This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Young Changs are pretty bad about developing hammer centers that are too = tight. I guarantee that is the culprit on the problem you are = describing. You can also bet there are others close by that are too = tight also, just not as severe. With the action removed, lift the = hammers up to 90 degrees, to the point where they will remain if you = take your hands off. Then gently push them back towards rest, say 75 to = 80 degrees, until you reach the point where gravity takes over and they = fall on their own accord. This simple test will quickly show which = centers are too tight; they will show up as those who will withstand a = more severe angle, say 60 to 75 degrees, before they will fall. = Eventually after doing enough of these you will start to get a feel for = it. If in doubt, go ahead and remove the hammer and do the swing test. =20 Ream the bushings and repin. Protek the rest and brush Teflon on the = knuckles. That should bring back some power. =20 Dean =20 Dean May cell 812.239.3359 PianoRebuilders.com 812.235.527 Terre Haute IN 47802 =20 =20 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/a3/ca/fb/b6/attachment.htm ---------------------- multipart/alternative attachment--
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