Reading this discussion couple of weeks ago triggered my memory. Few years ago I made a 'cradle' to use my Atlas Copco air hammer as puller. Here are some pics.
I made it for Atlas Copco RRH12, it's pictured here with RRH10 - one size down from the '12 and perhaps inch shorter.
In it's place. Just two flat bars welded to the end pieces. I made them from old hydraulic ram rods. The bolt on the left goes through a hole in the end piece, this one is 12mm and I use it to pull dowel pins from large transmissions. The pins have 12 mm threaded hole. The piece of bar stock is just a big 'washer' because the through hole in the bottom is too big for this bolt size.
I just use a short pin in the gun, the bottom is shaped like a bowl to keep it centered. And with a ridge , just in case.
Proably 16mm hole in the bottom, here it's easy to use threaded rods or whatever for pulling.
To be honest - when I made this - I was pretty amazed by the power of the Atlas hammer, and expected this to be a killer pulling device. Well, compared to a 10lb hand puller it isn't. But mind you a good hand puller is pretty effective device, meaning - almost all of the energy is transferred to the - 'job'. Still this is by no means a failure because it pulls a lot and is a great time saver on some jobs. Make no mistake, this is very different animal than hammering on some U-bent steel rods like this:
I made it for Atlas Copco RRH12, it's pictured here with RRH10 - one size down from the '12 and perhaps inch shorter.
In it's place. Just two flat bars welded to the end pieces. I made them from old hydraulic ram rods. The bolt on the left goes through a hole in the end piece, this one is 12mm and I use it to pull dowel pins from large transmissions. The pins have 12 mm threaded hole. The piece of bar stock is just a big 'washer' because the through hole in the bottom is too big for this bolt size.
I just use a short pin in the gun, the bottom is shaped like a bowl to keep it centered. And with a ridge , just in case.
Proably 16mm hole in the bottom, here it's easy to use threaded rods or whatever for pulling.
To be honest - when I made this - I was pretty amazed by the power of the Atlas hammer, and expected this to be a killer pulling device. Well, compared to a 10lb hand puller it isn't. But mind you a good hand puller is pretty effective device, meaning - almost all of the energy is transferred to the - 'job'. Still this is by no means a failure because it pulls a lot and is a great time saver on some jobs. Make no mistake, this is very different animal than hammering on some U-bent steel rods like this:
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