Larry Fisher wrote: > Yo, > > Many years ago I saw a grand with bad action brackets in it. The > casting > had turned brittle like a cracker. There were cracks, small and > large, > everywhere. They were not usable anymore. They had no strength, they > were > 10 minutes away from totally shattering, and I sure didn't want to try > and > save any part of them. I got lucky. APSCO had them in stock and so I > > R&R'd them. > Dear Larry and list, If the brackets are made of "pot Metal" aluminum-zink alloy they should not be repaired even if it seems possible. The reason is that the metal is very unstable . If the demensions are checked against a new cast iron part there may be discrepencies of as much as 1/8 inch. This can make correct regulation impossible. The Aeolian Co. Made many pianos with the bad brackets. They have "108"cast into them. these should always be replaced. This can often make a piano play well again without doing very much else. If you encounter an action for which no cast iron replacement is available, a correctly designed set of wooden brackets ala Chickering would be better than the pot metal. Gene Roe, rpt > > > >
This PTG archive page provided courtesy of Moy Piano Service, LLC