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  1. #1
    New Member
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    Mar 2011
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    West Chester PA

    Default L3800 3pt hitch operation

    Hi all - new member here. I have read numerous articles re the jerky 3pt hitch issue with the L3400 models. I am ready to purchase a new L3800 but wanted feedback from anyone that owns an L3800 regarding the 3pt operation. Does the new 3200/3800 have the same issue ?

    Thanks in advance

  2. #2
    Elite Member teg's Avatar
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    Jul 2005
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    4,010
    Location
    Raleigh, NC Hillsville, VA
    Tractor
    L2800.

    Default Re: L3800 3pt hitch operation

    The first generation of L2800 and L3400 were really bad... kubota changed the valves and there were less jerky (livable). kubota has not change the valves with the updated L3200 and L3800 (L3700, too). Try it out for yourself... if you are not planning to use a boom pole or do fine grading, it should be fine. The problem is if you raise the 3ph very slowly...

  3. #3
    Super Star Member k0ua's Avatar
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    Jun 2009
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    15,300
    Location
    Branson, Mo.
    Tractor
    Kioti DK35se Hydrostat

    Default Re: L3800 3pt hitch operation

    Also you will not be able to tell much if the tractor does not have an implement on the 3ph. just a bare tractor will not prove much. I have a 2010 L3400, and the 3pt hitch is jerky if you try to raise it slowly. If you just move the lever smartly up. there will be one "jerk" at the end of movement. But if you try to raise the lever slowly the 3pt. will be a series of jerky raising movements. Of course lowering the 3pt, it is silky smooth. Not a problem for the things I do., but I can see how lifting a motor with a boom pole, would be an issue.

    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


  4. #4
    Gold Member JakeBrake's Avatar
    Join Date
    Apr 2006
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    256
    Location
    Central Mississippi
    Tractor
    Kubota L3830

    Default Re: L3800 3pt hitch operation

    The 3pt hitch on my 2005 L3830 is as slick as anything you could ask for. Up or down. Fast or slow. Of course if you are too fast, it will operate at its own speed.

  5. #5
    Gold Member Mike_Kanzer's Avatar
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    Jul 2005
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    286
    Location
    Chester county, PA
    Tractor
    Kubota L3830 HST, JD Gator 855D

    Default Re: L3800 3pt hitch operation

    I agree with the others. HAve the dealer put something heavy on it ( like a rotary mower) and try it out for your self to see what it is like. My L3830 also has a smooth 3 pt. - the grand L series never had the problem the regular L series had. - Mike

  6. #6
    Elite Member Chilly807's Avatar
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    Sep 2009
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    3,217
    Location
    Nova Scotia
    Tractor
    Kubota L3400DT

    Default Re: L3800 3pt hitch operation

    Quote Originally Posted by Mike_Kanzer View Post
    I agree with the others. HAve the dealer put something heavy on it ( like a rotary mower) and try it out for your self to see what it is like. My L3830 also has a smooth 3 pt. - the grand L series never had the problem the regular L series had. - Mike
    I'd agree also, the rotary cutter is a good choice for trying it out, or a post hole digger, something that extends a ways back behind the tractor. It's one of the few things I don't like about my 3400, enough that I probably wouldn't buy another one unless the problem had been corrected.

    I'm not being hard-headed, there's simply too many good tractors that DON'T have this problem to buy one that does.

    It may not bother you in the least, but you do have the benefit of being aware that it may exist on the new L3800 as well as the older L models.

    Research is a good thing.

    Sean

  7. #7
    Member SmokemanGRP's Avatar
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    Feb 2008
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    36
    Location
    SE Arizona
    Tractor
    Kubota L3800HST

    Default Re: L3800 3pt hitch operation

    Yes, my L3800 has the jerky 3pt problem. As others have said, if you try to nudge it up a bit at a time it bounces.

  8. #8
    Gold Member lzicc's Avatar
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    Jul 2009
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    385
    Location
    Pittsburgh, Pa
    Tractor
    Kubota Grand L4060

    Default Re: L3800 3pt hitch operation

    I haven't used my 3 point much, but I did notice a jerkiness to it. Is there a way to fix that? Recall or is that just the way it is?
    Kubota L4060 HST - LA805, BH92, Thumb, 72" BoxBlade

  9. #9
    Elite Member Chilly807's Avatar
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    Sep 2009
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    3,217
    Location
    Nova Scotia
    Tractor
    Kubota L3400DT

    Default Re: L3800 3pt hitch operation

    Quote Originally Posted by lzicc View Post
    I haven't used my 3 point much, but I did notice a jerkiness to it. Is there a way to fix that? Recall or is that just the way it is?
    It's too bad you didn't see the "Saga of The L-Series 3 Point Hitch" on PBS before you bought...

    OK, enough of that, there are a couple of very long threads here devoted to the topic, without redesigning the tractor we've exhausted most if not all avenues.

    Here's one of them:

    http://www.tractorbynet.com/forums/k...d-3-point.html

    In my personal opinion, I think the valve allows too much flow into the raise cylinder of the 3 point hitch, or the flow isn't damped enough. The feedback linkage shuts the flow off rather abruptly, which is what causes the bounce.

    I've toyed with the idea of trying to install a restrictor in the line going to the 3 point valve, but came to the conclusion that it would simply cause the flow to go over the main relief valve, since the restriction needs to be after the valve, but before the cylinder. The valve only uses oil from the stream when the position lever is moved to "raise", so any restriction in front of it is pointless.

    I think the current tractors, my '09 included, have the most advanced valve Kubota has come up with for the economy L-series. The early ones were worse from what I've seen. The fact the Grand L's don't have the same problem leads me to believe the problem is in the cylinder and internal linkage design, not the valve.

    The only thing that's going to entirely cure it, in my opinion, is a re-design of that part of the system, and evidently Kubota didn't go that far with the L3200/L3800 from what we've seen here recently. I approached my dealer about it last year, they were of the opinion that some folks had complained about it, and that there was no real "fix" for the problem.

    Sean

  10. #10
    New Member
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    Feb 2011
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    15
    Tractor
    Kubota L3700SU

    Default Re: L3800 3pt hitch operation

    This is the first I've read of this problem and I've noticed it with my 2010 L3700 with a load on it. It wasn't a harsh action but not as smooth as my B1700. I have the draft control turned back for a slower rise and fall.

    Does the draft contol affect this problem? I haven't experimented with it yet since I only recently noticed it.

    Not a problem but maybe an annoyance.

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