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8611LP pump motor failure

Discussion in 'Blizzard Plows Discussion' started by tpendagast, Feb 17, 2014.

  1. tpendagast

    tpendagast Member
    Messages: 53

    Pump motor just has a "melt down" and starts smoking like a chimney.

    Only way to shut it down is unplug, when you take it apart it's hard to tell what happened or why...except stuff is black and melted.

    Anyone know what's up?

    Second motor (different plows) this season to do the same thing, one this morning was just sitting there, with the truck running when it happened... no heavy plow use or hours of running.... just started puffing....

  2. tpendagast

    tpendagast Member
    Messages: 53

    Several bad motors on the shelf...most are dry and dusty, this one and another are kinda "oily"

    can the pump seal be bad and leaking/back syphoning under pressure?

    Where else would this 'oiliness come from"?
  3. Jerre Heyer

    Jerre Heyer Senior Member
    Messages: 948

    Oil in motor is from bad block seal between pump and motor. IF the motor runs long enough and builds up enough heat it can melt the seal.

    As far as the motors staying running. What model plow PH1 or PH2. Either can suffer from bad ground ( loose ground ) anywhere in the harness and cause this problem. They also can suffer from sticking or locking on solenoids.

    Hint, if your truck lights are off when you have this problem and the running lights come on the truck and the plow you have a ground issue.

    PH2 plows can get a damaged white or brown wire in the harness or a rubbed ( grounding out ) small black wire on the plow solenoid and cause lock up.

    The other thing that causes this is low amperage / voltage due to battery or alternator issue. Will lock up the solenoid.

  4. cl733

    cl733 Senior Member
    from Canada
    Messages: 263

    Or simply your solenoid is done, mine did that last year , you don't know its on till blade n movements get real slow and you get out to see if theres a problem and hear the motor running, I found a bunch of balls of plastic like matter in the motor most likely brushes,
  5. tpendagast

    tpendagast Member
    Messages: 53

    Yea one of ours had "plastic balls" too...
    This time it was just poof KAMBOOM:yow!: no plastic balls