[AT] Mott flail mower problem

[Will Powell]

Or, drill it out and go with  left handed thread... 



Or, like racing motorcycle parts, drill a tiny hole through the head of the bolt put a locking wire through it... Unless its in an abrassive environment? 



Will In SE PA 



----- Original Message -----


From: "Cecil R Bearden" <crbearden at copper.net> 
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com> 
Sent: Thursday, May 9, 2013 10:34:42 AM 
Subject: Re: [AT] Mott flail mower problem 

Mike: 
My first thought would be to drill out the threads all the way to the 
end of the arm and then use a longer bolt and double nut it. 

Cecil in OKla 


On 5/9/2013 8:43 AM, Mike wrote: 
> I have been using an ancient Mott flail mower lately for some field 
> mowing. This is a 60" pull-behind that must date to the 1950's (It came 
> to me with a Farmall AV that the PO used to use to mow his field.) It 
> works well enough, but lately, the idler pulley that keeps tension on 
> the belt comes off. I had installed a new 5/16" NF bolt and washer to 
> hold it on, but the idler turns counterclockwise and managed to undo the 
> bolt. An image can be seen at 
> <http://public.fotki.com/mikesloane/other_machinery/mott-mower-idler-pulley.html> 
> 
> The gearbox also leaks fluid, but I can live with that for now and just 
> keep adding 90 weight periodically... 
> 
> Steve Offiler suggested that I use Loctite blue to keep the bolt on, but 
> that seems a little extreme to me - I may need to change that idler some 
> day, and Loctite blue is relatively permanent. One problem is that I 
> don't know how Mott configured the setup originally - what fasteners 
> were used and if they were special or just ordinary hardware. It is a 
> wild shot in the dark, but I wonder of anyone has a similar machine that 
> they could take a picture of and/or any of the user manual pages. 
> 
> Any thoughts? 
> 
> Mike 
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