[pianotech] sticking key

[Marcel Carey]

Martin, if you read Ed's post again, you will notice that the complaint was that a note was sticking "when the pedal was used".

 

Now this indicates that without the damper's help to push the back of the key down, the key stays down.

On this particular brand of piano, the culprit is probably the hammer flange center-pin. And the fun thing is that

when you get to the piano it won't do it at first, but after playing for a while it seems to heat up and stick.

Play the piano for a while and then take the action out. Raise all the hammer shanks 90 degrees, slowly push them back

and watch them fall. You will find out which ones are problematic.

And when you find out which ones are, REPIN. lubrication won't work on the long run.

 

Marcel Carey,

Sherbrooke, QC
 


From: pianodoctor at msn.com
To: pianotech at ptg.org
Date: Thu, 22 Oct 2009 21:47:01 -0400
Subject: Re: [pianotech] sticking key



Most likely he means the damper is sticking up on a particular note.

> Date: Wed, 21 Oct 2009 20:48:00 -0500
> From: mike.spalding1 at verizon.net
> To: pianotech at ptg.org
> Subject: Re: [pianotech] sticking key
> 
> Ed,
> 
> Did the player describe precisely is meant by "one of the notes sticks" 
> ? You'd be amazed what a wide range of malfunctions is included in this 
> general description.
> 
> Mike
> 
> Ed Carwithen wrote:
> > The piano is a small (4'5") Wurlitzer grand. I tuned it in August. 
> > The player is complaining that one of the notes sticks when the damper 
> > pedal is in use. Can anyone think why this might be happening? I'll 
> > be going back to check it in a couple of days.
> > 
> > Ed Carwithen
> > John Day, OR
> >
> >



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