Gregor, The backcheck may have burnished itself into a hard slippery glaze. Try 60 grit sandpaper to get that off. ---Tom > Tom Gorley > Registered Piano Technician > On Dec 22, 2011, at 8:01 AM, Gregor _ wrote: > List, > > today I tuned a Baldwin from about 1980. With a fortissimo blow there was only a poor checking and therefore some nearly bobbling hammers. I think the reason is that the catcher buckskin and the backcheck felt don´t have a strong enough grip. Or it could be that the overall geometry of the action is not so well designed. There was enough aftertouch and no problem with a piano or forte blow. > > We don´t see many Baldwins here, but I guess in the USA this problem might be well known? The cather buckskin is made of a strange material, no leather. > > Ever experienced that on a Baldwin (about 105 cm height). > > Gregor > > ------------------------ > piano technician - tuner - dealer > Münster, Germany > www.weldert.de -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20111222/67ec517e/attachment.htm>
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