Air Hammers

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Model T Ford Forum: Forum 2012: Air Hammers
Top of pagePrevious messageNext messageBottom of page Link to this message  By Gavin Harris on Monday, May 14, 2012 - 02:43 am:

I am looking to transfer handbrake ratchet, running board brackets etc to a better frame. I have bought the rivets, hand held bucking bars and instructional DVD from the Big Flats Rivet Co.
Now, having watched the DVD, have bought the tools for my air gun.
I have owned the air gun for many years but have never used it. I assume that the loop of the retaining spring goes around the fat portion of the tool to stop it flying out of the hammer.
Problem:- the tools I have bought are 14 & 16mm diameter while the spring only takes a 12mm tool .

Do the retaining springs come in different sizes for the same machine or do I need to buy another bigger machine?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dave Huson, Berthoud, Co. on Monday, May 14, 2012 - 05:34 am:

Gavin Harris:

If you rivet your handbrake ratchet to the frame, years later if you want to sharpen the teeth on your ratchet you will regret riveting the ratchet. Bolt it on using self locking nuts.


Top of pagePrevious messageNext messageBottom of page Link to this message  By A. J. "Art" Bell on Monday, May 14, 2012 - 03:31 pm:

Most common automotive air hammers use a standard .401” shank to fit in the tool.
The push aside spring type retainer is best used to keep the chisel from falling out of
the gun when not being used, and never to be trusted to keep the chisel from becoming
a missile when using the gun. Where are you measuring the ”mm” dimensions at?
Is this on the portion that enters the gun, the retainer boss or the exposed part of the tool shank?
Here are some of the retainer styles . . .

Push aside retainer – does not need to be removed to insert chisel


Slightly safer style – must be removed to install chisel



A couple of the many positive or safety styles – Quick change type





Regards
Art


Top of pagePrevious messageNext messageBottom of page Link to this message  By Gavin Harris on Monday, May 14, 2012 - 04:32 pm:

Thanks Art,
I have the push aside type. My measurement is across the loop that the shaft goes through.
I did try it last night (while you guys were sleeping); as I said above, the shank of the tool is too big to fit completely inside the loop of the spring but I figured that the spring pushing sideways on the tool would stop the tool flying out.
It did work but I overestimated the length of rivet to leave protruding out;I will have another go tonight.Loaded hammerfirst try


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mack Cole ---- Earth on Monday, May 14, 2012 - 07:53 pm:

All above is good info.
Just be sure since you aint used it in a long time,to put some type oil in the air connector to oil the workings of the hammer.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Gavin Harris on Monday, May 14, 2012 - 08:04 pm:

Thanks Mack, actually the first time ever that I have used it. and I did put in a few drops of oil before connecting it to the hose.


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