Geoff, >From experience on this particular vintage of this brand there were some issues on original felt surface condition and pinning. Lubrication and alcohol/water sizing don't work so repinning is required and, so far, is a permanent repair. Allan Allan L. Gilreath, RPT _____ From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Geoff Sykes Sent: Monday, October 30, 2006 12:19 PM To: Pianotech at Ptg. Org Subject: Hammer flange question Greetings all -- I have a customer with a Young Chang G-175 on which I'm going to go in and do some regulating. It's a 1987 so I know that it's in the middle of the growing action brackets years, but so far it shows little, if any, signs of this happening. Most of the hammer flanges in this piano are too tight, giving from one to two swings at best. Today's question is about hammer flanges. If a flange is too loose, the bushing would usually need to be re-pinned, yes? That said... I understand that there are three ways to deal with too-tight flanges: 1) repin - remove the old pin, replace and/or ease the bushing and repin 2) lubricate - with Protek, Goose-Juice, Naphtha+Silicon, etc. 3) ease - Alcohol and water What would you consider to be the requirements for any of these treatments? In other words, why and when do you choose one of these treatments over the others? In the case of this Young Chang, the bushings and pins are clean, showing no signs of verdigris. Looking forward to the discussion. -- Geoff Sykes -- Assoc. Los Angeles -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20061030/c404f85f/attachment.html
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