Hi Dan, I had polished the spring after sanding the edges with a fine paper to de-burr. It was the spring groaning at the point when the frame had almost reached end of travel, and again upon release of the pedal. Forgot to mention I had put DAG on both the spring and key-frame, its the polished graphite against polished graphite (I believe) made things worse. Mark -----Original Message----- From: owner-caut@ptg.org [mailto:owner-caut@ptg.org]On Behalf Of thepianoarts Sent: Tuesday, November 21, 2000 8:44 PM To: caut@ptg.org Subject: Re: S&S: key-frame return spring Hi Mark, I am sure you have located the source correctly, but after much trial and error, mostly error, I now treat the back verticle edge of the key frame where it could touch the dags, etc. Sanding would work too. It is a tough one (noise) to trace, but common. Just courious... Was the spring singing, or the wood frame resonating? (How about polishing the spring?) Dan Reed Dallas
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