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  1. #11
    New Member
    Join Date
    Jun 2009
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    7

    Default Re: Splitting a tractor

    with a floor jack, 2 stands, metric socket set (12,17,19,26mm) and a screw driver, i split the tractor at the transmission shroud instead of the clutch housing.

    the threads on the transmission shaft had been stripped by the propellor shaft coupling. by the looks of the rust, the shear bolt (or pin spring in the parts book) had sheared off the coupling a long time ago. the damage was recent (shiny metal) and stripped threads matches up with what likely caused it - engaging PTO at potentially low RPMs.

    after splitting the tractor, i slid the propellor shaft out and mounted it back onto the transmission shaft. turning by hand, i was able to make the coupling slip. afterwards i engaged the PTO gear and turned the transmission shaft by hand. the PTO output turned without a problem. when i had the squeal the PTO did nothing. so odds are, i found the issue.

    rather than dig further, i'll replace the shear bolt, reassemble, replace the oil and see how she goes.

    aside, splitting the tractor at the transmission was fairly simple (just dont forget the mud guards ), with the only caveat being the foot pedal rod into the HST. getting the cotter pin out/back in will take some patience. all else is a no-brainer.

    cheers
    f

  2. #12
    Veteran Member Tig's Avatar
    Join Date
    Oct 2006
    Posts
    2,498
    Location
    The County, Ontario, Canada
    Tractor
    Kubota, B7100HST-D

    Default Re: Splitting a tractor

    Thanks for the detailed update. Good luck with the repair.
    Steve

    The best things in life are not things.

  3. #13
    Bronze Member zukota's Avatar
    Join Date
    Mar 2009
    Posts
    75
    Location
    Where PA, MD, and DE Meet
    Tractor
    DK35 H

    Default Re: Splitting a tractor

    Quote Originally Posted by futch View Post
    ...and stripped threads matches up with what likely caused it - engaging PTO at potentially low RPMs.
    wait. what?


    I'm a little new to tractors and PTO, but I thought low RPM engagement was the name of the game?
    - Max

    1 Machine 2 shades of Orange.

  4. #14
    New Member
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    Jun 2009
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    7

    Default Re: Splitting a tractor

    well i'm back in business. replaced the shear bolt and she's running...smoother too on the new lube.

    Quote Originally Posted by zukota View Post
    wait. what?


    I'm a little new to tractors and PTO, but I thought low RPM engagement was the name of the game?
    i'm no expert either but in my experience, engaging PTO at low RPMs may not have enough power to overcome the attachments startup torque. engine could stall at the very least.

  5. #15
    Bronze Member zukota's Avatar
    Join Date
    Mar 2009
    Posts
    75
    Location
    Where PA, MD, and DE Meet
    Tractor
    DK35 H

    Default Re: Splitting a tractor

    Quote Originally Posted by futch View Post
    well i'm back in business. replaced the shear bolt and she's running...smoother too on the new lube.



    i'm no expert either but in my experience, engaging PTO at low RPMs may not have enough power to overcome the attachments startup torque. engine could stall at the very least.
    Sorry for not letting this go, maybe the mods can split this and move it into the owing / operating forum?

    Anyway. It sounds to me like it would be the exact opposite. A low RPM PTO engagement (minimum tractor torque) and a large or bound implement should result in a stalled tractor, as you suggested. But a high RPM PTO (maximum tractor torque) engagement with a large or bound implement would result in a failure at the weakest link - in this case the shaft spline?
    - Max

    1 Machine 2 shades of Orange.

  6. #16
    New Member
    Join Date
    Apr 2013
    Posts
    1
    Location
    Hooper utah
    Tractor
    kubota

    Default Re: Splitting a tractor

    my kubota B7100 makes a grinding noise when you let out the cluch and wont move forward or back. Could the cluch be bad ?

  7. #17
    Veteran Member Carl_NH's Avatar
    Join Date
    Apr 2002
    Posts
    2,017
    Location
    Coastal NH
    Tractor
    01 Kubota B21TLB, 2010 Ferris 52" ZTR, Cub Cadet 1811, Gravely Super8

    Default Re: Splitting a tractor

    Quote Originally Posted by rnauta View Post
    my kubota B7100 makes a grinding noise when you let out the cluch and wont move forward or back. Could the cluch be bad ?
    You have a gear failure in the gearbox, not a clutch problem if it does not move F or R in any gear.
    Kubota B21TLB, Ferris IS2000, Cub Cadet 1811

  8. #18
    Veteran Member Carl_NH's Avatar
    Join Date
    Apr 2002
    Posts
    2,017
    Location
    Coastal NH
    Tractor
    01 Kubota B21TLB, 2010 Ferris 52" ZTR, Cub Cadet 1811, Gravely Super8

    Default Re: Splitting a tractor

    Quote Originally Posted by rnauta View Post
    my kubota B7100 makes a grinding noise when you let out the cluch and wont move forward or back. Could the cluch be bad ?
    You have a gear failure in the gearbox, not a clutch problem if it does not move F or R in any gear.
    Kubota B21TLB, Ferris IS2000, Cub Cadet 1811

  9. #19
    New Member
    Join Date
    Sep 2013
    Posts
    2
    Location
    alberta
    Tractor
    b7100

    Default Re: Splitting a tractor

    my clutch does not release. it sounds like I have to split the tractor. I replaced the clutch about 2 years ago but I found the clutch hard to set up. this time I want to do it right. what should a person replace when I get in there? any advise is appreciated

  10. #20
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    4,718
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: Splitting a tractor

    Quote Originally Posted by rnauta View Post
    my kubota B7100 makes a grinding noise when you let out the cluch and wont move forward or back. Could the cluch be bad ?
    Clutch hub could have stripped out.

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