Denis Could it be that the changes humidity cause the wood the contract enough so that the flange becomes loose, even in just a few hour hours. John recommended putting a washer under the screw. I wonder if not just a regular washer, but a split washer would be better. Willem (Wim) Blees, RPT Piano Tuner/Technician Mililani, Oahu, HI 808-349-2943 Author of: The Business of Piano Tuning available from Potter Press www.pianotuning.com -----Original Message----- From: denisikeler at aol.com To: caut at ptg.org Sent: Fri, Jul 10, 2009 1:57 am Subject: [CAUT] Wandering Hammers List, At the Flint School Of Performing Arts, I have a Baldwin SD that the hammer spacing will not stay put.? About?7 years ago I put hammers shanks and flanges in it.? I used Renner USA shanks and flanges.? The problem is, no matter how hard you tighten the flange screw, the hammers eventually move left or right after a few hours of heavy playing.? Some of my Ideas are: 1. replace the sandpaper on the rest rail with a heavier grit, which might necessitate a slight let off and drop adjustment. 2. the flanges have that little "notch" in the back, so I thought installing bridge pins through the notch right into the rest rail. ??? I used to have a 9' Bechstein that I took care of that had the same. 3. remove a small amount of wood under the flange, so that tightening the screw would transfer some of the grip out to each end of the flange.? My least favorite option. Any of you ever had this problem?? Any help is appreciated. Denis Ikeler An Excellent Credit Score is 750. See Yours in Just 2 Easy Steps! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20090710/9c0af537/attachment-0001.htm>
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