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  1. #1
    Member littlehorsefarm's Avatar
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    Sep 2011
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    Default Yeah you were right ... Herky Jerky 3-point hitch

    I'm going to terrorize the deal on Monday!

    I've got 5 hours on the meter and I've torn up the hitch... well not really but...

    For whatever reason the bars are binding on the backhoe mount right around full lift height ... It doesn't help matters that the lift jerks and shakes the tractor ... I pulled the auger out of a hole and it flopping allover as it came up and out of the hole ... the upper bar on the left side made contact with the backhoe mount... I basically had no control of the speed at which the the hitch lifts... the PTO control valve may as well be an on/off switch.

    The damage does not affect function but the bar has a little tweak to it and the backhoe mount has an area where the metal has been chamfered

    Prior to delivery I had a conversation with the dealer regarding PTO operation and the 3-point hitch jerking issue based on the info I received from this forum. I was assured the hitch would operate smoothly. Guess I am going to take this baby on the road Monday morning.

  2. #2
    Platinum Member BlacknTan's Avatar
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    May 2006
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    855
    Location
    Adirondacks of NY
    Tractor
    Kubota B-7800

    Default Re: Yeah you were right ... Herky Jerky 3-point hitch

    In the course of two days, kubota has had a happy customer and an unhappy one, and all because of the same old problem that has dogged this line for so long..

    I've said it before, and I'll say it again... It is beyond belief that Kubota has allowed this problem to go on for so long, and in the process, turned the 3800, an otherwise nice tractor, into less than it should be..

    I would have traded up to an L-3800 by now were it not for this headache..

  3. #3
    LD1
    LD1 is online now
    Super Member LD1's Avatar
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    Apr 2008
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    9,697
    Location
    Central Ohio
    Tractor
    Kubota l3400

    Default Re: Yeah you were right ... Herky Jerky 3-point hitch

    You'll have to keep us posted o what the dealer says, and if they actually fix the problem, what EXACTALLY they did to it
    ".........there is only one way to find out."
    "Ok, hold my beer and watch this.........."


    Ford 5500 Backhoe
    Kubota L3400GST W/LA463 FEL
    2005 Dodge 3500 4x4 Diesel
    8N Rebuilt and restored
    Bushhog 306
    3 Homemade wood hauling trailers
    Dolmar 6400 84cc ported
    Sachs-Dolmar 120SI Ported
    (4) Sachs-Dolmar 116SI Ported
    Dolmar PS540
    Sachs-Dolmar 115i
    Sachs-Dolmar 117
    Sachs-Dolmar 112

  4. #4
    Super Star Member k0ua's Avatar
    Join Date
    Jun 2009
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    12,786
    Location
    Branson, Mo.
    Tractor
    Kioti DK35se Hydrostat

    Default Re: Yeah you were right ... Herky Jerky 3-point hitch

    Littlehorse here is some "ammunition" for you. showing it can be fixed

    since I posted this there has been a 3rd tractor we know of that has been fixed. The threads are long, but you may be able to use the you tube vids as evidence:


    This after the repair of tractor 1

    Hitch - YouTube

    and this one with auger on back after the repair of tractor 1

    kubota L3800 jerky 3 point hitch fixed - YouTube


    This one is of tractor 2 after the repair, it is much improved and it is a
    L3700SU. he can make it jerk a little, by going painfully slow, but
    it is way better than most stock units.

    L3700SU Jerky Hitch After Dealer Repair - YouTube


    L3700SU Hitch After Dealer Repair Showing Rear Scraper Blade Performance - YouTube





    This video is of tractor 3 an 2009 L3400DT, that is unmodified. While this is not my tractor
    mine is exactly like this video.

    http://www.youtube.com/watch?v=uceJXZaUnMo

    see the difference? boom pole operation impossible, grader blade and box blade
    operation is doable just gotta "overshoot" and feather down to where you
    want it.

    Here is a link to one of the many threads on TBN about this problem

    http://www.tractorbynet.com/forums/k...ting-piss.html




    Hope this helps

    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


  5. #5
    Member littlehorsefarm's Avatar
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    Default Re: Yeah you were right ... Herky Jerky 3-point hitch

    UPDATE:

    I have 10 hours on the new L3800. I switched out the auger for the box scraper.

    I'm sure you'll find this odd but the hydraulics work just fine. I did not touch the adjustment under the seat. I went to work cutting the rest of the driveway ... back and forth, up and down ... I was at it for about an hour and then realized "hey this thing is operating smoothly" ...

    Not sure what to think. I've got some grading work to do this week and then will be switching back to the auger. I am going to skip the visit to the dealer as I am well aware if the problem is not reproducible nothing will be repaired.

    Hope everyone had a great weekend!

  6. #6
    Member littlehorsefarm's Avatar
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    Default Re: Yeah you were right ... Herky Jerky 3-point hitch

    Quote Originally Posted by k0ua View Post
    Littlehorse here is some "ammunition" for you. showing it can be fixed


    This video is of tractor 3 an 2009 L3400DT, that is unmodified. While this is not my tractor
    mine is exactly like this video.

    http://www.youtube.com/watch?v=uceJXZaUnMo

    Hope this helps

    James K0UA

    I watched the video posted above ... this is exactly what my tractor was doing with the auger attached. I was actually a little more violent ... perhaps because I was working the controls quickly?

    I any event this was my initial experience from .5 hours

  7. #7
    Bronze Member
    Join Date
    Jun 2011
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    58
    Location
    Ohio
    Tractor
    2010 Kubota L3700su

    Default Re: Yeah you were right ... Herky Jerky 3-point hitch

    For me, before the repair work.

    Down was never any problem, this can be adjusted fast or slow by the rate knob.
    Up in one moderately quick movement with the lever, usually was not too bad, the implement would raise by usually a large amount. Fine for just up/down work.
    Up in small increments or slowly raising is where it gets terrible shakes. Trying to raise the PHD slowly or raise a box blade by 1/2 inch you'll get some bad jerking.

    Light(er) implements tend to exacerbate the issue because they don't have the weight to provide any damping.

    I like the tractor otherwise. And after dealer worked on it, I am much happier with the tractor. This whole issue defies logic for me.

  8. #8
    Super Star Member k0ua's Avatar
    Join Date
    Jun 2009
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    12,786
    Location
    Branson, Mo.
    Tractor
    Kioti DK35se Hydrostat

    Default Re: Yeah you were right ... Herky Jerky 3-point hitch

    Quote Originally Posted by littlehorsefarm View Post
    I watched the video posted above ... this is exactly what my tractor was doing with the auger attached. I was actually a little more violent ... perhaps because I was working the controls quickly?

    I any event this was my initial experience from .5 hours

    As stated previously, it is when you move the position control slowly up that the violent jerking occurs. Down is silky smooth, and up quickly, no problem, Just Up slowly is jerky-city.

    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


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