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  1. #1
    New Member
    Join Date
    Feb 2011
    Posts
    6
    Tractor
    Kubota BX23

    Default BX23 HST Fan Replacement

    Like many others on this forum, I've wiped out the HST fan on my kubota.
    The removal of the old fan went very smoothly since I didn't have any
    blades to get in the way. I need help now with the replacement of
    the fan. Do I need to disassemble one of the couplings on the
    propeller shaft to gain enough room to install the new fan??
    Any good tricks floating around???

  2. #2
    Elite Member
    Join Date
    Sep 2008
    Posts
    3,203
    Location
    NE USA
    Tractor
    JD LA115, WH 244, WH 525 hydro-pops,Original Troy Built Horse 8 HP

    Default Re: BX23 HST Fan Replacement

    Your in for some major surgery.

    FWIW One of the members had a 2 piece metal fan made at nearby machine shop using an OEM replacement as a model from what I remember.

    I dount know if you would have room to install a pair of couplers to spilt the shaft in two pieces and install a new fan which would make your life easier.

    A pair of lovejoy couplers would work if there is room.

  3. #3
    New Member
    Join Date
    Feb 2011
    Posts
    6
    Tractor
    Kubota BX23

    Default Re: BX23 HST Fan Replacement

    The propeller shaft compressed enough to get the old one out, but not the new one in.
    It appears that I only need to remove the C-clip and the coupling should slid off,Ha Ha.
    My fear in doing this, is the last time I pulled a shaft from a coupling, I ended up
    with a handful of needle bearings. It wasn't on a kubota tractor, and the shop manual
    is no help.

  4. #4
    Super Star Member
    Join Date
    Mar 2009
    Posts
    16,122
    Location
    Missouri
    Tractor
    Kubota, John Deere, Case, Massey Ferguson, Ford
    Thread on helpful tractor abbreviations: http://www.tractorbynet.com/forums/o...-acronyms.html

  5. #5
    Super Member
    Join Date
    Apr 2004
    Posts
    6,380
    Location
    SF Bay Area-Ca Olympia WA Salzburg Austria
    Tractor
    Cat D3, Deere 110 TLB, Kubota BX23 and L3800 Craftsman Mower, Deere 350C Dozer

    Default Re: BX23 HST Fan Replacement

    Are you running a skid plate or OEM?

    A couple of months ago, I feared the worst when I heard a strange noise... turning out a very long switch snaked it's way past the skid plate and was hitting the fan... close, but no damage.

    I feel your pain...

  6. #6
    New Member
    Join Date
    Feb 2011
    Posts
    6
    Tractor
    Kubota BX23

    Default Re: BX23 HST Fan Replacement

    The sad part is I was getting ready to order from Bro-Tek their
    Skid pads, but to late. I have since ordered them but the fan
    still needs replacing. I could sware that I saw an entry in this forum
    that indicated that the BX23 was easier to do than the later BX24/25.
    Can't find it anymore.

  7. #7
    Gold Member shownuff's Avatar
    Join Date
    Aug 2004
    Posts
    368
    Location
    dutchess county new york
    Tractor
    2008 bx 24

    Default Re: BX23 HST Fan Replacement

    I think I saw that the bx 23 you dont have to move the engine forward,just work on the shaft
    " diesel smoke and mirrors"

  8. #8
    Elite Member
    Join Date
    Oct 2004
    Posts
    2,923
    Location
    limerick pa lycoming county pa
    Tractor
    kubota bx23

    Default Re: BX23 HST Fan Replacement

    I've never had the pleasure to replace it but there is suppose to be enough play to get the shaft out.

    I do have a skid plate but won't hesitate to cut the shaft if it wont come out and key it and put a rigid shaft coupling on.

    tom
    If it ain't broke we will help you brake it
    If it is broke we will help you get it fixed!


    https://www.facebook.com/joseph.t.mussington

  9. #9
    New Member
    Join Date
    Feb 2011
    Posts
    6
    Tractor
    Kubota BX23

    Default Re: BX23 HST Fan Replacement

    Based upon the responses, and links, provided in those
    responses, I believe that kubota made a design change
    in the area of the HST fan shaft from the BX23 to the
    BX24/25. The propeller shaft couplings look completely
    different, and larger, than the ones on my BX23. This
    may be the reason there is so much discussion about moving
    the engine to install the new fan. Just a guess on my part.

  10. #10
    Silver Member Tachdriver's Avatar
    Join Date
    Nov 2010
    Posts
    203
    Tractor
    Kubota bx25

    Default Re: BX23 HST Fan Replacement

    Someone needs to come up with a definite repair for this reoccurring problem. The "cut the shaft" seems like a good one - but I have not seen any data where anyone actually did it, with pictures.

    The "split the fan" seems to be the most popular fix.


    later
    2011 model Kubota BX25 machine, Custom front hitch, 5000# Winch, Horn, Front tow hook, Thumb, FEL tooth bar, rear wheel spacers, DIY forks for the FEL, Rear skid plate, Homemade Ripper tooth, DUBBS technologies Light bar, Pats easy change system, Custom Toolbox on back of seat, Canopy, Country line Subsoiler, Homemade boompole, Kubota Arm rests, Fire Extinguisher bracket, Oil pressure Gauge, Temperature Gauge, Voltmeter, Home made PECS stabilizer bar and 4 foot United Box Grader.

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