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Super A's and Snow Plows

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Brian

08-21-2003 18:48:41

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I've recently bought a used plow for a 4x4 truck, I believe it's just a average 7 foot model. I'm contructing a mount for it on my super A. There is a frame that attaches to the rear drawbar to take any strees and ensure that there is none going through the torque tube.I was planning on using the hydraulic to lift the plow, it will rely on gravity to lower it. Anyhooo.. a local farmer came by today and saw what I was doing. He told me that the front end couldn't handle this plow. He thought the front bearings and pivot pin weren't designed for it. I need some other opinions. I can't see how the small time I have the plow raised will do alot of wear, and when the plow is down...there should be no stress on the front end. I was also planning on putting some counter weight on the back to give me added traction. Our drive way is about 500 feet long, and not paved.

One final question, does it make much difference what height those 2 horizontal pivot pins are at ? I didn't measure how high the original was on the truck, but I would guess it was around 12 inches. Mine is at 14.

Thanks for any advice/opinions and facts.

Brian.

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Adam Koppy

08-26-2003 06:15:32

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Re: Super A's and Snow Plows in reply to Brian, 08-21-2003 18:48:41

The Weight will be less of a problem than the width. When the blade is at an angle so the snow slides off to one side, it applies a force at an angle. This force pushes the front wheels sideways. I would cut the width of the blade so that when it is at an angle it is 2" wider than the outside of the wheels.

The weight may wearout the well bearings faster.

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RayP(MI)

08-22-2003 19:27:36

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Re: Super A's and Snow Plows in reply to Brian, 08-21-2003 18:48:41

Assuming you do get a plow going on that tractor, you'll undoubtly need chains, and extra weight - wheel weights, etc. Traction with ag tires, on ice and snow can be pretty poor! Depending on the blade you have in mind, truck blades can be pretty heavy. They do make some lightweights, so you might get away with yours on the tractor, but be awfully careful. That front end was designed to hold up the tractor and perhaps a cultivator. My plow truck weighs in at 7,110# when in snow plowing mode. A far cry from your tractor. Even so, when I push that "up" button the front end drops significantly!

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TimV

08-22-2003 08:08:34

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Re: Super A's and Snow Plows in reply to Brian, 08-21-2003 18:48:41

Brian: While the cobbler's first rule is "anything can fit on anything with enough work", I believe that you're expecting a lot from your tractor to mount a truck plow on it. A 7' blade is going to severely stress the entire tractor, not just the front end. Though I don't know where you live (and by extension how much snow you can expect to get) if you're anywhere that measures its snow in feet, you're going to run into problems. The A will not have enough power to push a full blade of snow, especially a blade designed for a 150+ hp truck. Taking small bites won't work as you'll end up sliding off the track due to the side force of an uneven load. Additionally, I don't know if you'll have a lot of luck lifting the plow with the rockshaft, if that is your plan. On the other hand, if this is just a rig to clear a few inches of snow at a time, you MAY get it to work. You'll still need quite a bit of weight on the rear to get any traction at all--the plow will tend to raise the rear as it pivots on the front.

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scotty

08-22-2003 07:45:28

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Re: Super A's and Snow Plows in reply to Brian, 08-21-2003 18:48:41

Brian, This is a picture of the snowplow I built for my 42 A. Blade is 68 in wide and about 14 in high. I built a frame between rear housing and another frame from there to front steering box. This lessens stress on torque tube. I made a homemade lift arragement.
scotty

Snowplow

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Harold Hubbard

08-22-2003 05:51:14

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Re: Super A's and Snow Plows in reply to Brian, 08-21-2003 18:48:41

The pins should be just high enough so the A-frame of the plow is nearly level, with the plow sitting on the ground. If they are too high or low, when the plow is angled to the left or right, one corner will be low. In extreme cases this will cause that corner to dig in when the ground is soft under the snow. If it's only a little off, it will wear the outside corners of the cutting edge faster than the middle. You can demonstrate this by swinging the A-frame from side to side, with the plow off the tractor. Set the frame higher or lower than level and measure the height of both pin holes in several swing positions.

I have seen several A plows that use a pair of oak timbers to brace back to the drawbar, about a 3x4 as I recall. This gives a little bit of flex in the whole thing and helps absorb shocks. When set up this way, the front part of the frame is not rigidly mounted, but can pivot back and forth a little bit.

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Dave BN

08-22-2003 03:50:55

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Re: Super A's and Snow Plows in reply to Brian, 08-21-2003 18:48:41

They made a factory front blade for the Super A, 100 etc. I have seen them for sale, though they are kinda rare at least in my area. It would be worth looking for. Might be modle 52A but i'm not sure about that. Oh, your going to need skid chaines also. Dave.

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Hugh MacKay

08-21-2003 22:43:51

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Re: Super A's and Snow Plows in reply to Brian, 08-21-2003 18:48:41

Brian: To start with your Super A hydraulics aren't going to lift that 7 foot truck plow. At least not with the rockshaft. You may lift it with a remote cylinder. And yes your front end will not stand the weight if you do get it off the ground. Contrary to what you are thinking your plow will be in the up position a lot more than you realize. I have a 6 foot plow that weighs about 1/2 what your truck plow will and it works just great. What you will find with that heavy plow is you will push snow to a point where some falls over blade. Then you will not be able to back away with all that weight up front. The 7 foot truck plow will work fine on a 40-50 hp tractor.

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Lee J Sackett

08-21-2003 22:39:12

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Re: Super A's and Snow Plows in reply to Brian, 08-21-2003 18:48:41

Remember that that tractor was originally designed to pull plows around, cultivate, etc. Lots of abuse. There was even a front end loader (model 1000?) designed to work on an A, so I don't think you are going to have a problem with that plow. I like your idea with the drawbar. It was astute of you to think of the torque tube. I've seen lots of those that are cracked for various reasons. As far as the height of the pins go, I guess you need to decide what angle the blade will be at when it runs along the ground. If you want to be able to dig a little with it, then lower the pins to increase the rake angle the plow blade makes with the ground. If you don't want the plow to dig in, then raise them. Keep in mind if the pins are too high, the plow might actually be on enough of an angle that it might just ride up over compacted snow. All that said, I really don't think you'll have a problem at 14".

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