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Western Unimount not moving

Discussion in 'Commercial Snow Removal' started by JohnnyU, Jan 17, 2003.

  1. JohnnyU

    JohnnyU 2000 Club Member
    Messages: 2,040

    Last night while plowing the plow stopped working, however i could hear the motor and pump running. every once in a while when i moved the joystick, the blade would twitch, then the pump/motor would just run, kinda screeching. I talked to my dealer (not really helpful). After taking apart the quills, i discovered that one poppet valve had a brocken spring, replaced it, the plow worked fine, long enough to get home and drop/raise angle a few times (basically worked correctly) Then i was going to widen a path this afternoon, dropped it, angled and then it would not raise, it now has the same symptoms as before. I replaced the second poppet on the top of the valve body, but did not fix the problem. Can anyone shed a little light on my problem? Thanks, John
  2. Chuck Smith

    Chuck Smith 2000 Club Member
    from NJ
    Messages: 2,317

    If the motor is running and "whining" like it is going 3 times faster than it should, I would clean the strainers on the pump. To get to them, drain the fluid, remove the motor, then unbolt the pump. There are 2 filter screens on the pump.

    You'll need a new base gasket for the motor when you put it back together. Those filter screens are VERY fine, and can get plugged up easily. Should take you about a 1/2 hour to do.

  3. JohnnyU

    JohnnyU 2000 Club Member
    Messages: 2,040

    Thanks for the quick reply Chuck, Ill check that, but before i do, ill tell ya that i just replaced them this summer, when i flushed out the pump/cylinders. But it may have clogged back up. Ill check that, thanks

    If anyone else has had a similar experience, id be eternally grateful to hear your solution. Thanks Chuck!!
  4. Garagekeeper

    Garagekeeper Senior Member
    Messages: 459

    Poppet Valve Spring

    If you had a broken spring in the poppet valve it's possible that a small part of that broken spring has worked itself up under one of the cartridge valves, causing it to jam up. :rolleyes: