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  1. #1
    Gold Member Mudfarmer's Avatar
    Join Date
    Dec 2009
    Western Washington
    John Deere 3005, Kubota B7100, Kubota B2710 (Traded in the Ford 1700)

    Default Horsepower for 6 foot Brush hog?

    JD 3005 27 HP, PTo rated 24 HP. I break sheer pins on a four foot 3 point brush mower. I can run a five foot without problems. Looking to buy a new mower. Do I have enough horsepower to move up to a six foot mower?

    JD 3005, Kubota B2710, Kubota B7100, 120 Acres

  2. #2
    Epic Contributor murphy1244's Avatar
    Join Date
    Nov 2011
    Kioti DK-40, MF-135, Ventrac 4500Y

    Default Re: Horsepower for 6 foot Brush hog?

    5 pto hp per foot of blade is what I was told.

  3. #3
    Elite Member
    Join Date
    May 2010
    of my

    Default Re: Horsepower for 6 foot Brush hog?

    I tend to think a 6' is too big for your tractor, unless you'll be cutting pretty light stuff most of the time.

    But ... I'd also check your manual to see if it tells the max weight your 3PH can handle regarding a rotary cutter (a lot of tail weight hanging very far from the 3PH ... even farther with a 6')?

    A 6' rotary cutter is a lot bigger than a 5': Bigger, heavier, longer/ wider ... everything.

  4. #4
    Veteran Member scoutcub's Avatar
    Join Date
    Aug 2008
    Yanmar LX4900//Cub 7532//Cub Yanmar SC2400//Komatsu D38//Cub Volunteer//Cub SZ60/CAT 289C/CAT 308

    Default Re: Horsepower for 6 foot Brush hog?

    I ran a 6' KK Bushhog behind my 28 HP. It would pull it, but was struggling going up the steep hills I have. Ended up bending an upper link on the 3-pt.....just too much weight.
    If it's all flat, light mowing.....find a lighter mower...might be OK. Not a factor for me, I sold my 28 HP will be using more HP for the 6'.

  5. #5
    Gold Member Hollow's Avatar
    Join Date
    Dec 2011
    Tuscumbia, Al
    New Holland TT45A

    Default Re: Horsepower for 6 foot Brush hog?

    If your just pasture topping you should be fine, weight might be the down factor. A pull type would eliminate that problem though.

  6. #6
    Epic Contributor RoyJackson's Avatar
    Join Date
    Nov 2001
    Bethel, Vermont
    John Deere 4520 MFWD, Deere 855D UTV, Z920A Zero Turn Mower and assorted implements

    Default Re: Horsepower for 6 foot Brush hog?

    I had a 790 (same tractor as your 3005). I have a 5' cutter which the tractor ran quite easily.
    However, I don't think a 6' cutter would be a good fit unless you only doing some pasture mowing. If you plan on mowing moderate to heavy brush, I think you'll be disappointed.

    As a few guys wrote, a 6' cutter is heavy! Even a 5' cutter (in my case, a Land Pride weighing about 625-650 lbs) will be quite noticable on a light weight tractor like the 3005 (when raised in transport).
    Roy Jackson

    "There ain't no such thing as a free lunch..."

  7. #7
    Gold Member StanR's Avatar
    Join Date
    Apr 2010
    Houston, TX
    Kubota M7040

    Default Re: Horsepower for 6 foot Brush hog?

    Did anyone say a 5 ft cutter what be a good choice..
    Kubota 2012 M7040 Cab

  8. #8
    Super Star Member LD1's Avatar
    Join Date
    Apr 2008
    Central Ohio
    Kubota MX5100

    Default Re: Horsepower for 6 foot Brush hog?

    I would have to ask why you are breaking shear pins on the 4' cutter??

    Are you trying to mow really heavy stuff?? Starting too hard? Hitting rocks?

    What kind of 4' cutter is it?

    under normal use, your 3005 shouldnt break shear pins on a 4' cutter
    ".........there is only one way to find out."
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  9. #9
    Super Star Member
    Join Date
    Jul 2011
    Yanceyville, North Carolina
    Kubota L4400

    Default Re: Horsepower for 6 foot Brush hog?

    I agree that a six footer would not be the right choice. The 3-point hitch capacity on your model at 24 inches is 815 pounds. - information on all makes and models of tractors Are you having the shear pin problem due to the terrain and height of the vegetation that you are mowing?
    The PUPIL who does not surpass his Master, fails his Master.

  10. #10
    Elite Member jbrumberg's Avatar
    Join Date
    Jan 2006
    Western MA
    New Holland TC29DA, John Deere 455D

    Default Re: Horsepower for 6 foot Brush hog?

    Whatever rotary cutter you decide upon. I would suggest you add a slip clutch if you are breaking that many shearpins.
    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

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