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HD75 not going down

Discussion in 'SnowDogg Snow Plows' started by Big_Steve, Feb 27, 2016.

  1. Big_Steve

    Big_Steve Junior Member
    Messages: 1

    I'm a newbie to this site, there is many posts on SnowDogg and I looked through many of them. I didn't find my problem and I'm sure its here somewhere. The plow wont go down, it does all the rest it just wont go down. The controller blinks twice red. Any help would be great.
  2. JustJeff

    JustJeff PlowSite.com Addict
    Messages: 1,934

  3. tsut

    tsut Member
    from NE Ohio
    Messages: 55

    Same issue (MD68)

    So I have a similar issue. Up, left/right, but no down.

    Troubleshoot so far:
    - Reservoir at 3/4.
    - Controller to "down", it clicks, says "float" after a second
    - SA gets power, magnetized
    - SA solenoid swapped with another (work on L/R (SC))
    - SA valve cleaned, it actuates (manually and with solenoid powered), maybe an 1/8" stroke
    - looked for debris by needle valve, by hose-housing fitting; seeing none…

    Now what? Hoses? main lift cylinder?


  4. Avalanche 2500

    Avalanche 2500 Member
    Messages: 51

    2 blinks, result=will not drop, check BLUE WIRE/SA COIL. Maybe rust
    in connection, try light sand paper to all connections then go with
    a little Dieletric grease purchased at any auto store, Good luck , drinkup:
  5. micklock

    micklock Senior Member
    Messages: 118

    Mine wouldn't drop so I drove around with float on and after driving over a few good bumps it finally dropped, ram was froze from sitting outside all summer.
  6. tsut

    tsut Member
    from NE Ohio
    Messages: 55

    Appreciate the snowdogg tech support! They suggested loosening the lift cylinder packing nut half a turn or so. Did the trick. Just in time for the snow to go north of us...