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

[Cecil R Bearden]

If you can sharpen that chisel flat on one side, with a slight radius to 
the cutting edge.  This way the [power of the impact is started on a 
very small section of chisel.  This raises the PSI force greatly and 
starts a cut faster.   I am not good at explaining without pictures.   I 
have cut 5/8 bolts with these.   If you can get an industrial riveter 
instead of an air chisel, it will work much better.   a 6X riveter will 
cut nearly anything..

Cecil in OKla


On 9/14/2012 4:14 PM, Mogrits wrote:
> We've been looking for one. We know it exists but we're working hundreds of
> miles home and don't have access to the vendors we have at home. Our new
> air hammer and cut-off chisel is making some time and we're going looking
> for those horseshoe nail pliers too.
>
> Thanks for all the terrific advice. I was certain this list would help!
>
> Warren
> On Sep 14, 2012 5:02 PM, "charlie hill" <charliehill at embarqmail.com> wrote:
>
>> 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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>>>>
>>>
>>> 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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