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How do you achieve the down pressure ?

Discussion in 'Introduce Yourself to the Community' started by Tahoe99, Mar 2, 2006.

  1. Tahoe99

    Tahoe99 Member
    from NY
    Messages: 76

    On the regular plows I've seen, there are 3 cylinders: 2 for angle adjustments and one vertical for lifting the blade up and down. How is the down pressure created ? Just the weight of the blade ?

    Thanks
     
  2. PlowVA

    PlowVA Senior Member
    Messages: 210

    That's all. Besides the snoways with downpressure it is just the weight of the plow. Without adding a backdrag blade, my Blizzard 760LT backdrags quite well. Not too heavy, but scrapes pretty clean.
     
  3. ksland

    ksland Senior Member
    from ma
    Messages: 420

    Some plows have downpressure... Which is a piston that pushes down on the plow. Most common plows don't. Dropping the plow with it's own weight is not downpressure.
     
  4. Mowerpan

    Mowerpan Senior Member
    Messages: 305

    Plows with downpressure use a direct linkage system(no chain) and for down pressure instead of justing having a "power up" for the hydraulic cylinder, they also have a "power down" option which creates the downpressure I believe,
     
  5. Idealtim

    Idealtim Senior Member
    Messages: 268

    And My question is if the plows that have down pressure[direct connect] also have the float option on the controls?
     
  6. tessdad

    tessdad Member
    from S.E. MA
    Messages: 71

    I own two SnoWay plows. In normal operation up is up as long as you hold the button down (same as side to side movement).
    If you hit down button, the plow falls, leaving the valve in the float position. If you chose to add down pressure, you hit a different button, that allows the plow to not float but push down. It is a smart system, in that if you were to go up a hill a bit of pressure would bleed off though a preset relief, and if you were to go over a hill and need more pressure, the pump would run a bit to make up the factory selected hydraulic pressure, (575#, I think)
    Nothing back-drags as well, I make a custom back-drag edge, and it doesn't work as well. In addition you can use the down pressure going forward to scape up what you might have packed down.