This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment I serviced a 1980s Young Chang 106 cm (42") console today. Lady was = complaining about a number of black notes that would not play after you = played them once (would not repeat after playing softly). I inspected = and sure enough on many of the black notes, when played very = softly/slowly, the jack would not reset back under the hammer butt. Plenty of lost motion. On white notes that reset, some jacks would reset = immediately upon starting to release the key - the hammer would stay up = near the string and the jack would reset immediately - on other white = notes, the jack would reset when the key had fully returned (it would = rely on there being some lost motion). I eased the black keys (some were tight) and weakened the hammer butt = springs and that seemed to help - but I could still make a few of the = notes not reset if I worked them very slowly. I think most of the problem (besides simply being a 1980s YC console) is = that the black keys all have a lead forward of the center rail pin - = pattern leading. These black keys are very front heavy. Most of the = white keys are unleaded (and they repeat just fine). The white keys = require very little weight to push the back of the key down - even a = console wippen could push them down! The black keys require much more = effort to push the back of the key down. I think if today's efforts do not meet her needs, re-leading is the = answer. Piano is not worth a Stanwood approach, but maybe drilling some = 1/4" holes in the black note leads or even removing the leads will make = the key Front Weight more in line with the naturals. Anyone have any thoughts on this situation or direct experience solving = a similar problem. Thanks to any and all of you wonderful Pianotech list enthusiasts! Terry Farrell www.farrellpiano.com ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/a9/40/4a/4b/attachment.htm ---------------------- multipart/alternative attachment--
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