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? on pull plows

Discussion in 'Commercial Snow Removal' started by PTSolutions, Oct 11, 2009.

  1. PTSolutions

    PTSolutions PlowSite.com Addict
    Messages: 1,533

    with all the talk about pull plows, I just had a quick question. With the pull plows that have down pressure, like the snowman plow pictured below, what happens in a situation where the driveway pitches downwards toward the street, and the transition to street starts pitching up, creating a valley where the apron ends and street begins, how does the plow move up and down as the truck goes from driveway to street? I plow several driveways where this situation is common and pretty substantial, If i would stop my truck with my front wheels on the street and rears on the drive, i would have 3' or more clearance under my truck.


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  2. RBRONKEMA GHTFD

    RBRONKEMA GHTFD 2000 Club Member
    Messages: 2,592

    I always have my finger on the switch adjusting the plow up or down if I am in a situation like that. If you apply enough down pressure you wont have a problem.
     
  3. PTSolutions

    PTSolutions PlowSite.com Addict
    Messages: 1,533

    i would just be worried about busting a hose or something like that, b/c as the truck goes down the incline the blade will want to raise up b/c of the grade and with the d.p. applied i was just wondering how that whole situation works.
     
  4. Gear_Head

    Gear_Head Senior Member
    from IL
    Messages: 245

    a friend of mine has a rear plow that he installed some kind of pressure relief valve from them to help with this situation. Sorry I don't have more to add, I have not actually seen it yet.
     
  5. Camden

    Camden PlowSite Fanatic
    Messages: 6,598

    I keep the controller in my hand and toggle it up and down as needed. A little tricky at first but you learn quickly.
     
  6. WIPensFan

    WIPensFan PlowSite Veteran
    Messages: 3,491

    I've never had a problem with my Daniels, and most drives do what your talking about. The rear suspension travels and the pull plow jacks the truck. Hard to explain but I've never toggled anything, it just follows grade.
     
  7. TremblaySNOW

    TremblaySNOW Senior Member
    Messages: 358

    is thair a a float button?
     
  8. WIPensFan

    WIPensFan PlowSite Veteran
    Messages: 3,491

    No, your just driving forward with the front tires and riding the pull plow in the back.
     
  9. TremblaySNOW

    TremblaySNOW Senior Member
    Messages: 358

    you mean that the rear tires are of the ground?:laughing:tymusic
     
  10. WIPensFan

    WIPensFan PlowSite Veteran
    Messages: 3,491

    It's close!
     
  11. terrapro

    terrapro PlowSite Veteran
    from MI
    Messages: 3,874

    If you do a search there is a "how to" thread to make any rear plow have float.
     
  12. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    Dont need to make it float. Yes you put enough pressure on the blade to slightly lift the rear of the truck. With some pressure they will follow the contour change without having to do anything, step changes might require that you bump the switch. Units run 5000 psi hoses so if hoses are in good shape theres little chance on will break. Power units also have a built in pressure relief vavle and will open if the weight is more than the unit could handle.

    Had several trucks with backblades and if we had to do a rear tire change we would throw some blocks under the blade and pick the rear of the truck up, no jack required.
     
  13. TremblaySNOW

    TremblaySNOW Senior Member
    Messages: 358

    Does anyone have any pics/manufactures?
    How does it mount to the back of the truck?tymusic
     
  14. scitown

    scitown Senior Member
    Messages: 422

    My snowman would actually get stuck down in the situation you are discribing. I always have my thumb on the toggle and try to remember to work it. Its only on certain drives that it does it but it does it almost every time. THe plow will start to trip and then get stuck. I have to back up an inch or so to take some of the pressure off so I can lift it back up. I guess Im lucky I haven't ripped the hitch off my truck or snapped the plow off like some have on this site.
     
  15. scitown

    scitown Senior Member
    Messages: 422

    Maybe I miss read your post but a valley is less of a problem becuase your rear truck springs should change the height. Not as much of a problem as the drive being higher than the street. Thats when I have a problem.
     
  16. Camden

    Camden PlowSite Fanatic
    Messages: 6,598

    Same thing will happen with my Snowman. You just have to remember to toggle the switch when you're in those positions and you won't have any trouble.