Do you have a balance rail hole reamer (KCS-1B in the Pianotek Supply catalog, also available from Renner)? Proper use of this tool may be your answer. Or not. I haven't worked on post Thomaston (?) GA P22s, so I'm just taking a stab at your question. Good luck! Patrick On Mon, Feb 14, 2011 at 9:26 PM, Dave Bunch <davebpiano at gmail.com> wrote: > A couple of weeks ago I serviced a new Yamaha P22 at a school I tune for, > the vocal teacher having complained of many sticky keys. And she was right. > Probably a half dozen were not returning at all and the rest all had excess > friction to varying degrees. There was tightness at the front rail bushings > as well as the balance rail, so I eased every bushing and applied ProTec to > all key pins. Also checked the action centers and found no excess friction > there. Then I checked and double checked all keys with the sustain engaged > and releasing the keys slowly. I wanted to be thorough since this school is > an hour away. I get a call today that just two days after I worked on this > piano, the keys were sticking again, just as bad as before! I can't hardly > believe it but I'm going to take her word for it. Has Yamaha changed > anything in their new pianos? Different bushing cloth our something? I am > probably going to have to eat this next service call so I want to get it > right. Am I missing something? > > Dave Bunch > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110214/361766cd/attachment.htm>
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