> Date: Thu, 16 Jan 1997 21:32:03 -0500 (EST) > From: Hrschm@aol.com > Subject: strings cannot be tuned! > To: pianotech@byu.edu > Reply-to: pianotech@byu.edu Russell, Could be the pinblock isn't pulled up tight against the plate. Consider tightening all the plate screws including the ones into the pinblock. I had a stability problem on a Yamaha C7 some years ago and the factory recommended letting the tension down and tightening all the plate screws. It worked! ilvey, RPT Pacifica, CA > I service a Howard Grand piano. The owner told me when I started > tuning for him that there were three notes in the upper treble that would > not stay in tune . He mentioned that there had been a string or two replaced > on those notes so I thought it must be going out of tune before the rest of > the piano because of the new strings streaching . However, I had a terible > time tuning these notes . they are the G6 , G#6 , and A6 . The G and G# are > the two notes to the Left of the highest plate strut and the A > is to the Right of the strut . Each time I would tune these notes a good test > blow would knock them out again. Even trying to anticipates how much the test > blow would drop the > pitch of the note did not help. After about 15 minutes on these three notes I > was somehow able to stabalize them and the owner said they stayed in tune > longer than usual. On my next visit it was even worse . I must have spent 20 > minutes trying to tune these notes and when they were stabalized the unisons > did not match well. > > The bridge looks fine and the coils on the tuning pin looks good. I > suspect because the notes are all beside each other and they are on either > side of a plate strut that the problem is not in the strings but in the > structure of the piano in this area . only these notes are a problem . Does > anyone have any ideas as to what might be going on here > I would greatly appreciate any input anyone might have > > > Russell Schmidt R.P.T. > > Lexington , KY > > ilvey, RPT Pacifica, CA
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