This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Don, I should have added that I have also tried raising the friction as you = suggested. I've gone both ways with this. They still don't work -- at = least not reliably. Not all Baldwin actions respond this way. Just the occasional one. I = suspect there is something very marginal in the geometry of this = 'design' that works most of the time, but when something gets a bit off = it doesn't quite balance right. =20 As I said, next time I come across one of these... Del -------------------------------------------------------------------------= ------- ----- Original Message -----=20 From: Donald Mannino=20 To: pianotech@ptg.org=20 Sent: October 04, 2000 8:33 AM Subject: Re: Spring Conundrum - update Matt, I didn't notice if anyone suggested repinning the repetition lever = tighter. This symptom in a Baldwin action can be caused by excessively = low friction. When the hammer center, knuckle friction, and rep lever = friction are all low, they will do this. The best place to add the = friction back in is at the repetition lever center pin. You should measure about 4 grams of friction at the rep lever skin (at = the drop screw) with the spring disengaged, wippen held sideways. If = the friction is very low here, the rep spring regulation will be = problematic like you have described. As Del said, the action will still work, but if you get it to stop it = should work better. Set the backcheck regulation as high as you can = without grabbing on hard blows, too. Don Mannino RPT ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/7b/8b/31/4e/attachment.htm ---------------------- multipart/alternative attachment--
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