Using tractor driven tillers (was Re:[AT]AllisChalmersB-1lawntractor

[Gilbert Schwartz]

Cecil; I think you're right. Shear pins do work best on slower turning
applications. One of the biggest problems with them is their ability to grab
gloves, jackets and other clothing if you're not paying attention. Had a
neighbors wife get her coat caught on one while used a grain elevator
powered with a PTO. The results were very messy. Slip clutches are some
cleaner.
----- Original Message ----- 
From: "Cecil E Monson" <cmonson at hvc.rr.com>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Thursday, July 15, 2004 5:45 AM
Subject: Re: Using tractor driven tillers (was
Re:[AT]AllisChalmersB-1lawntractor


> > Haha,  I can't help but laugh Gil as I have never had a shear pin to
work
> > when it should (not saying that it won't work for you).  The first time
I
> > ever dealt with a shear pin was in an AC bush hog my dad bought with his
> > D-10 in 1959.
>
>
> My experience with shear pins is that they work best on slow
> turning machinery. I've broken lots of them on my post hole digger which
> I run as slow as the tractor will idle. Seems like as soon as the hole
> gets 16" - 18" deep almost any rock will bind it up and stop it and the
> pin breaks like butter. I don't buy shear pins at all and prefer to use
> 1/4" or 5/16" cap screws in it. I just put a handful in the tractor tool
> box and don't worry about it.
>
> My JD 32" snowblower will pop shear pins too - it has them on
> the "scooper" tines in case rocks get between them and the frame.
>
> As to the bush hog, it has a slip clutch but I've never seen
> that it has slipped at all so don't know if it works or not. I'd hate
> to depend on it stopping those heavy blades before it did any damage.
> I don't think it will happen with all the energy there.
>
> This Kubota tiller I just picked up does not have a slip clutch
> or shear pins. What it has is a humpback top to allow room for rocks to
> up and over and out. I sure hope it works on the football sized rocks I
> have to contend with here.
>
> Cecil
> -- 
> The nicest thing about telling the truth is you never have to wonder
> what you said.
>
> Cecil E Monson
> Lucille Hand-Monson
> Mountainville, New York   Just a little east of the North Pole
>
> Allis Chalmers tractors and equipment
>
> Free advice
>
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