Hi Ken, I realize the horse is out of the barn already, but, FWIW, while Protek Prolube works on guide rails, I find I get a longer lasting effect by removing the dampers and using teflon powder in the bushing felt. William R. Monroe On Thu, Nov 18, 2010 at 10:04 AM, Ken & Pat Gerler < kenneth.gerler at prodigy.net> wrote: > Follow up on "brush noise" on dampers lifting. > Yesterday I saw this piano for routine tuning and had a chance to work on > the "swishing" noise when the damper pedal was depressed. When just a short > section of dampers were blocked using the Sustenuto pedal, the amount of > "swishing" noise was reduced. I did retreat the felt in the damper lift tray > with "Protek" and could tell the capstan screws were quiet. Using "Protek", > I treated the top and bottom of the damper guide rail bushing and finally > cleared the problem. Now all you hear is the "normal" sound of the dampers > lifting from the strings. Thanks to Paul Bruesch for his comments. > > Ken Gerler > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20101118/fbd68a72/attachment.htm>
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