<div style="color:black;font: 12pt Arial, Helvetica, sans-serif;">Mike,
<div>I was able to find a bushing to do this exact thing at a local hardware store here in Ferndale. I did try to fill in a slight divot on each side with a wire feed welder, but I have not perfected my welding skills at this point in time. A little time with an angle grinder and then a file, and I felt I had a pretty good fit. In the end, I did get a slip clutch for the PTO drive, my machine is a flail mower, not near the rotating mass of a bush hog, but the Deere 755 I use with the flail mower has a real fast acting brake on the PTO when you take it out. It took a little time getting the adjustment right, but last I checked, it slips just a tad when I inactivate the PTO. That has seemed to make my shear pins last a lot longer. </div>
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<div>Good Luck,</div>
<div>John </div>
<div>Ferndale, CA<br>
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<div style="font-family:helvetica,arial;font-size:10pt;color:black"><font size="2">-----Original Message-----<br>
From: Mike M <meulenms@gmx.com><br>
To: at@lists.antique-tractor.com<br>
Sent: Tue, May 11, 2021 7:14 pm<br>
Subject: Re: [AT] Bush Hog<br>
<br>
<div dir="ltr">Thanks guys, where would I find such a bushing? I don't weld but have a<br clear="none">son in law that can.<br clear="none"><br clear="none">thank-you<br clear="none"><br clear="none">Mike M<br clear="none"><br clear="none"><br clear="none">On 5/11/2021 9:54 PM, <a shape="rect" ymailto="mailto:szabelski@wildblue.net" href="mailto:szabelski@wildblue.net">szabelski@wildblue.net</a> wrote:<br clear="none">> 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!<br clear="none">><br clear="none">><br clear="none">> Carl<br clear="none">><br clear="none">> ----- Original Message -----<br clear="none">> From: Mike M <<a shape="rect" ymailto="mailto:meulenms@gmx.com" href="mailto:meulenms@gmx.com">meulenms@gmx.com</a>><br clear="none">> To: Antique tractor email discussion group <<a shape="rect" ymailto="mailto:at@lists.antique-tractor.com" href="mailto:at@lists.antique-tractor.com">at@lists.antique-tractor.com</a>><br clear="none">> Sent: Tue, 11 May 2021 20:06:11 -0400 (EDT)<br clear="none">> Subject: [AT] Bush Hog<br clear="none">><br clear="none">> Hey Guys, I have a question. I have an older John Deere Bush hog. I<br clear="none">> believe it's a 720 model. I bought it at an auction for $400 bucks and<br clear="none">> have used it for 5 years so it doesn't owe me anything. I use it to mow<br clear="none">> pasture, not hard use. I'm sick and tired of replacing shear pins. Upon<br clear="none">> further inspection the shaft out of the gear box has become ob-longed<br clear="none">> over the years, which allows the shear bolt to have some slop in it. Do<br clear="none">> I drill out the ob-longed hole and use a larger bolt or what? Any thoughts?<br clear="none">><br clear="none">> Thanks,<br clear="none">> Mike M<br clear="none">><br clear="none">> --<br clear="none">> This email has been checked for viruses by Avast antivirus software.<br clear="none">> <a shape="rect" href="https://www.avast.com/antivirus" target="_blank">https://www.avast.com/antivirus</a><br clear="none">><br clear="none">> _______________________________________________<br clear="none">> AT mailing list<br clear="none">> <a shape="rect" ymailto="mailto:AT@lists.antique-tractor.com" href="mailto:AT@lists.antique-tractor.com">AT@lists.antique-tractor.com</a><br clear="none">> <a shape="rect" href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com" target="_blank">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</a>
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