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  1. #1
    Platinum Member bdog's Avatar
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    John Deere 4440

    Default Horsepower needed to pull this disc?

    I am looking at this 14' pull type tandem disc. It is very heavily built. Probably the heaviest disc of this size I have seen. So heavy in fact that it has 4 gauge wheels. It has 19" front and 21" rear discs. It is a Kewanee 610. I looked it up online but could not find any specs but it appears to be twice the weight of some other 14' units I have looked at.

    My tractor is a 95 HP 2WD that weighs about 9,000 lb. Think I will be ok or should I look for something lighter or smaller? Years ago I pulled 14' disc that was a lot lighter in this area with a 47 HP 4WD tractor with no problems.
    Attached Thumbnails Attached Thumbnails -kw1-jpg   -kw2-jpg  
    1980 John Deere 4440 with duals
    2006 John Deere 322 compact track loader

  2. #2
    Platinum Member bdog's Avatar
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    John Deere 4440

    Default Re: Horsepower needed to pull this disc?

    Here is a picture of the old disc which I no longer own that I was able to pull with a 47HP 4WD tractor.
    Attached Thumbnails Attached Thumbnails -p5130005-jpg  
    1980 John Deere 4440 with duals
    2006 John Deere 322 compact track loader

  3. #3
    Elite Member smstonypoint's Avatar
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    SC (Upstate) & NC (Piedmont)
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    NH TN 55, Kubota B2320 & RTV 900, Bad Boy Outlaw 61" ZTR

    Default Re: Horsepower needed to pull this disc?

    http://archive.lib.msu.edu/DMC/Ag.%2.../PDF/e1152.pdf reports separate estimated drawbar HP requirements for a heavy duty disc (7.5/foot of width) and a disc harrow (3.6/foot of width in first pass over plowed ground).

    So, what about the Kewanne? It looks like a heavy-duty disc and a disk-harrow to me.

    Steve

  4. #4
    Elite Member
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    the Steernbos (Holland)
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    Zetor 3011, Zetor 5718

    Default Re: Horsepower needed to pull this disc?

    we used to use a 14' harrow with a 185hp Fendt 615 LSA in front of it, which was ok. Another year the 185 hp tractor was in use so my brother took the 90hp 2wd Fendt 600LS out of the back of the barn, i had to help pull with the 50hp 4wd 5245 to get any work done, though the 90hp 2wd had the power but lacked traction on damp soil, and the 50hp 4wd had the traction, but lacked the power.

    It depends a lot on the weight (penetrating depth) of the disks and the disk angle. Generally speaking a 2wd on duals should bring enough traction to the ground to achieve working speed.
    Free scrap is a good investment !!!
    “The worst enemy of life, freedom and the common decencies is total anarchy; their second worst enemy is total efficiency” · Aldous Huxley
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  5. #5
    Platinum Member bdog's Avatar
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    John Deere 4440

    Default Re: Horsepower needed to pull this disc?

    Quote Originally Posted by smstonypoint View Post

    So, what about the Kewanne? It looks like a heavy-duty disc and a disk-harrow to me.

    Steve
    That is what I am wondering. I originally thought the "heavy duty disc" meant an offset disc but I am wondering what this would be classified as.

    If it helps any with the analysis I pulled a 9 shank chisel 10-12" deep through my field with the 90 HP a couple days ago. It was a definite workout for the tractor and there were a few spots where I had to raise it a little bit but the most part it went through.

    Right now I have a Howse 9' 3 pt disc and it does not work good at all. It does not have scrapers and the dirt balls up on the discs which is a pain to remove. It is really not that wet either the last rain we had was two weeks ago and it wasn't even an inch. Before that I don't think it has rained in a month. Aside from the dirt sticking it does not penetrate well even though the field is freshly chiseled. I thought about adding a bunch of weight but I just bought the Howse and the Kewanee is at the same dealer and he said he could work me out a swap of some sort so I have been reluctant to add weight or modify my current disc.
    1980 John Deere 4440 with duals
    2006 John Deere 322 compact track loader

  6. #6
    Elite Member smstonypoint's Avatar
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    NH TN 55, Kubota B2320 & RTV 900, Bad Boy Outlaw 61" ZTR

    Default Re: Horsepower needed to pull this disc?

    Quote Originally Posted by bdog View Post
    I thought about adding a bunch of weight but I just bought the Howse and the Kewanee is at the same dealer and he said he could work me out a swap of some sort so I have been reluctant to add weight or modify my current disc.
    Is there any chance the dealer would let you take a "test drive" with the Kewanee?

    Steve

  7. #7
    Platinum Member bdog's Avatar
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    John Deere 4440

    Default Re: Horsepower needed to pull this disc?

    Quote Originally Posted by smstonypoint View Post
    Is there any chance the dealer would let you take a "test drive" with the Kewanee?

    Steve
    I have not thought of that. He is about 15 miles away. I guess I could take my tractor over there. I am not sure if he has an area I could disc up or if he would let me bring it home to test out on my ground.

    The 15 miles isn't that far to road it. When I bought my tractor it was 110 miles away and the trucking was so high that I decided to drive it home. Took all day but was not really a problem. Cab and AC made it nice.
    1980 John Deere 4440 with duals
    2006 John Deere 322 compact track loader

  8. #8
    Gold Member
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    A little of everything

    Default Re: Horsepower needed to pull this disc?

    To really pull it like it should be, you are going to need 115 to 120 HP. Soil type and conditions are the two big variables. Your tractor should do a decent job with it, but it will know it's back there.

  9. #9
    Platinum Member bdog's Avatar
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    John Deere 4440

    Default Re: Horsepower needed to pull this disc?

    I have only got about 15 acres I want to till. Only problem is right now is the first time it had been plowed in many many years. It was grown up pretty bad. I shredded it and dug some stuff out with my skid steer. I have got everything removed and have chiseled it but there are quite a few uneven spots due to my work with the skid steer. I think a big pull type disc would level it out. My small 3pt rides the contours and doesn't dig in. Also there is quite a bit of residue in the field and the small disc seems to want to stay on top of it in places.
    1980 John Deere 4440 with duals
    2006 John Deere 322 compact track loader

  10. #10
    Bronze Member
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    Arab, AL
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    Kubota M7040 cab

    Default

    We had a very similar disc growing up, a White matter of fact, and pulled it all day every day with a 2WD 105HP White tractor with and without duals, no problems. It actually had 2 ft fold down gangs on the sides and even with them down it still pulled it fine.

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