Thank you Tony. I goofed, you are right, I only need to replace the flanges, not the whole butt. Thanks. I'll try the little thing after check - the little second sounding of the strings. Get some sleep. Terry Farrell ----- Original Message ----- From: "Tony Caught" <caute@optusnet.com.au> To: <pianotech@ptg.org> Sent: Thursday, August 23, 2001 8:34 AM Subject: Re: Yamaha Butt Spring Cord > Hi Terry, > > I'm tired, just driven 1,500 kilo in 15 hrs but, and I can't play either. > > If the cord or spring is broken:- After the note is in check and you lift > your finger slightly of the key the not (action) goes out of check. At this > point (because the weight of the upright hammer in this position has no > backward weight) the pressure of the jack on the hammer butt is enough to > push the hammer forward and onto the string making a little note playing by > itself. Also required to assist the hammer of the string faster than just > the bounce. Also to give some resistance to the hammer. > > If you don't get the right answer I will two finger type a detailed > explanation. Maybe. > > Buy the new flanges from Yamaha (relatively cheap) Change all flanges, (very > little travelling to do) reface the hammers (most likely needs it anyway) > and align in piano. > > 6 Hrs > > Tony > > > > ----- Original Message ----- > From: Farrell <mfarrel2@tampabay.rr.com> > To: <pianotech@ptg.org> > Sent: Thursday, August 23, 2001 9:22 PM > Subject: Yamaha Butt Spring Cord > > > > We all have seen the broken cords on the hammer butt springs on Yamaha > > uprights. Perhaps many of us have replaced a set. I have several Yamaha > > uprights with this condition (several to many broken cords) in my service > > clientele. I don't play. I tune them. I hit the key and the hammer > returns. > > So what difference does the spring/cord make? I can see that if you had > slow > > action centers, it would make a difference, or if you were an advanced > > pianist, the quicker returning hammer might make a difference. I guess a > > broken cord should also cause a reduction in downweight and a decrease in > > upweight, and therefore an overall decrease in performance, i.e. less > > expression control because of too light a downweight and slower repetition > > because of slower key return. > > > > Hmmmm. Did I just answer my own question? I think I may have. Anything > else > > I have missed? Thanks. > > > > P.S. how many hours do ya'll figer to replace 88 butts, align hammers & > > travel? Maybe 12 to 14 hours? Has anyone any experience with other hammers > > on Yamaha uprights? > > > > Terry Farrell > > > > > >
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