[AT] OT...Need some advice on old metal building

charlie hill charliehill at embarqmail.com
Fri Sep 14 13:52:44 PDT 2012


They make a chisel for air hammers that is in a V shape with a slightly 
sharpened edge inside the V.  See if you can find one of those.

Charlie

-----Original Message----- 
From: Mogrits
Sent: Friday, September 14, 2012 1:50 PM
To: Antique tractor email discussion group
Subject: Re: [AT] OT...Need some advice on old metal building

Thanks for all the suggestions. We've tried variations of all of them.
There are limitations to each method. The reality is its an occupied
building and many of the exterior walls have been built against. Not to
mention the roof. The purlins and girts are spaced 4' o.c. and the screws
are 9"oc along them and the bldg is 50x120x20 so you can see there are
literally thousands of screws w inaccessible nuts. We tried just peeling
off the sheeting w a wrecking bar but the sheets are 22 ga!

My Super just called and said he may have found a way. He borrowed a
powerful air chisel and a dull bit and knocked off 10 screw heads in 3
mins. That's the production we need at a minimum .
On Sep 14, 2012 1:32 PM, "Larry Goss" <rlgoss at insightbb.com> wrote:

> How about a nut cracker? Those normally do not operate fast, but they do
> remove square or hex nuts from just one side of an installation.  You may
> be able to rig up a power drill to do the heavy work for you.  I think I
> bought a set of them at Harbor Freight.  They come in two sizes, and I 
> used
> mine about a month ago to split a rusted square nut on an antique
> cultivator that I'm restoring.  the across flats distance was one inch.
>  That was the absolute limit of the nut cracker, but it did it without any
> broken tools or busted knuckles.
>
> Larry
>
>
> ----- Original Message -----
> From: "Ken Knierim" <ken.knierim at gmail.com>
> To: "Antique tractor email discussion group" <at at lists.antique-tractor.com
> >
> Sent: Friday, September 14, 2012 11:52:32 AM
> Subject: Re: [AT] OT...Need some advice on old metal building
>
> On Fri, Sep 14, 2012 at 8:22 AM, Mogrits <mogrits at gmail.com> wrote:
>
> > I'm adding onto what's likely the oldest pre-engineered metal building
> > I've ever seen, much less worked on for a customer. We are going to
> > re-skin the existing building and add insulation while we're at it.
> >
> > However, the darned thing is sheeted with dome headed slotted screws
> > and inside each has a square nut. Removing them is giving my erection
> > crew a fit. Anyone have a suggestion on how to remove these things or
> > a quick way to knock the heads off. It being a working building, it's
> > really going to be an issue trying to get to the nuts when we get to
> > the roof. We've tried grinding them off and chiseling them off but
> > haven't found the right way to make some time.
> >
> > Thanks
> > Warren
> > _______________________________________________
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> > http://www.antique-tractor.com/mailman/listinfo/at
> >
>
>
> Have you tried tightening them instead? That will probably snap them off.
> Not sure if that's what you're looking for but...
>
> We put a hopper bin together with a dome shaped slotted screw with square
> nuts and we could break those silly things with hand tools. Where the head
> attached to the screwed part was soft, weak or whatever and would just pop
> off if you reefed on it with a large screwdriver, let alone an open end
> wrench. Made air tools useless since we couldn't set the torque low 
> enough.
> A butterfly wrench might work now but Dad didn't have one back in the day.
>
> Ken in AZ.
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