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  1. #1
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    Jan 2006
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    Default Help needed for selecting right size tiller

    I am planning to purchase a KK rotary tiller, but not sure which size to get. I have a Kubota L4400 which has 37.5 PTO h.p. and the manual recommends a 5' tiller with a max weight of 770 lbs.

    The KK 60" is 690 lbs. and rated for 25-40 PTO HP and the 72" is 780 lbs. and rated for 35-50 PTO HP.

    I use a Pat's easy change hitch which adds some length to the 3 pt. so I am concerned about the max weight, but with a 72" tire width, I really would like the 72" tiller.

    Not being that experienced, what would you all recommend? Thanks.

  2. #2
    Elite Member JC-jetro's Avatar
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    Jul 2006
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    3,198
    Location
    Kansas
    Tractor
    Ford 1700, Kubota MX-4700

    Default Re: Help needed for selecting right size tiller

    Quote Originally Posted by Mofan
    I am planning to purchase a KK rotary tiller, but not sure which size to get. I have a Kubota L4400 which has 37.5 PTO h.p. and the manual recommends a 5' tiller with a max weight of 770 lbs.

    The KK 60" is 690 lbs. and rated for 25-40 PTO HP and the 72" is 780 lbs. and rated for 35-50 PTO HP.

    I use a Pat's easy change hitch which adds some length to the 3 pt. so I am concerned about the max weight, but with a 72" tire width, I really would like the 72" tiller.

    Not being that experienced, what would you all recommend? Thanks.
    I use 5' wide KK tiller with my 2400 lbs 25 hp PTO wit no problems at all. My soil condition is good without much heavy clay, rocks or roots where I garden. It is really advantageous to cover your track with the width of the tiller. Kubota L400 at about say 3500 lbs and 37 rated PTO is very easily more than capable of handling a 6 foot considering your soil condition. I certainly go for the 6 footer to cover L4400 track. Should you ever need down the road to till less wider than 6' wide , then just simply take off one or two rows of the tines. You can till a 5 foot wide row and have some spare tines also.

    JC,
    Ford 1700, 2wd.
    Kubota MX-4700DT, Gear transmission with LA 884 loader, Q/A and HD bucket.
    60" Woods Rotary Cutter, home made (3-pt boom and a Row Hipper) ,King Kutter( 5 ft Tiller,Middle Buster,Single Row Cultivator,Carry-all, 5 ft blade, 6 ft Landscaping Rake ,30" Dirt Scoop and a 4'x4' Drag Harrow)

  3. #3
    Veteran Member Mickey_Fx's Avatar
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    Aug 2005
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    1,132
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    Vancouver Wa.
    Tractor
    Yanmar Fx24D, Cub 3204

    Default Re: Help needed for selecting right size tiller

    Not sure what the basis for the 770# limit is. Could be 3pt capacity or a handling issue, light front end due to weight transfer. I'd try and get an understanding what determine the rating. Yep, you should use a tiller that covers the full width or can be mounted offset so at least one tire footprint gets worked up as the tiller passes.
    Yanmar Fx24D,
    Koyker 155 loader,
    RSB-1300 tiller
    Cub 3204, 48" mower
    Bolen 1257 GT with tiller

  4. #4
    Gold Member
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    Aug 2003
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    438
    Location
    Adna, WA
    Tractor
    kubota

    Default Re: Help needed for selecting right size tiller

    I have been using a 6' Kuhn and have had no problems, are you sure about the #770 pounds? Your 3-point should be upwards of a few thousand pounds.

    steve
    Kubota L3430HST with 723 loader and 6'bucket, Greenline 6", 9" & 12" post hole digger, Land Pride 5' Brush hog, toothbar, 72" land Pride box blade, canopy, Kuhn 6' rototiller, 8' landscape rake, post driver, WOODS BH90x with hydraulic thrumb.

  5. #5
    Elite Member ToadHill's Avatar
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    Oct 2005
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    Catt county New York
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    Kioti DK35, Ford 8N, Oliver Cletrac

    Default Re: Help needed for selecting right size tiller

    I didn't worry much about weight just the read tire width, I got one that was wider than the tires by a couple inches.
    I can't control my day but I can control my attitude.

  6. #6
    Veteran Member jbrumberg's Avatar
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    Jan 2006
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    Western MA
    Tractor
    New Holland TC29DA, John Deere 455D

    Default Re: Help needed for selecting right size tiller

    Mofan:

    Welcome to TBN ! Your L4400 should be able to handle a KKII 72" tiller. Your 3PH lift capacity at 2' beyond lift point is approximately 2310 pounds according to kubota literature, and you have the PTO HP to power that size tiller. You definitely want a tiller that is wider than your wheel width. Jay
    NH TC29DA with 14LA and HD QA 60" bucket, weighted R-1's, FOPS, CCM M-160 (58") Tiller, Tebben MD 60" Rotary Cutter, Woods LR 108 (96") Landscape Rake, FEL cutting edge and tooth bar, Woods GB60 (60") Box Blade, Wallenstein BXM32

    1995 John Deere 455 Diesel with 48" mower, MC 519 Cart with PowerVac

  7. #7
    Bronze Member
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    Jan 2008
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    81
    Location
    Oregon
    Tractor
    New Holland TN65

    Default Re: Help needed for selecting right size tiller

    We have a JD 3720 with a JD 72" tiller. The tractor is at 35 pto hp and we have never needed more power. The only time that the tractors RPM may dip a little is when we do a second pass through the garden at 8" deep.

    Dan
    NH 03 TN65,

  8. #8
    Gold Member
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    Jan 2007
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    322

    Default Re: Help needed for selecting right size tiller

    It doesn't need to cover your tire track, if it is an offset, slider. You can get the 5 foot model of one of these, and never have to worry about it needing more HP than you have. By having it offset, all you need to cover is one tire track.

  9. #9
    Silver Member Foozle's Avatar
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    Apr 2008
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    112
    Location
    Pelzer, SC
    Tractor
    Kubota L5740

    Default Re: Help needed for selecting right size tiller

    Quote Originally Posted by diyDave
    It doesn't need to cover your tire track, if it is an offset, slider. You can get the 5 foot model of one of these, and never have to worry about it needing more HP than you have. By having it offset, all you need to cover is one tire track.
    I'm considering tillers at the moment as well and have a question about the offset type. Doesn't this limit flexibility in how you can till a smaller, rectangular shaped garden (like 1 acre or so)? It seems you'd have to till the same direction in order for the offset to work. Or, till the opposite direction but at opposite sides of the garden, working your way to the center -- which would be ok until you got to the center of the garden and would be left with a tread mark. Am I missing something here?

    Thanks

  10. #10
    Platinum Member xlr82v2's Avatar
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    Southwestern Illinois
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    2007 Mahindra 3525, 1952 Ford 8N

    Default Re: Help needed for selecting right size tiller

    Nope, you're not missing a thing.

    The small offset tillers are good for small gardens, where you can just till in successive passes in one direction... but if you're working a larger plot (like a 1 acre "garden" (that's quite a large garden!!) you would waste a lot of time deadheading back to the other end of the garden to start your next pass. Not un-doable, but not a very efficient use of time.

    Covering BOTH tracks is always better than covering just one, unless you just don't have the horsepower to do it... which I think would be a really rare occasion.

    I'm running a 72" KK tiller on my 27 PTO HP Mahindra 3525, and it handles it just fine... Mofan has 10 more hp than I do, so he should have absolutely no problem at all with the 6 footer.
    http://www.tractorbynet.com/forums/a...ed-up-new.html
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    Brian

    2007 Mahindra 3525
    1952 Ford 8N

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