Messages: 1,987

    Its the pump,easy fix.
     
  11. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,238

    When was the last time you changed the fluid? You should really change it every year.May want to change it and and replace the inlet fitting and filter and clean the return screen before you put a pump on it
     
  12. leigh

    leigh PlowSite.com Addict
    from CT
    Messages: 1,987

    I might not be right but I think if you pull the pump you'll find broken shaft or gears,There's not a lot in there to break.Just my 2 cents.
     
  13. NEH

    NEH Junior Member
    Messages: 7

    Third time I've posted this today! If the motor runs (and squeals!) but you get no angle/lift, then it's possibly the solenoid control wiring from the truck to the plow. The connectors get cruddy, or the wires break, then you get no/partial solenoid control and the pump running, basically deadheading the pump. Have someone wiggle the wires and connector while you hold the joystick in one position...
     
  14. leigh

    leigh PlowSite.com Addict
    from CT
    Messages: 1,987

    Who wins the guessing contest ? What was the problem?