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Tractor Talk Discussion Forum

Tandam Disc Harrow

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Benj. J. Joe Br

01-25-2004 12:28:41




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Hello Everyone, I'm Building a Tandom Disc Harrow. What is the angle the disc should be set? Is it necessary to have them adjustable? All help is appreciated.
Thanks, Joe




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Mark

01-27-2004 08:01:47




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 Re: Tandam Disc Harrow in reply to Benj. J. Joe Browning, 01-25-2004 12:28:41  
I have an old IH 10 footer which came originally with 18" discs, scalloped front, plain rear. It is on a rigid frame which I think is necessary to force the plow to work against it'self when breaking soil. It has 4 adjustable sets of discs and I run the discs in the highest angle that I can which is 23 degrees. I think the max angle is such that two adjacent discs cut through the soil and leave no turf (1st pass in sand, 2nd pass in clay).

I recently redisc'd it because the fronts wore down to 16 inches. I replaced with 22" because I wanted to use it as a plow, not a disc harrow.

I installed the 22's and put about 600# of dead weight on her and WOW. I broke up heavy clay(Houston Black Clay) that hadn't been tilled in 30 years and after 2 passes and it just sifted through your fingers (after it set for awhile). I then came back with a spike toothed harrow (rigid frame also) and I have a smooth soft field (to 6# deep) ready for planting. My JD 4010 (80 hp) pulled it nicely.

I'm a little guy (acreage wise) and now I only need 2 implements to prepare acreage for planting.

I don't like moldboards because I don't want to bury my topsoil, they leave a bumpy mess, they are hard to control (old ones with half the parts missing) and they aren't very wide (unless you can affort a big tractor).

Mark

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showcrop

01-26-2004 07:45:01




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 Re: Tandam Disc Harrow in reply to Benj. J. Joe Browning, 01-25-2004 12:28:41  
why build your own when there so many used ones for sale? But if you have to, yes you want to make it adjustable, so that you can cut agressively at first, then after getting the ground broken up you can set it straighter to smooth out ridges then if you're seeding down you drag a pole behind your disc to smooth it. good luck!



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Why Double Post

01-25-2004 21:19:18




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 Re: Tandam Disc Harrow in reply to Benj. J. Joe Browning, 01-25-2004 12:28:41  
Saw your post on the Implement Alley Board. Where do you want to be answered??



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Benj. J. Joe Browning

01-26-2004 12:41:04




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 Re: Re: Tandam Disc Harrow in reply to Why Double Post, 01-25-2004 21:19:18  
Hello why Double Post AKA Forum Police, The reason is quite simple, not all individuals read postings on all the different forums. Answer both, answer one, or most likly do not answer either one



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Cosmo

01-25-2004 13:03:19




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 Re: Tandam Disc Harrow in reply to Benj. J. Joe Browning, 01-25-2004 12:28:41  
Sorry I can't help you with the angle, but I would go to the trouble and expense to build it adjustable. You can do so much more with it. Just my humble opinion.



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