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  1. #11
    Elite Member Chilly807's Avatar
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    Sep 2009
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    3,239
    Location
    Nova Scotia
    Tractor
    Kubota L3400DT

    Default Re: MX5100 Jerky 3pt hitch

    Yeah, pretty much what James said.. I spent a few weeks last winter working on mine. I initially cured the jerky upward motion by adjusting the valve to the specs in the service manual, but the side effects (implement settling/dropping a couple of inches when aux. hydraulics were used) were bad enough that I set it back to the original setting and have lived with it. I think SMweatherman had the same results with his dealer prior to installing the flow control valve.
    If you think it's going to p*** you off long term, now's the time to act. Return the dam* thing while you still can, and tell them exactly why. Just thinking about it raises my blood pressure!!

    Sean

  2. #12
    Super Star Member LD1's Avatar
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    Apr 2008
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    11,895
    Location
    Central Ohio
    Tractor
    Kubota l3400

    Default Re: MX5100 Jerky 3pt hitch

    Quote Originally Posted by Chilly807 View Post
    Just thinking about it raises my blood pressure!!

    Sean


    Ditto what James and Sean said.

    I have learned to just live with it, cause they are great tractor otherwise. But as Sean said, NOW is the time to act if you think you cannot live with it. Cause 5 years down the road, if you are unhappy still, its going to cost you a lot more then to trade up or trade out of that machine. But first I would get with the dealer. Some have been able to be fixed. Others not. Give them a chance. If they cant fix it, ditch it or live with it....your choice.
    ".........there is only one way to find out."
    "Ok, hold my beer and watch this.........."


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  3. #13
    Silver Member 3boys865's Avatar
    Join Date
    May 2012
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    103
    Location
    East Tennessee
    Tractor
    Kubota L4240HST

    Default Re: MX5100 Jerky 3pt hitch

    Thanks for the input everyone. My dealer has been great and tried to fix the problem once already, but did not have much success. I really like the tractor otherwise, it it a great combination of power and size and is perfect for the grapple work I do. However, it is very difficult to spread gravel or dirt when grading because I can't feather up the box blade. I need to be able to maintain a 1000ft gravel driveway, so that was one of the reasons I needed the tractor.

    It appears from the responses I have got that this is not a problem on every MX5100, some are smooth operating and some are not. My dealer has agreed to let me return the tractor and purchase another replacement. I could also let them try to fix it, but based on the stories I have seen here, the fix is not simple and not something that is guaranteed to work.

    I would like to have the MX5100, but with a smooth 3pt hitch. What do you think the chances are of me getting another MX5100 with a smooth hitch? Or, should I look at investing in another model with the dual external cylinders like a M5140? I haven't seen any reports of jerky 3pt hitches from the M series or Grand L tractors.

    All thoughts and opinions are welcome...

  4. #14
    Silver Member
    Join Date
    Jun 2012
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    128
    Location
    Evergreen CO
    Tractor
    Ford 8N, Kubota L4240

    Default Re: MX5100 Jerky 3pt hitch

    I ran into the problem with a new L4600. My dealer brought the district service rep from kubota to look at it. Even with loaded tires and a modest load on the 3pt hitch the tractor hopped about. The service rep said he thought there was about one chance in ten of getting it fixed. I traded for an L4240. My advice would be to go for another MX series only if it is on a dealer's lot and you can test the lift before purchase. Good luck, and let us know how you make out.

  5. #15
    Silver Member 3boys865's Avatar
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    May 2012
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    103
    Location
    East Tennessee
    Tractor
    Kubota L4240HST

    Default Re: MX5100 Jerky 3pt hitch

    Quote Originally Posted by pmhowe View Post
    I ran into the problem with a new L4600. My dealer brought the district service rep from kubota to look at it. Even with loaded tires and a modest load on the 3pt hitch the tractor hopped about. The service rep said he thought there was about one chance in ten of getting it fixed. I traded for an L4240. My advice would be to go for another MX series only if it is on a dealer's lot and you can test the lift before purchase. Good luck, and let us know how you make out.
    I was also considering returning it for a L4240. How does the 3pt hitch operation compare? Is it smooth and can you easily feather up on it with a box blade? I test drove one before I bought the MX and really liked it. Only reservation I have about trading the MX for it is dropping the 8 hp. I think the loader is comparable and the 3pt capacity is actually higher though.

    Overall are you happy with the move you made?

  6. #16
    Super Star Member k0ua's Avatar
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    Jun 2009
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    17,734
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    Branson, Mo.
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    Kioti DK35se Hydrostat

    Default Re: MX5100 Jerky 3pt hitch

    I have not heard of any complaints about any of the grand L series of tractors ref the 3pt hitch.. Of course they are quite a bit more money, But they do offer some others advanced features, notably an advanced Hydrostatic transmission, that the owners all seem to really love when they figure it out. There are several other comfort and convenience features as well. I cannot for the life of me explain why some owners of the newer L series report no problems with their 3pt, and others (and my own experience) certainly do/did. Also the fact that not very many have reported a suitable "fix" is also somewhat unexplained in my mind. I can only relate my own experience. Good luck.

    James K0UA
    James KUA

    Kioti DK35se hydrostat with 2 QA buckets, 48 inch. King Kutter Rotary Cutter. 750 lbs ballast box. Loaded tires, Construction Attachments SSQA Lightweight Pallet forks. EA 50 inch single lid "wicked" Grapple. Satisfied Everlast PA160 welder owner How to add a link to a post . Best way to search TBN


  7. #17
    Silver Member 3boys865's Avatar
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    May 2012
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    103
    Location
    East Tennessee
    Tractor
    Kubota L4240HST

    Default Re: MX5100 Jerky 3pt hitch

    Quote Originally Posted by k0ua View Post
    I cannot for the life of me explain why some owners of the newer L series report no problems with their 3pt, and others (and my own experience) certainly do/did. Also the fact that not very many have reported a suitable "fix" is also somewhat unexplained in my mind. I can only relate my own experience. Good luck.

    James K0UA
    I can't explain it either....if it was a faulty design, seems like all the MX / L's would have the same problem. If it was faulty parts or workmanship, it would seem that replacing parts or identifying a fix would be possible. Only solutions I have seen are more of a work around instead of an actual identification of the problem and definitive fix. Hard to explain for a company like kubota

  8. #18
    Elite Member Chilly807's Avatar
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    Nova Scotia
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    Kubota L3400DT

    Default Re: MX5100 Jerky 3pt hitch

    Quote Originally Posted by 3boys865 View Post
    I can't explain it either....if it was a faulty design, seems like all the MX / L's would have the same problem. If it was faulty parts or workmanship, it would seem that replacing parts or identifying a fix would be possible. Only solutions I have seen are more of a work around instead of an actual identification of the problem and definitive fix. Hard to explain for a company like kubota
    And that is the part that ticks me off the worst..

    Anyway, like pmhowe said, I'd only get another MX5100 if you can try it first. Interesting odds, 1 in 10. Not something I'd bet $20K ++ on. No point in ordering one if it might be the same problem in my opinion.

    I'm guessing they haven't given you the option to simply return your money, only the "buy a different Kubota tractor" avenue? At the risk of sounding like a conspiracy theorist, which I'm really not, it's like they're luring us in with the "cheap" tractors. Then when we discover there's a problem, the only way out is to spend more money on an upgrade. I'm not suggesting you do this, but I'd be interested to see what a good lawyer (is there such a thing?) could do with that in court.

    Ok, enough spite from me.. if there's an explanation as to why some are better than others, I think a lot of it is the owner's expectations. What I consider jerky another owner might be happy with. Have you seen the Youtube videos I posted of mine?

    I think some of the problem with them is the amount of free play/lost motion in the valve linkage under the transmission cover. If it was a simple hydraulic valve with no position control I think it'd be fine, but there is enough slop in the linkages that the 3pt can move quite a bit before the feedback linkage closes the valve again. I thought briefly about trying to spring load the linkage inside the tranny, but I had visions of a spring getting loose among the gears and decided it wasn't worth the risk.

    You can probably smooth it out quite a bit by adding a flow control valve to the mix for about $100, like smweatherman did. They're on sale this week locally, it reminded me of this whole thing again.

    Like the guys have said, I've not heard of any of the Grand L's having this problem to any degree at all. Good luck and keep us posted!

    Sean

  9. #19
    Veteran Member scesnick's Avatar
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    Sep 2004
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    1,439
    Location
    Garrett County Md. ( Western Md.)
    Tractor
    Kubota MX5100

    Default Re: MX5100 Jerky 3pt hitch

    I have 280 hours on mine and it is also fine.
    Father, GNCC racer, KTM rider, Bow hunter, Farm owner.
    Kubota MX5100
    Dodge 2500 CTD
    Yamaha YZ 250

  10. #20
    Gold Member Herkypilot's Avatar
    Join Date
    Oct 2011
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    395
    Location
    Concord, NC
    Tractor
    Kubota MX5100 DT 4x4 & L3540 HST

    Default Re: MX5100 Jerky 3pt hitch

    Quote Originally Posted by scesnick View Post
    I have 280 hours on mine and it is also fine.
    My understanding is it's not a problem that develops over time. Your tractor either has the problem from the factory or doesn't.

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