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Thread: PTO winch shear pin replacement

  1. 19th September 2012, 07:05 AM #1
    Mick_Marsh's Avatar
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    PTO winch shear pin replacement

    The shear pin in my PTO winch has, well, sheared. I believe that is what they're supposed to do.
    Upon removal it was discovered it was just a ground down bolt. As shear pins are rather difficult to come by, another bolt will be going in.

    Question to the brains trust:
    What grade bolt would be best used as a shear pin?
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  2. 19th September 2012, 07:13 AM #2
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    An email went around some clubs regarding getting shear pins made up. I'll pm the details to you in a few hours.
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  3. 19th September 2012, 07:26 AM #3
    zwitter
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    Manufacturer should be able to provide the specs and replacements. I would say almost any bolt will be unsuitable as too hard grade steel. Mild steel pin probably best option if you have no specs.

    Sheer pin designed to be weakest link to break like a fuse to protect the rest of the winch. I just carry 2 spares. If I break one i take a chill pill and think if I was asking too much of the winch. Cost of pin negligible to other possible repair cost.

    In competition, of course anything goes.

    James


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  4. 19th September 2012, 10:05 AM #4
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    Hi Mick

    The sheer pins on capstan winches are brass and same on many other PTO, but knowing the PTO you are talking about I would think mild steel is the appropriate item.

    In fact the original is actually a waisted pin making a shear section.

    Diana

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  5. 19th September 2012, 05:08 PM #5
    uninformed
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    what brand and model of winch would be a start.....
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  6. 19th September 2012, 06:21 PM #6
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  7. 20th September 2012, 09:44 AM #7
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    Then the PM I haven't sent about capstan shear pins won't be much chop...
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  8. 28th September 2012, 08:53 PM #8
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    Mick

    I believe this is an original shear pin for the winch.



    Diana
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  9. 29th September 2012, 01:07 AM #9
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    Quote Originally Posted by isuzutoo-eh View Post
    Then the PM I haven't sent about capstan shear pins won't be much chop...
    Not to anyone if you don't post it.

    Post it up. Someone may find it useful. This is a generalised topic.
    Oh, and where is the one of the email about getting some made up?
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