[pianotech] Balance rail bushings

[Ron Nossaman]

Gregor _ wrote:
> Getting the old bushings out: I used to use steam, but I heard from 
> collegues that it´s much easier and quicker to use ethyl alcohol 
> (spiritus). Never tried that myself. But they say that subsequent 
> steaming is not necessary. The felt will just dissolve from the wood.

Try that with Titebond installed bushings.


> Installing the new felt: thread the felt thorugh the slot between key 
> and key button and push it with a needle from the key balance hole 
> upwards. I apply a thin layer of TiteBond to the felt that is sidewise 
> of the key button and pull the felt from above. I use clamps and no 
> cauls. Look here for these clamps in the catalog (item no. 42.05.00).

I was instructed to do it this way 35 years ago, and 
discovered immediately just how miserable those clamps are. As 
soon as I could, I made my first set of cauls from aluminum, 
like the 42.05.10, only not double ended. They weren't 
available anywhere I was aware of, so making them was my only 
choice. Still using them, and the other sets I've bought since.


> http://www.pianoteile.com/kataloge/pdf/Werkzeugkatalog.pdf

So what's the 40.00.00 with the big teeth on page 2.09? Looks 
lethal, but interesting.
Ron N