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  1. #1
    Bronze Member dj1701's Avatar
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    Nov 2002
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    96
    Location
    East Concord, NY
    Tractor
    John Deere 4320

    Default PTO shaft question?

    My girlfriend just bought a new kubota BX with a tiller. She noticed that after using it, the plastic sleeve on the PTO shaft was all chewed up.

    My first thought was that the dealer cut the shaft to short. That the plastic sleeve separated when she lowered it to till. When she lifted it up again the two halves smashed together. My question is, with the tiller parallel to the ground (not tilted forward or backwards) Should the plastic sleeve separate when in use? Also could there be any other reason that the plastic guard would be damaged?

    Thanks
    Dave

    P.S. I would not be asking these questions, but I live 1500 miles from her and can not see for myself whats going on.

  2. #2
    Gold Member AStanton's Avatar
    Join Date
    Feb 2012
    Posts
    488
    Location
    North Central, CT

    Default Re: PTO shaft question?

    In my opinion, sounds like he cut the shaft too long. There should be at least 1" distance between the two outer shield shafts. Experiment with the tiller, lowering and raising the unit until the shaft is at its shortest point. This is where you want the 1" clearance. There are some good videos on this on You Boob as well as some PFD files on the net.
    Running the shaft too long can wreck your PTO, so don't run you tiller until it has been checked out.
    Good luck.

  3. #3
    Veteran Member yelbike's Avatar
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    Nov 2011
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    1,371
    Location
    Near Winnipeg, Mb, Canada
    Tractor
    John Deere 2305, 2320,Z465

    Default

    I would think the cover is too short. If you watch EAs web video on how to cut a pto shaft. They say to cut the shield one inch shorter than the shaft ends to aid in assembly IIRC. When properly fitted there should be no exposed shaft. I would bring it back to the installing dealer for warranty. They may have left a raw edge on the shield end the burrs wore through and damaged the outer shield.....pure speculation without pictures.
    Carefull what you aim for, Aim for nothing and you will achieve it with amazing accuracy.

  4. #4
    Silver Member
    Join Date
    Jun 2008
    Posts
    142
    Location
    SW Iowa
    Tractor
    BX24

    Default Re: PTO shaft question?

    Quote Originally Posted by dj1701 View Post
    My girlfriend just bought a new kubota BX with a tiller. Thanks
    Dave
    That is the the kind of girlfriend to have.
    Take Care,
    Doug in SW IA

  5. #5
    Bronze Member dj1701's Avatar
    Join Date
    Nov 2002
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    96
    Location
    East Concord, NY
    Tractor
    John Deere 4320

    Default Re: PTO shaft question?

    I have not seen it in action, but from what she tells me, the sheild ends come apart when the tiller is all the way down and tilling.

  6. #6
    Veteran Member
    Join Date
    Dec 2009
    Posts
    1,091
    Location
    Kansas...USA
    Tractor
    Kubota B2620 (2012)

    Default Re: PTO shaft question?

    Just like Yelbike, it seems too short since the shields came apart when lowered but then jammed the steel ends together when raised and lowered again. And it seems like it's a dealer problem for the fix.
    Kubota B2620 HST

  7. #7
    Platinum Member
    Join Date
    Mar 2010
    Posts
    567

    Default Re: PTO shaft question?

    Quote Originally Posted by dj1701 View Post
    I have not seen it in action, but from what she tells me, the sheild ends come apart when the tiller is all the way down and tilling.
    ^^^ That is everything you need to know right there.

    BTW: the above also *may* indicate that the PTO inner & outer shafts are too short as well; if there isn't enough overlap between them eventually the two halves are going to come apart, and as you are probably very much aware that situation DOES NOT END WELL for the PTO housing and/or PTO gearset.

    Wrooster

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