Pressing the damper pedal while diagnosing friction problems is the best way to find them. If the key stays down, that is an indication of too much friction, or a hammer spring is broken/unhooked. See that the key is moving freely. If the hammer returns to the rest rail slowly, but the key and wippen move simultaneously, it's the hammer flange. If the hammer returns quickly, with a little bounce, but pressing the pedal makes it hang up, it's the wippen flange ----- Original Message ----- From: To: l-bartlett at sbcglobal.net;pianotech at ptg.org Sent: 03/01/2009 7:49:28 PM Subject: Re: [pianotech] key problem The problem will most likely be a tight wippen flange. Wim -----Original Message----- From: Leslie Bartlett <l-bartlett at sbcglobal.net> To: pianotech at ptg.org Sent: Sun, 1 Mar 2009 5:36 pm Subject: [pianotech] key problem I have to face a Falcone upright later this week on which a key "occasionally sticks, but only when the damper pedal is pushed." As I recall from years ago, there is an "obvious" answer to that problem, but haven't faced such in more than a decade, so have lost it....... Can someone solve my tiny problem? thanks les bartlett A Good Credit Score is 700 or Above. See yours in just 2 easy steps! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090301/e9adf764/attachment.html>
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