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  1. #11
    Epic Contributor Soundguy's Avatar
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    Default Re: How do I ream out hardened steel?

    i thought about the bushing idea.. iut would have to be hard, and captured with a flange top and bottom to be of mych use though..

    i've done the drill job on a regular pto yoke ( non slip clutch ) for a smooth spline adapter.. i made it multi to fit both size mowers I had at the time.. in my case.. one was a half inch bolt and the other was soem real weird tapered pin! i just drileld the other hole perp and it worked fine as long as I had them.

  2. #12
    Veteran Member Gordon Gould's Avatar
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    Default Re: How do I ream out hardened steel?

    Or put short 1/2 OD 3/8 ID bushings on the bolt
    "If you're not making any mistakes then you're not doing anything"

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

  3. #13
    Epic Contributor Soundguy's Avatar
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    Default Re: How do I ream out hardened steel?

    day late and dollar short eh?

  4. #14
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    Default Re: How do I ream out hardened steel?

    In the shop we would often use a hone... .125 is a lot of material for a hone to take off.

    What about a 7/16 or a metric bolt around the same size?

    You may find the hardness is only surface deep and going oversize will take away the hardened wear surface.

  5. #15
    Veteran Member Gordon Gould's Avatar
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    Default Re: How do I ream out hardened steel?

    Quote Originally Posted by Soundguy View Post
    day late and dollar short eh?
    yeah - sorry. should have been paying more attention.
    "If you're not making any mistakes then you're not doing anything"

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

  6. #16
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    Default Re: How do I ream out hardened steel?

    This is not anwering your question but a comment already given. If you look at the Owning and Operating section of this site on a recent posting about Check your shear bolts it demonstrates it well. A grade 8 bolt used instead of a softer shear bolt and the spline shaft ended up breaking instead of the shear bolt plus a fire started also. Just saying.

  7. #17
    Elite Member
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    John Deere 1070

    Default Re: How do I ream out hardened steel?

    I don't see what all of the fuss is about with eliminating the shear bolt. He has a slip clutch. I have a slip clutch on mine and as far as I know it never had shear bolt from the factory. If the clutch is adjusted properly I don't see an issue. Am I missing something? Do they usually come new with a "back-up" protection device?

  8. #18
    Super Star Member Egon's Avatar
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    Default Re: How do I ream out hardened steel?

    Got room for a new fabricated coupling with the proper holes??

    Easiest is a bushing insert.
    Egon
    50 years behind the times
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    Worn out skin bag filled with rattlin bones

  9. #19
    Epic Contributor Soundguy's Avatar
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    Default Re: How do I ream out hardened steel?

    if his has been sloppy and cutting.. i bet those half inch holes are elipses now.

  10. #20
    Epic Contributor Soundguy's Avatar
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: How do I ream out hardened steel?

    Quote Originally Posted by mikehaugen View Post
    I don't see what all of the fuss is about with eliminating the shear bolt. He has a slip clutch. I have a slip clutch on mine and as far as I know it never had shear bolt from the factory. If the clutch is adjusted properly I don't see an issue. Am I missing something? Do they usually come new with a "back-up" protection device?
    every one I've seen either you run a soft bolt as a shear.. or if you add a torque limiter you attach the limiter with a hard bolt in the same hole. IE.. no backup.

    just what I've seen anyway..

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