V-plow on Tractor Hydraulics (snow)

   / V-plow on Tractor Hydraulics (snow) #1  

lostcause

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Simple question first: Anyone used / using a modern truck v-plow on their tractor via the tractor's hydraulics?

Long backstory: i just came across an advertisement picture for a fisher v-plow on the front of a John Deere tractor. Not sure how long they have been selling this setup, but i hadn't seen it until now. Stopped at a dealer to look into this and also look at pricing, and the dealer hadn't ever sold one, so they called the tech support line and what it looks like is that they offer it set up to use the conventional electric over hydraulic setup with the pump, lights, and everything, just as if it were on a truck. They also offer it set up to run off the tractor hydraulics, which is much less expensive since you don't need the light kit, isolation module, pump pack, and wiring harnesses. It requires just the lift and curl functions for a straight blade, or a 3rd function for a v-plow. The v has DA cylinders on the blade, so they said you use one circuit for each side. Certainly not as convenient as an electric control, but i think that would be the only way to do angle, scoop, and vee with just three functions. The one thing that I haven't figured is the lift. Normal plows have a SA cylinder doing the lift, and gravity doing the lowering, though many have pull down springs on them now i think. to do the lift on a tractor hookup, can it be plumbed with the same cylinder, or wouldn't you have to swap out to a DA lift cylinder?

The cost of this is a lot less than a truck setup - about 60% of the price, give or take, since you don't need a lot of the parts. Even so, it's still really pricey, so the thought of making my own with a used plow is still in my head. always lots of used plows for sale, and fairly easy to fab a mount by recycling any used set of push plates. I just want to understand the lift part. FYI this is a tractor frame mounted setup and not a loader mounted plow.
 
   / V-plow on Tractor Hydraulics (snow) #2  
If the valve you are wanting to use for the lift has a float function it will work fine,
while plowing just leave it in the float detent.
If it does not have a float detent you can do it but it is a bit more difficult,
when you raise the blade the opposite valve movement will allow it to drop down as long as it has weight to do so,
once it's on the ground and you return the valve to center it will not go any lower while you are letting it lower you
will be dead heading your hydraulics. If your plowing takes you over any dips or humps you will need to try lowering
the blade again while the front axle is on a high spot and holding the plow up.
 
   / V-plow on Tractor Hydraulics (snow) #3  
Like this?
20210102_155047.jpg
 
   / V-plow on Tractor Hydraulics (snow) #4  
I use the tractors 3rd function for a lift cylinder. Starting with a s/a cylinder and it worked, but the tractor didn't sound happy with gravity down. It may have been only "in my head" but I wasn't happy with it's stroke and found a dandy d/a cylinder with a hydraulically released check and a longer stroke. The "dead heading" noise was gone and no more drifting down of the lift cylinder during transport.
 
   / V-plow on Tractor Hydraulics (snow)
  • Thread Starter
#5  
If the valve you are wanting to use for the lift has a float function it will work fine,
while plowing just leave it in the float detent.
If it does not have a float detent you can do it but it is a bit more difficult,
when you raise the blade the opposite valve movement will allow it to drop down as long as it has weight to do so,
once it's on the ground and you return the valve to center it will not go any lower while you are letting it lower you
will be dead heading your hydraulics. If your plowing takes you over any dips or humps you will need to try lowering
the blade again while the front axle is on a high spot and holding the plow up.

OK, I think I get this now... what you're saying is that i plumb it to the SA cylinder so that when i push the loader control forward (which is normally forcing a loader down) i would actually be lifting the plow. then to lower it, i push further forward into float and gravity and a spring do the work? I just don't want to pull back on the loader control... That seems like it would work. I should have thought of that since the conventional setup on a truck you put it into float when plowing too.
 
Last edited:
   / V-plow on Tractor Hydraulics (snow) #6  
I believe that it is snow wolf who uses sequencing valves to run wing, angle, and other wing on one circuit for their loader plows. Something like that would work for a Vee Plow.
 

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