I am now responsible for servicing three 1997 Weber grands at Howard U, ranging in size from the 4¹11² WG-50 to WG-57 (5¹7²) and WG-60 (6¹1²). These three are now in pretty good shape overall, but need regulation. There are others on campus I haven¹t seen yet, but have heard they¹re in bad shape. Tonight I went to a hotel which is a private client of mine and re-visited a 5¹2² Young Chang G-157 for the first time in quite a long while. I was struck by the similarities -- same problems I¹m having with the Webers, which my research had told me were made by Young Chang in Inchon, South Korea. All these pianos have a ³noisy² action! At first I thought it might be worn key bushings or loose wippen or hammer flange screws. But I¹ve now taken the time to eliminate the key and the flanges. The noise appears to be either (1) the repetition or jack hitting the knuckle; or (2) the jack regulating button hitting the stop. The knocking/clicking occurs when any key is released quickly, but not even necessarily all the way up. I believe it happens when the key is released enough to let the jack return. I¹m now wondering if a third possibility is the spring in the little hole of the jack? If so, what¹s the fix? Please, this is driving me crazy! As a pianist and technician, I want to understand what¹s happening here, and this is frustrating me. I believe these pianos can be regulated to make them a lot better, satisfactory practice instruments, but before I waste a lot of time, I¹m wondering if this problem is somehow endemic to these instruments? Can this noise on every key be alleviated? Does it have anything to do with aluminum rails? HELP! Thanks, Paul -- Paul Milesi, RPT Howard University Department of Music Washington, DC University: (202) 806-4565 Home: (202) 667-3136 Cell: (202) 246-3136 E-mail: paul at pmpiano.com Website: http://www.pmpiano.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20091004/3f398c2e/attachment.htm>
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