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  1. #1
    New Member
    Join Date
    Jun 2010
    kubota 2710

    Default Homemade grooming mower

    While recouping from TKR (total knee replacement) surgery, it has given me time to think of new projects for my B2710. Already have front grapple plans for the FEL in the works and parts ordered. Now I'm thinking of a finishing mower. I have 2 Craftsman tractors with good 48" mowers under them. My neighbor forgets to put oil in them and wonders why they stop with a "THUNK". He gives them to me for "parts". Anyway, I would wondering, why couldn't I build a 7-1/2' finishing mower to pull behind the 2710? Building the frame for the 3-point hitch would be a breeze as would mating the two mowers together. I would off-set one mower 6" off the other to prevent center "miss cut". I'd love to use one or two hydraulic drive unit(s) (utilizing the tractor hydaulics) to power the two decks belt drive system. I think it would be easier to rigg up a pully/drive belt system with a hydraulic motor than to come up with driveshaft/gearbox setup.

    I guess one of the big issues would be if they make a hydraulic drive unit strong enough to drive the decks and would the tractor hyraulics be powerful enough to turn the motors.

    Anyway, I thought I'd throw the idea out for any comments/suggests/recommendations/etc from all the tractor guru's out yonder.


  2. #2
    Padawan Tractor Learner
    Johndeere3720's Avatar
    Join Date
    Mar 2009
    NW Oregon
    Deere 317 & L118

    Default Re: Homemade grooming mower

    Actually, if you used a gear box you could take the belts off and add gears and a chain that link to the gear box. Add a sheild over top of the gears and chain for safety and paint er' bota orange.
    My Fleet:
    2004 Deere 317 Skid Steer Loader
    66" Construction bucket, imatch QA adapter, Bobcat landplane ,4 in 1 bucket, Pallet forks
    2005 John Deere L118
    42" deck, bagger

  3. #3
    Elite Member zzvyb6's Avatar
    Join Date
    Dec 2006
    jd 1070

    Default Re: Homemade grooming mower

    Some of the fellows on the Forum use a rule of 5hp per ft of mower (hope I'm not mistaken on the rule or the application). If that's the case, then you are a bit underpowered, under flow capacity AND subject to some serious oil overheating issues even if the hydraulic motors are super high efficiency and you add a cooler and big reservoir. If you could get a batwing gearbox and another mower deck, what about creating a triplex mower with 11 ft of cut? You still have to drive the individual decks with a 540 or 1000 rpm gearbox, but that's just cost. The rest is welding and drilling some holes. It would be best if the mowers are already pto shaft driven instead of belt driven, because you can turn them 90 degrees, but those are just details.

    I'm presuming that your tractor could struggle with the mechanical drive better than with the use of a hydraulic drive. I'd hook a 72" or 84" rear mower on the thing and go to town on the grass. My own rule, based on my own equipment, is a bit less power per foot. Keep the blades sharp and the grass height down and you can handle it.
    There is no "I" in team, but there is a "Me" if you want to jumble it up a bit...

  4. #4
    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: Homemade grooming mower

    Quote Originally Posted by zzvyb6 View Post
    Some of the fellows on the Forum use a rule of 5hp per ft of mower (hope I'm not mistaken on the rule or the application).
    That "rule of thumb" normally refers to rotary cutters which require more PTO HP then a same width grooming mower.

    I think Johndeere3720's idea about a gearbox with chains linking the two decks' drives would be the easiest and maybe the least expensive. I'd guess the gearbox itself would be the major expense (other then copndoc3's time).
    Roy Jackson

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

  5. #5
    Silver Member
    Join Date
    Mar 2008
    Canaan, NH
    Kubota L2850

    Default Re: Homemade grooming mower

    I find it hard to believe you cant find a decent used mower for your machine that is ready to go for similar $,

    THat said, you could also use a PTO powered pump to run your hydraulic motors and I bet that pump would become useful for other things in the future if you like to make things.

    Good luck with your knee, my Mom had both of hers done a few years back and loves it.

    34 horse Kubota L2850, JD 690B excavator,
    52 GMC Dump Truck, Turner Bandmill

  6. #6
    Elite Member sandman2234's Avatar
    Join Date
    Dec 2005
    Jacksonville, Florida
    JD2555 and a few Allis Chalmers and now one Kubota

    Default Re: Homemade grooming mower

    I had a job that I wanted to lessen the seat time on, so I started building a 7'6" mower to pull behind my Ford tractor. The thing that deflated it was the one I hadn't considered, which was weight.After I built the deck, I put the motor, gas tank and everything on the deck and hooked it up. It was just a little too much for the 13 hp subcompact, so the project got moved to the corner of the yard.Electrian giving me a quote spotted it and paid me to finish it, plus trading out the electrical job. I removed the gas motor, tank, etc and installed a right angle gearbox to drive the pullies via "B" belts. New owner was happy and got years of service, I was told. I would look at swisher mowers as a guide for putting your two decks together. David from jax
    A serious accident is one that money won't fix.

  7. #7
    Veteran Member CCWKen's Avatar
    Join Date
    Mar 2005
    South Texas, USA
    Ford-3910, JD-420C, Kenbota-Custom, IH-2606

    Default Re: Homemade grooming mower

    You'd have to design in a way to keep the blade tip speed up. For the best cut, you need around 14,000fpm. Many of the commercial mowers have tip speeds of around 18,000fpm. The pto is only 540rpm so you'd need to gear it up and in the process, loose torque. Most lawnmower engines run at 3000-3200 rpm for the needed tip speed. Running chain drive that fast might be a little dangerous. Not to mention high maintenance.

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