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Down Pressure going up...

Discussion in 'Sno-Way Discussion' started by ddejonge, Feb 6, 2007.

  1. ddejonge

    ddejonge Junior Member
    Messages: 5

    I have a 25 series w/down pressure that's about 5 years old. It has the toggle controller (not joystick) When I push the regular down button, the plow will nicely start to float down, but if I activate the down pressure toggle, the plow starts to go up. (main up/down switch is still in the down position) I checked all connections inside the controller as well as the power-pack. Could it be the down pressure solonoid valve starting to fail? With down pressure turned of, everything works fine. Any ideas?
     
    Last edited: Feb 6, 2007
  2. basher

    basher PlowSite Fanatic
    from 19707
    Messages: 8,992

  3. ddejonge

    ddejonge Junior Member
    Messages: 5

    Thanks Basher,

    I never saw the parts list manual, that's handy.
    It's an intermitten problem, and I'm not sure if outside temp. effect it. Yesterday it was not working but it was extremely cold, (-5), today has warmed all the way to 15 degrees and seems to be working fine. Would you suggest replacing the coil, the spool valve, or both?
    That's a 4 position spool, so it's hard to know what's going on inside.

    Thanks again, DDJ
     
  4. basher

    basher PlowSite Fanatic
    from 19707
    Messages: 8,992

    I'd replace the fluid. Cold weather effecting it say's Frozen to me. Drain the fluid, flush with Meyer Hydra-flush, drain, then refill with a premium snowplow fluid. You could pull the valve and clean it. stick a little magnet down the hole to clean out any metal, then replace.

    Let me know:waving:
     
  5. ddejonge

    ddejonge Junior Member
    Messages: 5

    Sounds like a great idea. I'll try it. Thanks!
    DDJ
     
  6. hydro_37

    hydro_37 PlowSite Veteran
    from iowa
    Messages: 3,790

    If you put just a capful od Isopropel Alcohol in the fluid it will keep it from freezing too.
     
  7. ddejonge

    ddejonge Junior Member
    Messages: 5

    Thanks for the tip basher. Drained all fluid, cylinders etc. Cleaned out resevoir, filters, pulled valves and cleaned. Replace hoses while I was down there, tightened up the pivot bolt, Topped off with GOOD fluid this time, and it's like a brand new plow. All for less than 50 bucks, Awesome! Thanks again DDJ
     
  8. basher

    basher PlowSite Fanatic
    from 19707
    Messages: 8,992

    Great! May the snow fall upon you:waving: