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Implement Alley Discussion Forum

Hey Thurlow

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Texasmark

03-30-2008 07:31:36




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Beins you said what you just said, I bought a cone harrow last year and was wondering how to set it up. Don't have the number handy. 11' wide, medium to heavy duty chassis. Blades are about 22 inches diameter.

When you look at the cone, you (I) would think that it would cut best if the leading edge of the cone was aligned with the direction of travel. That way it could slice the sod like a coulter does on a moldboard plow.

This would require a very deep V of the front gangs. The main boom has no holes for the boom pins for this aggressive a V. This would also throw the cut material off to the side as the rear of the cone would be roughly 45 degrees off centerline. No biggie, just different than a regular blade.

If you look at the pins to set the booms (gangs) they are in about the same spot as they are on harrows with normally shaped discs.

Setting up the booms like that (shallow V ) means that the incoming dirt hits the back of the cone and for first tillage of heavy clay, I don't see this as the best way to get the blade to cut the sod.

Where did you run yours and what did you do with it.....break fresh ground, like in plowing or did you follow a moldboard plow and use it as a cultivator? What type soil did you run in?

We don't use moldboards down here as the heavy clay just gums them up. Have to have a rolling disc so we use a disc harrow as primary plowing implement or a thing called a "one way" which is a string of rolling discs on a boom also, but there is a tail wheel to counter balance it and it only throws dirt "one way".

Thanks,

Mark

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thurlow

03-30-2008 10:14:24




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 Re: Hey Thurlow in reply to Texasmark, 03-30-2008 07:31:36  
I claim no expertise, but many years experience; not sure I understand your question, but every disk I ever pulled .....the more angle (to the direction of travel) in the gang(s) the more aggressive the cut. This thing I had was a monster; similiar to the old Rome disks. They were typically called off-set or (locally) new-ground disks. Only used it in sod.....changing from pasture/hay field to row crop or in newly cleared...from timber..... fields. I've forgotten, it was about 9 ft; bought it to pull behind a 4020 with 15 inch duals; it worked better behind a 120-plus HP tractor, although it needed to be run at 4 MPH or less. The outside blade on the back gang left a deep furrow; in use, we used it much as you would a breaking plow, filling up the furrow from the last pass with the new pass.

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Texasmark

03-31-2008 09:00:11




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 Re: Hey Thurlow in reply to thurlow, 03-30-2008 10:14:24  
Thanks. I think they call what you identified an "offset". Mine is just the straight tandem disc harrow; V front and V back.

I just bought the disc last year and I don't have any "virgin" sod to breakup so it may be awhile before I use it again. But when I do I will have to experiment to see what works best. Just wondering if you had any advice.

Mark



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