Hi Aart, I am fine and will send you a private email with details. An air hammer is a pneumatic hammer. It is air powered, and is connected to your air compressor and air hose. http://www.danairinc.com/palmnailer.html If you are restringing a piano without replacing the tuning pins, I would back the tuning pins out 1-1/2 complete turns, remove the old wires, and install new strings. Make the coils for the new strings using the Sciortino Hand Held Coil Maker (Schaff Piano Supply catalog, page 62, item #273). Once you have made the coils using the Sciortino tool and a dummy tuning pin, transfer the new coil to the tuning pin that is in the piano, tighten the coil, level the strings, squeeze the becket, seat the string at the bearing points and tune to pitch. There is no need to put a bunch of turns on the tuning pin if it is not necessary. My preference would be to replace the tuning pins at the same time as restringing because the tuning pins are usually loose. But if the tuning pins are still reasonably tight, you can restring using the original tuning pins. If you are replacing the pinblock, or doing soundboard refinishing or repair, repairing or replacing bridges, or removing/rebronzing the plate, that is another barrel of monkeys for another series of emails! Sincerely, David Vanderhoofven Joplin, MO At 10:05 AM 4/29/2005, you wrote: >Hi David, > >How are you? >Could you please enlighten me? what is an Air Hammer? >Also, are the pins removed and replaced for a restringing or just backed >out three turns? > >Thanks, > >Aart Markenstein >Aart in America Piano Service >Hoboken, NJ > >On Apr 29, 2005, at 10:30 AM, David Vanderhoofven wrote: > >>Hi Terry, >> >>I have used an air hammer on the past 3 or 4 jobs! Works great! >>However, the last two jobs ended up not as good as if I had used a sledge >>hammer and tuning pin punch. The end result was loose tuning pins in a >>new block, and I think that the loose tuning pins were the result of the >>air hammer. It is very easy to put a tuning pin in at an angle and >>damage the interior of the hole in the pinblock. >> >>Be careful to put the tuning pin in the hole at the correct angle, or >>beware of the possibility of loose tuning pins later. >> >>David Vanderhoofven >>Joplin, MO >> >>At 06:54 AM 4/29/2005, you wrote: >>>Air hammer. http://www.danairinc.com/palmnailer.html Only way to go. >>> >>>Terry Farrell >> >> >>_______________________________________________ >>pianotech list info: https://www.moypiano.com/resources/#archives > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives >
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