Hi, I have noticed that on some Yamaha Grands, of that vintage. I had to repin the offending flanges. I did notice a blackness at the pin, and assumed that it was a plating from the pin that had deteriorated. After the repining, I have not had any reoffend. Regards, John M. Ross Windsor, Nova Scotia, Canada piano.tech@ns.sympatico.ca ----- Original Message ----- From: "cal munson" <fcm@pop.safepages.com> To: "p" <pianotech@ptg.org> Sent: Monday, November 12, 2001 10:00 PM Subject: mysterious sticking flanges > List, > > I have noticed that sometimes Yamaha grand hammer flanges become very > sluggish after filing or sometimes just lifting them to their furthest > point of travel seems to do it. I've seen this only on the older ones, > say from around the 70's. Does anyone out there know what is causing > this? > > Cal Munson, > Ann Arbor MI > > . >
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