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  1. #1
    New Member
    Join Date
    Aug 2013
    Knoxville, TN
    Kubota M5040

    Default Need help with rotary cutter choice

    I own a 4WD kubota M5040 which has 46 PTO HP and max lifting of 1200 lbs. I am purchasing a Bush Hog Rotary Cutter BH26 which requires a minimum 45 PTO HP and weighs 1095 pounds. Am I cutting it too close? I don't want to damage or bog down the tractor, but I have hills with small cedars that get in my way, so I need something sturdy enough to handle them. Thanks.

  2. #2
    Super Star Member TripleR's Avatar
    Join Date
    Mar 2009
    Kubota M8540HDC, L5740HSTC, BX2200, BX2660, John Deere 425&1025R, Case, Massey Ferguson, Ford

    Default Re: Need help with rotary cutter choice

    I wouldn't worry about it, I used a Land Pride RCR2672 weighing 1046 pounds with my L5030 and it's a lot lighter tractor than yours. I also use a Land Pride HR3584 box scraper on my L5740 weighing well over 1100 pounds and it handles it fine.

  3. #3
    Elite Member rbargeron's Avatar
    Join Date
    May 2000
    L5450, L48, L3250, L345

    Default Re: Need help with rotary cutter choice

    Quote Originally Posted by Deb3 View Post
    ...... Am I cutting it too close? I don't want to damage or bog down the tractor......
    You're not cutting it too close - the power guidelines are only approximate and the 3 pt lift rating has some tolerance too. You'll be fine with that setup.
    L345, L3250, L48, L5450, never enough attachments

  4. #4
    Super Star Member LD1's Avatar
    Join Date
    Apr 2008
    Central Ohio
    Kubota MX5100

    Default Re: Need help with rotary cutter choice

    Where are you getting that 1200# max lifting number???

    Your 3PH will lift 3300 lbs @ 24" and your FEL will lift ~2400 lbs.

    Heck, my little L3800 will lift more than 1200 on the 3PH
    ".........there is only one way to find out."
    "Ok, hold my beer and watch this.........."

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  5. #5
    Elite Member Ken45101's Avatar
    Join Date
    Feb 2009
    southern Ohio
    Kubota M5040, M9540, B21 TLB, B2710, RTV900, JD 325 Skid steer, KX-121-3 mini excavator

    Default Re: Need help with rotary cutter choice

    I run a 6' medium duty cutter on a M5040 and have no problems. As pointed out, the 3pt lift is over 3000#. For the width of the 5040, a 6' cutter is a good match. If you don't have a FEL, you will need front weights probably.

    I originally ran that same cutter on a M4700, slightly less pto hp but never had any problems.

    When you get into heavy stuff, you'll want to run in first gear anyway and you'll have plenty of horsepower. Normally I run in third gear when mowing except for very thick grass and weeds.

    The rule of thumb is a minimum of 5 hp per foot of cutter. You have 7.5 hp so you're doing fine.

  6. #6
    Gold Member
    Join Date
    Dec 2012
    Grand Lake OK
    Kubota L4600

    Default Re: Need help with rotary cutter choice

    I have a kubota L4600 which specs just a little weaker than your tractor. I have a Woods brush bull 72 that looks close to your rotary cutter, and I love mine almost a perfect match. Mine gets a little heavy if I need to keep the tail wheel up for some reason, but that doesn't happen very often.

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