[AT] Bush Hog

[szabelski at wildblue.net]

Should be able to find one at any hardware store. You’ll have to find one that accepts your shear pin size and isn’t so large that you have to drill half of the shaft away to get it in. If you can’t find one that isn’t too large, buy one that fits the drilled hole, weld it in, then drill it out to the correct size for your pin. All you’re really trying to do is basically rebuild the shaft to spec.

Carl


----- Original Message -----
From: Mike M <meulenms at gmx.com>
To: at at lists.antique-tractor.com
Sent: Tue, 11 May 2021 22:14:47 -0400 (EDT)
Subject: Re: [AT] Bush Hog

Thanks guys, where would I find such a bushing? I don't weld but have a
son in law that can.

thank-you

Mike M


On 5/11/2021 9:54 PM, szabelski at wildblue.net wrote:
> Simply drilling it out might weaken it to the point of snapping under load. You’d have to drill it to a standard bolt size which might be larger than you really want it to be. I would drill it to the minimum size necessary to get it round again and insert a bushing to bring it back to near spec. Then I would weld the bushing in so that you restore some strength to the shaft. Another option would be to drill a new hole 180 from the existing hole and fill in the old hole with weld. Good luck!
>
>
> Carl
>
> ----- Original Message -----
> From: Mike M <meulenms at gmx.com>
> To: Antique tractor email discussion group <at at lists.antique-tractor.com>
> Sent: Tue, 11 May 2021 20:06:11 -0400 (EDT)
> Subject: [AT] Bush Hog
>
> Hey Guys, I have a question.  I have an older John Deere Bush hog. I
> believe it's a 720 model. I bought it at an auction for $400 bucks and
> have used it for 5 years so it doesn't owe me anything. I use it to mow
> pasture, not hard use. I'm sick and tired of replacing shear pins. Upon
> further inspection the shaft out of the gear box has become ob-longed
> over the years, which allows the shear bolt to have some slop in it. Do
> I drill out the ob-longed hole and use a larger bolt or what? Any thoughts?
>
> Thanks,
>    Mike M
>
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