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  1. #1

    Default gear rebuilding service?

    The final reduction gears on the right side of my Yanmar compact tractor are damaged and I have not been able to find replacements. The 3" dia. straight cut pinion has half a tooth broken and the next tooth has a crack in half of it. The mating 12" gear has minor damage in 8 to 12 teeth from meshing with the broken pinion. Can these be welded up and recut? Any suggested sources? Thanks, Bill.


  2. #2

    Join Date
    Feb 2003
    Posts
    40
    Location
    Monroe County WestVirginia

    Default Re: gear rebuilding service?

    Bill I have had some sucess of getting a machine shop to weld and cut or at times completely make one. If all else fails try that or at least i would check it out to see if they can.[/list]

  3. #3
    Super Member
    Join Date
    Oct 2003
    Posts
    7,344
    Location
    Northeast, Ohio
    Tractor
    TC-40D SS New Holland

    Default Re: gear rebuilding service?

    I sympathize with you as I owned a Bison/Shenniu for 5 years and it was always a game finding parts for it. I would think that there are more than a few tractor recyclers with Yanmars to part out. I would use the Google search engine and let your fingers do the walking for you.

    I wish you luck in finding your parts.

  4. #4

    Default Re: gear rebuilding service?

    From studying manuals from similar model Yanmars it appears that I need to find the exact same model in a boneyard. I did find the large gear new but I believe it is the same as a model that was sold in the US. My grey Yanmar has a lot nicer braking system and so the pinion gear/shaft are different. I did e-mail a gear rebuilder for trucks and heavy equipment, I'll see if I get a response, thanks all, bill.

  5. #5
    Veteran Member
    Join Date
    Feb 2002
    Posts
    1,055
    Location
    WVa
    Tractor
    Kubota L3710, Ford 5600, Case MB4/94, Kubota B6200

    Default Re: gear rebuilding service?

    Not all machine shops have the equipment for gear work. I'd start calling the machine shops in your area and ask for recommendations. If they have a dividing head and a horizontal mill they could get the specific cutters needed to duplicate the teeth on your gear/gears.

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