Or, in just the last two weeks, I had a jack that was "off center" enough that it was rubbing slightly on the repetition lever and was slow to return. A trick to help that without repining (if the action parts are still "new") is to: 1.) remove the whippen from the piano; 2.) have a small block of wood with a sharp corner; 3.) since the action is out of the keybed, use that as a bench 4.) rest the part of the whippen that supports the jack on the edge of the above mentioned block and on the opposite side from where it is rubbing. 5.) with another piece of heavier material resting on the top of the jack, give it a slight tap with a small "hammer shaped object". 6.) If one tap doesn't correct your problem, give it another tap or two. It worked twice for me in the last couple of weeks. If the above is not clear, let me know and I'll try to take a picture of the operation. Ken Gerler kenneth.gerler at prodigy.net ----- Original Message ----- From: "Jon Page" <jonpage at comcast.net> To: <pianotech at ptg.org> Sent: Saturday, February 13, 2010 4:43 PM Subject: Re: [pianotech] Advice about intermittent note on Yamaha grand >A sluggish jack can be freed by applying a drop of Goose Juice > or Protek to the center pin. If that doesn't work, check spring tension > and jack position. You might even have to repin the jack. > -- > > Regards, > > Jon Page
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