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Implement Alley Discussion Forum

Plow damage questions

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Dave on the San

09-01-2006 13:18:01




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Generally how big a rock does it take to damage a plow? I have an old Oliver 3 bottom pull type plow. I am thinking of plowing up a couple of acres for fun, but my ground is aluvial fan (sand that varies in size up to gravel), and the occasional rocks can get as large as about six inches in diameter. I can disc to loosen the top layer of soil first to perhaps allow rocks to shift upwards more easily. Will this make a difference to the longevity of the plow?
The next question is about the attachment to the drawbar of the tractor. This plow does not have a snap coupler and looks like it was used that way. Is it safe to run without one? What is the best way to attach to the drawbar without one? I am thinking of using my Farmall H if I can figure how to remove the third bottom and still have the mechanical trip/lift work. If not I will try to fix the clutch on an Allis Chalmers K tracklayer and see if that will pull all three bottoms.
Thanks
Dave on the San Andres

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Dave on the San Andres

09-08-2006 14:02:10




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 Re: Plow damage questions in reply to Dave on the San Andres, 09-01-2006 13:18:01  
Thanks very much for the info. I think that this information will help. Looks like I should go slow and pre-rip/subsoil. Since there is no trip mechanism, perhaps What I should do is make some calculations for shear strength and attach the plow to the hitch with a particular size shear bolt.
Now all I have to do is wait until rain this winter to start plowing (if it rains at all this year). I also just aquired another project/basket case that may be able to pull all three bottoms. It is a Case 310B-H.
Dave

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Dale

09-02-2006 17:06:42




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 Re: Plow damage questions in reply to Dave on the San Andres, 09-01-2006 13:18:01  
I wish we only had to deal with 6 inchers. We have places where we have to lift the plow to keep from hooking the edge of granite bedrock where the edge comes close to the surface.



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Bob Collins

09-02-2006 05:08:13




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 Re: Plow damage questions in reply to Dave on the San Andres, 09-01-2006 13:18:01  
Hugh is exactly right, go slow and make the fun you are having last longer.



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Hugh MacKay

09-01-2006 20:22:39




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 Re: Plow damage questions in reply to Dave on the San Andres, 09-01-2006 13:18:01  
Dave: You say this plow does not have a trip hitch. You also say it is Oliver 3 bottom. Are you sure it does or doesn't have trip beams? I agree, you should have one or the other. If you have trip beams you should make sure they are tripping properly. Trip beams have a tendancy to get rust on the trip mechanism, during the off season. One should always manually trip each bottom at the beginning of each plowing season. Your manual will tell you how to do this.

I'll give you a bit of old fashioned advice about plowing with 6 to 15 inch rocks present. You'll do far more damage where there is 5 rocks to the acre, than where there is 5,000 rocks to the acre.

Where there are 5 rocks to the acre you will plow much faster and when you hit, you hit much harder. The secret to plowing where large rocks are plentiful is 2 mph. At that speed you will roll out that 10" rock without so much as a jolt. At 4 mph that same 10" rock would have tripped the plow and may have done damage anyhow.

My friend, speed control is the secret.

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Larry NE IL

09-01-2006 20:18:35




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 Re: Plow damage questions in reply to Dave on the San Andres, 09-01-2006 13:18:01  
I never thought of rocks being too much of a menace. Small ones plow up, and the plow bucks over the big ones. Tree roots...another story. You get a full head of steam going and snag a big old tree root and it will stop you dead in your tracks. With the front wheels of the tractor 3'-4' off the ground, and you huggin the steering wheel stompin' around to find the clutch.



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Charlie M

09-01-2006 16:50:35




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 Re: Plow damage questions in reply to Dave on the San Andres, 09-01-2006 13:18:01  
I've hit huge rocks with my plows and only broke the plow point. Plows are tough. Six inch rocks are pretty easy to plow up.



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Charlie in NY

09-01-2006 15:56:14




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 Re: Plow damage questions in reply to Dave on the San Andres, 09-01-2006 13:18:01  
You might want to get a relatively cheap single blade subsoiler (be sure to get one with a shear bolt) and "pre-locate" the rocks. I find the occasional glacieral artifact hidden in my hardpan, a couple of which I figure are about the same size and weight as my tractor. MUCH better to sacrifice a $1 bolt than tear a moldboard.



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Nebraska Cowman

09-01-2006 13:31:26




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 Re: Plow damage questions in reply to Dave on the San Andres, 09-01-2006 13:18:01  
I've plowed up some pretty big rocks. I doubt your 6 inchers will hurt anything.



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