This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Tvak@aol.com wrote: > List > > Two questions in one day! Sorry to take up the bandwidth. > > The suspect: a family heirloom Kimball upright from the 1890/1900s. > > The piano has a brass hammer/damper lever flange rail. I know that > these can become brittle over time. Tom The one Kimball I worked on had broken a few of the flange rail fingers. I managed to find a tech who had the same piano somewhere in storage and was willing to send me the flange rails. Hopefully, your rails are still intact. What I did was to anneal the brass rails before installing them in the piano. Having done experiments on annealed and untreated rails, I found that it helped to do the heat treating. The annealed brass was still tough enough to hold the parts and is much less prone to breaking. Just take a torch to each piece and heat until it glows a dull red. This can also be done on a gas stove. Use new butt plates when reassembling the action. Try not to overtighten the butt plates. Tom Cole ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/1d/61/4f/ac/attachment.htm ---------------------- multipart/alternative attachment--
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