This is a multipart message in MIME format ---------------------- multipart/alternative attachment Lance: If let-off is generous you can raise the drop a little to lessen= this effect. Setting drop early compresses the spring and can= make this bump even harder. dave __________________________________________ David M. Porritt, RPT Meadows School of the Arts Southern Methodist University Dallas, TX 75275 dporritt@mail.smu.edu ----- Original message ----------------------------------------> From: llafargue <llafargue@charter.net> To: <caut@ptg.org> Received: Tue, 27 Jul 2004 21:23:13 -0500 Subject: Yamaha C3 regulation List, I have a customer with a Yamaha C3 that=92s 4 years old. It is= like new, very slight knuckle/hammer wear, but really good= shape. I have regulated it and everything seems great except= that the let-off bump feel seems excessive and I can=92t figure= out why, on this C3. I have lubed everything, knuckles with= Teflon, McLube to all key pins, whippen/jack tops, etc, but when= the jack lets off, you really feel it. Also, when playing= pianissimo, at the point of let-off, there is a definite wall= that you hit and it actually prevents some notes from releasing.= I am wondering what aspects of regulation affect this. Or is= there something else I am missing? Let-off is about 1/8=94 to= 1/16=94 graduated, drop a little more than that, checking is= close; rep springs are not too strong. Knuckle and jack top= shape seem normal. Thanks. Lance Lafargue, RPT LAFARGUE PIANOS New Orleans Chapter, PTG 985.72P.IANO llafargue@charter.net ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/6e/1e/0b/f4/attachment.htm ---------------------- multipart/alternative attachment--
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