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Plow does not hold position

Discussion in 'Boss Plows Discussion' started by Shackleton, Feb 24, 2014.

  1. Shackleton

    Shackleton Junior Member
    Messages: 5

    I have a used RT3 Straight-Blade with SmartHitch 8'6" plow. I bought it used in 2012. Loved plowing with it all 2012 through 2013. In the past couple of weeks it's having a problem holding the plow in the angle or in the down position and it's getting worse.

    When I put the plow down to plow, as it builds up pushing snow, the blade will slowly lift up to the point where I'm driving in deep snow. I have to stop, backup, put the plow down again, and drive forward again.

    Also, if I put the blade in the straight position, and I'm plowing with a load that is heavy to one side or the other, the blade will slam to an angle at that side...so if the load is heavy on the right, it will slam to a right angle.

    Anybody have any ideas what's wrong with it. I talked to a mechanic at the local Boss Dealer and he says this is the way it is supposed to work so that nothing gets damaged. I don't believe him.
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,983

    How much and kind ( wet heavy or light and fluffy) snow are you pushing?
     
  3. Shackleton

    Shackleton Junior Member
    Messages: 5

    3 - 4 inches. It raises up, or slams to the angle much faster on wet heavy, but it still does it on light and fluffy too.
     
  4. SnoFarmer

    SnoFarmer PlowSite Fanatic
    from N,E. MN
    Messages: 8,592

    On the floating over the snow
    This can happen with dense or packed snow
    Even if you just pushed it up.

    2 things
    1. The hight of the push beam is to low
    2. A worn cutting edge

    We got a lot of snow on the ground and things are hard, so it catching and swing to one side is normal
    How big of a bite are you taking?
     
    Last edited: Feb 25, 2014
  5. Shackleton

    Shackleton Junior Member
    Messages: 5

    I'm not taking a very big bite of snow. As the problem is getting worse, I've had to cut down on the quantity of snow I'm trying to push. The problem is getting so bad that it's almost to the point where It's not worth using it to plow.

    I understand that there are pressure relief valves that work to prevent damage...but what I'm experiencing can't be normal...
     
  6. muddy

    muddy Junior Member
    from Indiana
    Messages: 9

    copy and paste of what I posted in the home owner section.............


    I'm new to the whole snow plowing thing. I picked up a used western almost 2 years ago, and just got around to installing it on my jeep last weekend. Anyway, I had to do some research to get everything hooked up and working properly. I found a mechanics service guide online, and printed it off. Maybe you can find something like that for your BOSS plow?

    Also, The guy you talked to at the dealership is correct. At least that's how my western is designed. There are "cushion valves" built into the hydro system. they are like a pop-off valve on an air compressor, If you hit something with one side of the plow(when plow is straight) and the pressure in the angle ram spikes, the cushion valve is supposed to open and let the blade angle. This is supposed to reduce shock and damage to the plow and vehicle.

    If I had to guess, I'd say that the springs on your cushion valves are getting week, or dirty fluid is keeping a valve(s) from closing completely, which is allowing fluid to leak between the angle cylinders.



    Again, I'm really new to all of this. I'm not even sure if your plow is even comparable to the one I have. These are just my thoughts after having gone through my plow to get it operational after setting for several years.
    Reply With Quote
     
  7. Shackleton

    Shackleton Junior Member
    Messages: 5

    Thanks muddy,

    I'll start looking into the things you suggested