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  1. #121
    Elite Member Chilly807's Avatar
    Join Date
    Sep 2009
    Posts
    3,167
    Location
    Nova Scotia
    Tractor
    Kubota L3400DT

    Default Re: MX5100 Jerky 3pt hitch

    Great pics, and a nice looking install too.. I think the same valve (different brand name) is what Jeff used on his. He is in Canada, as am I, and I think he sourced his from Princess Auto. They were on sale a few months ago for about $100. They sell either a PC or a plain version of the valve for a few bucks in the difference.

    Thanks,

    Sean

  2. #122
    Bronze Member
    Join Date
    Nov 2011
    Posts
    54
    Location
    Indiana
    Tractor
    Kubota MX4700HST

    Default Re: MX5100 Jerky 3pt hitch

    Quote Originally Posted by paulwestski View Post
    thanks smweatherman
    Do you have a backhoe on the tractor?
    No backhoe and I do not know from where the backhoe gets its fluid or how it would be affected. The good news I guess is that if the backhoe does get fluid from the PB port one could always 'dial in' max fluid on the flow control valve if needed.

    I just didn't think a video would be very telling with an empty hitch. As soon as I put some ballast or the rotary mower back on I will get some video.

    Chilly807

    Re: MX5100 Jerky 3pt hitch
    Great pics, and a nice looking install too.. I think the same valve (different brand name) is what Jeff used on his. He is in Canada, as am I, and I think he sourced his from Princess Auto. They were on sale a few months ago for about $100. They sell either a PC or a plain version of the valve for a few bucks in the difference.

    Thanks,

    Sean
    Thanks. Yes, I fully admitted I stole practically everything from Jeff's earlier Home Brew write-up. I learned a lot along the way as well. I think I paid about $90 (US) for the valve and 60 or 70 for the fittings and hoses. I sourced everything but the valve from my kubota dealer (after trying to fix the jerkiness they were fully aware of what I was doing and why.)

  3. #123
    Bronze Member
    Join Date
    Nov 2011
    Posts
    54
    Location
    Indiana
    Tractor
    Kubota MX4700HST

    Default Re: MX5100 Jerky 3pt hitch

    I hope those interested are subscribed to this thread. I was awfully slow about getting some video; 3 inches of rain yesterday cancelled a lot of other plans.
    In the video you should see that I attempted three trials: one with the flow control at '10', which should be just like factory; one with the flow control at about 3.5, about where I often run it; and a third with the flow control set at 2, which is very slow but might be useful in some applications. For each trial I tried to make two 'lifts' at full speed, moving the 3pt control lever from full down to full up in about 1 second. I then tried to make two lifts at a more controlled rate, moving the 3pt control lever from full down to full up as smoothly as I could in about 5-6 seconds. After that I did a lift in increments were I would move the control lever one or two numbers on the scale, rest, and then do it again.
    You can see me adjust the flow control valve in between trials.
    My memory card filled up before I was done with the third (slowest) trial, but I think you can see it is very smooth and very slow.
    My ballast weight is about 1200lbs and I was running about 1700 rpm for whatever that is worth.
    Remember, the loader function is not affected at all. The rear remote volume (speed) is affected along with the 3pt.


    Good luck

  4. #124
    Platinum Member KYDan's Avatar
    Join Date
    Sep 2011
    Posts
    690
    Location
    Frankfort, KY
    Tractor
    Kubota MX5100 HST 4WD

    Default Re: MX5100 Jerky 3pt hitch

    Thanks, with my factory only hitch and a 610 box blade on I have a very minimal jerkiness. I guess I am one of the lucky ones as I have not experienced the jerky hitch issue as pronounced as most seem to be.

  5. #125
    Platinum Member
    Join Date
    Apr 2012
    Posts
    743
    Location
    pa
    Tractor
    kubota 7040sud

    Default Re: MX5100 Jerky 3pt hitch

    you think someone would come up with a fix for the problem

  6. #126
    Super Star Member k0ua's Avatar
    Join Date
    Jun 2009
    Posts
    12,772
    Location
    Branson, Mo.
    Tractor
    Kioti DK35se Hydrostat

    Default Re: MX5100 Jerky 3pt hitch

    Good Video and Good Job!.. But I would like to point out your "worst case" jerky with the valve wide open, could not hold a candle to the Jerky I had with my L3400. I wondered if the tires were going to stay on the ground some times with mine..You have definitely made some improvements. and the 3.5 setting is very livable. I did much the same experiment with my L3400, by raising the FEL at the same time as I raised the 3pt which greatly reduced the flow to the 3pt and achieved approximately the same results, of course totally impractical results in my case.. So I knew it could be done. Thanks for posting this up.

    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. #127
    Elite Member Chilly807's Avatar
    Join Date
    Sep 2009
    Posts
    3,167
    Location
    Nova Scotia
    Tractor
    Kubota L3400DT

    Default Re: MX5100 Jerky 3pt hitch

    Hmm.. now I want to add the flow control to mine! It wouldn't be something I'd use often, mostly just for smooth grading the driveway or earth work. Looks like a great solution to a pesky problem. Nice job!

    Sean

  8. #128
    Gold Member
    Join Date
    Apr 2012
    Posts
    443
    Location
    Southwest VA
    Tractor
    Kubota L2600 DT Kubota 900 RTV Kubota MX5100

    Default Re: MX5100 Jerky 3pt hitch

    Quote Originally Posted by 3boys865 View Post
    Dealer prep or other adjustments will not make the hitch smooth. It is not designed to be smooth. The response I got from my regional kubota rep was that the value tractors (Standard L's and MX's) are not engineered to have a smooth hitch. If you want or need a smooth operating hitch, you will need to purchase a Grand L or M series Kubota.

    I can't say anything bad about the MX5100 otherwise. It provides a lot of tractor and power for the money, just depends on what you are looking to use the tractor for. If you plan to do any grading, use a PHD or any other implement that would require fine control over the 3PH, then you will not be happy with the 3PH performance. If not, you will not even notice the jerky hitch. It is smooth when raising quickly, just can't feather it up smoothly.

    I returned my MX5100 after 2 weeks and purchased a Grand L 4240 because I needed a smooth hitch for grading. Couldn't be happier, it was the right decision for me. If you will mainly be doing PTO or FEL work then the MX5100 is a great choice.

    Hope that helps...
    My MX5100 works like a charm, very smooth control, and great for grading with my 6' blade. Guess I'm lucky. I love this tractor and can't recommend it enough.

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