This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Hello- Blubbering (double striking) hammers in a vertical are not all that = uncommon, but today I found a cause that I don't remember seeing before. It was a new Baldwin Hamilton studio sized piano. The customer was = complaining that several notes in the low tenor area were not = sustaining. When I got there I found that these few notes were double = striking and sounding like they were blocking when played lightly. = Actually anything up to a light/moderate keystroke. I checked the position of the let off rail and regulation in general. So = far things looked fine. Moving the key down slowly produced let off at = about 1/8" and there was sufficient key dip for plenty of after touch. = Back checking was fine. I went to the worst one and to satisfy my = curiosity, cranked the button down to where let off was about 1/2". This = changed nothing. The hammer was still bouncing off the top of the jack. = Only on a very firm stroke would everything cycle through as it should. = Most of the piano was just fine. It was these few notes. Well, it only took about five minutes to figure it out, but it was a = long five minutes with the customer watching. Anyone want to guess on = this one? Dave Bunch ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/24/94/10/0d/attachment.htm ---------------------- multipart/alternative attachment--
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