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  1. #11
    Veteran Member brain55's Avatar
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    Jan 2008
    Posts
    1,776
    Location
    Brentwood, CA

    Default Re: Wheel broke off !

    Do yourself a favor and replace it with the axle from a B21. You will have to buy new studs too because they have screw-in studs rather than press-in. They are much stronger than the B7800 axles. I was responsible for a fleet of these machines all with foam filled front tires, when they broke I would replace them with the B21 axles and never have another problem. I was working for a landscape contractor and believe when I say these machines were abused.

    Brian

  2. #12
    Super Member crazyal's Avatar
    Join Date
    Dec 2003
    Posts
    6,412
    Location
    Northern Vermont

    Default Re: Wheel broke off !

    I would also look at the other axle to see if it's showing signs of cracks.
    Kubota L4240,Case 580K backhoe, Case 450 Dozer

  3. #13
    Member
    Join Date
    Jan 2012
    Posts
    34
    Location
    Pacific NorthWest
    Tractor
    Kubota B7800, LA402 FEL

    Default Re: Wheel broke off !

    Quote Originally Posted by brain55 View Post
    Do yourself a favor and replace it with the axle from a B21. You will have to buy new studs too because they have screw-in studs rather than press-in. They are much stronger than the B7800 axles.
    Hey, Brian, thanks for the idea. I would definitely want something good and strong if I'm going to put the work into this.

    I'm looking at the parts list for both the B21 and the B7800, from the Messick's site. According to their parts list, the part number is exactly the same for both the B21 and the B7800. So is that a Messick's thing, that the parts would be exactly the same? Same part number, same price, everything.

    How did you find that your parts for the B21 were stronger? I would like that to be the case, because I would definitely like to go that direction.

    Thanks again.

    PCP
    Last edited by Post Carbon; 04-18-2012 at 01:33 PM.

  4. #14
    Member
    Join Date
    Jan 2012
    Posts
    34
    Location
    Pacific NorthWest
    Tractor
    Kubota B7800, LA402 FEL

    Default Re: Wheel broke off !

    Well, it's over a year later, but I wanted to post the photos of my repair, since the thread that helped me most (http://www.tractorbynet.com/forums/k...apped-off.html) was so great with the pictures, and I figure one more example of a repair is always helpful.

    I'll probably post in a couple different posts, as there are a lot of photos. I'm doing an B7800 axle repair for dummies here.....

    OK, this is a bit awkward, and let's hope the thumbnails stay in order.

    1) the broken part(s) and the new hub, shown without studs in yet
    2) cleaning the old sealant off--why not do it in the comfort of a warm kitchen
    3) outer plate
    4) hub seated through plate
    5) seating the C rings--the guy at the tractor place said to put them in with lots of grease, like gluing them in so they stick tight
    6) seating the gear (yeah, getting that off originally was tough--used a 3 prong gear puller)
    7) placing the bearing
    8) seating the bearing, tiny taps
    9) oh, go to the next post
    Attached Thumbnails Attached Thumbnails Wheel broke off !-p4200021t-jpg   Wheel broke off !-p4200026t-jpg   Wheel broke off !-p4210036t-jpg   Wheel broke off !-p4210037t-jpg   Wheel broke off !-p4210042t-jpg  

    Wheel broke off !-p4210045t-jpg   Wheel broke off !-p4210046t-jpg   Wheel broke off !-p4210050t-jpg  

  5. #15
    Member
    Join Date
    Jan 2012
    Posts
    34
    Location
    Pacific NorthWest
    Tractor
    Kubota B7800, LA402 FEL

    Default Re: Wheel broke off !

    To continue B7800 Axle Repair for Dummies:

    1) Everything back, hopefully, in place, ready to re-attach
    2) Waiting tractor, great place to break down, couldn't have planned that one better
    3) Uncovered
    4) Close up
    5) Applying the sealant into groove--I don't get manicures
    6) Almost completely attached. Will fill with about a gallon of oil after this....
    7) Tractor, back in service !!
    Attached Thumbnails Attached Thumbnails Wheel broke off !-p4210051t-jpg   Wheel broke off !-p4210053t-jpg   Wheel broke off !-p4210054t-jpg   Wheel broke off !-p4210055t-jpg   Wheel broke off !-p4210058t-jpg  

    Wheel broke off !-p4210060t-jpg   Wheel broke off !-p4220062t-jpg  

  6. #16
    Super Member texasjohn's Avatar
    Join Date
    Oct 2005
    Posts
    6,048
    Location
    Central Texas, Jarrell
    Tractor
    Kubota Grand L5030HSTC

    Default Re: Wheel broke off !

    great update and photos...great job!
    Joy is having the tools you need and needing the tools you have!

    Kubota 5030 HSTC, BB, Danueser PHD, LA853 QA HD FEL w JD toothbar, 3pt chisel, 3 pt disk, 6' shredder, Kubota FEL hay spike, 3pt hay fork w carryall, Kubota RTV 1140

  7. #17
    Elite Member Gordon Gould's Avatar
    Join Date
    Apr 2007
    Posts
    3,084
    Location
    NorthEastern, VT
    Tractor
    Kubota L3010DT, Dresser TD7G Dozer

    Default Re: Wheel broke off !

    Pictures are the greatest - Thanks.
    "If you're not making any mistakes then you're not doing anything"

    L3010DT, Farmi JL290 Winch, ATI Grapple, BearCat 5" Chipper, 6' & 7' Rear Blade,
    7' Sickle Bar, 5' Land Plane Grading Scraper, Dresser TD7G Dozer

  8. #18
    Veteran Member
    Join Date
    Apr 2011
    Posts
    1,174
    Location
    Erie Pa.
    Tractor
    Montana R4944, Ford Jubilee, Ford 621, Ford 841

    Default Re: Wheel broke off !

    It looks like that old one had already been welded before you got it? Did it take this long to get the parts or just this long to get it posted?
    Montana R4944
    Ford Jubliee, Ford 841, Ford 621 industrial with FEL & BH

  9. #19
    Member
    Join Date
    Jan 2012
    Posts
    34
    Location
    Pacific NorthWest
    Tractor
    Kubota B7800, LA402 FEL

    Default Re: Wheel broke off !

    It took only about a week to get the part--the photos are from last year and they've been hanging around awhile. And it's possible it had previously been welded, yes, but I'm the 2nd owner.

  10. #20
    Super Member
    Join Date
    Apr 2002
    Posts
    7,685
    Location
    Northern Virginia
    Tractor
    Kubota's, John Deere's

    Default Re: Wheel broke off !

    You know your a true B7800 owner when you do this repair!

    Nice pics!

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