<HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:o == "urn:schemas-microsoft-com:office:office" xmlns:w == "urn:schemas-microsoft-com:office:word" xmlns:st1 == "urn:schemas-microsoft-com:office:smarttags"><HEAD> <META http-equiv=Content-Type content="text/html;= charset=us-ascii"> <META content=Word.Document name=ProgId> <META content="Microsoft Word 10" name=Generator> <META content="Microsoft Word 10" name=Originator><LINK= href="cid:filelist.xml@01C4741F.EC751200"= rel=File-List><o:SmartTagType name="PersonName"= namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:Sm= artTagType><o:SmartTagType name="City"= namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:Sm= artTagType><o:SmartTagType name="place"= namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:Sm= artTagType> <STYLE> st1\:*{behavior:url(#default#ieooui) } </STYLE> <STYLE>  </STYLE> </HEAD> <BODY lang=EN-US style="tab-interval: .5in" vLink=purple= link=blue> <DIV class=Section1> <SPAN= style="FONT-SIZE: 10pt; FONT-FAMILY:= Arial">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 <A= href="mailto:dporritt@mail.smu.edu">dporritt@mail.smu.edu</A></P= >   ----- Original message= ----------------------------------------> From: llafargue= <<A= href="mailto:llafargue@charter.net">llafargue@charter.net</A>&gt= ; To: <<A= href="mailto:caut@ptg.org">caut@ptg.org</A>> Received:= Tue, 27 Jul 2004 21:23:13 -0500 Subject: Yamaha C3= regulation <SPAN= style="FONT-SIZE: 10pt; FONT-FAMILY:= Arial"> List,<o:p></o:p> <SPAN= style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><SPAN= style="mso-spacerun: yes"> I have a customer with a= Yamaha C3 that’s 4 years old.  It is like new, very slight= knuckle/hammer wear, but really good shape.<SPAN= style="mso-spacerun: yes">  I have regulated it and= everything seems great except that the let-off bump feel seems= excessive and I can’t figure out why, on this C3.<SPAN= style="mso-spacerun: yes">  I have lubed everything,= knuckles with Teflon, McLube to all key pins, whippen/jack tops,= etc, but <SPAN= style="FONT-STYLE: italic; mso-bidi-font-style: normal">when the= jack lets off, you really feel it. <SPAN= style="mso-spacerun: yes"> 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. <SPAN= style="mso-spacerun: yes"> Or is there something= else I am missing?  Let-off is about 1/8” to 1/16” graduated, drop= a little more than that, checking is close; rep springs are not= too strong.  Knuckle= and jack top shape seem normal.  Thanks. =  <o:p></o:p> <SPAN= style="FONT-SIZE: 10pt; FONT-FAMILY:= Arial"><o:p> </o:p> <st1:PersonName>Lance= Lafargue</st1:PersonName><SPAN= style="mso-no-proof: yes">, RPT<o:p></o:p> <SPAN= style="FONT-SIZE: 12pt; mso-no-proof: yes">LAFARGUE= PIANOS<SPAN= style="FONT-FAMILY: 'Bradley Hand ITC'; mso-no-proof:= yes"><o:p></o:p> <st1:City><st1:place>New Orleans</st1:place></st1:City><SPAN= style="mso-no-proof: yes"> Chapter, PTG<o:p></o:p> <SPAN= style="FONT-SIZE: 12pt; mso-no-proof:= yes">985.72P.IANO<o:p></o:p> <st1:PersonName><SPAN= style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-no-proof:= yes">llafargue@charter.net</st1:PersonName><SPAN= style="mso-no-proof: yes"><o:p></o:p> <SPAN= style="FONT-SIZE:= 12pt"><o:p> </o:p></DIV></BODY></HTML>