[pianotech] Yamaha U1

[David Love]

I think it has to do with how the keys and/or mortises were cut such they
aren't parallel to the plane on which the key rotates.  That causes a slight
pulling to the right of the key relative to the mortise which wears down the
left side of the mortise more quickly.  If that's the case, you can't do
much about it.

 

David Love

www.davidlovepianos.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Matthew Todd
Sent: Sunday, August 30, 2009 4:58 PM
To: pianotech at ptg.org
Subject: [pianotech] Yamaha U1

 


I recently had a call to fix annoying squeaks that were persistent in a
client's piano.  I discovered that on numerous keys (not all), that one side
(left side) of the balance rail bushing was worn down.

 

Before I go replacing the bushings, what would be the cause of this?  Do you
run across this in this particular kind of piano?

 

Thank you,

TODD PIANO WORKS 
Matthew Todd, Piano Technician 
(979) 248-9578

http://www.toddpianoworks.com <http://www.toddpianoworks.com/> 

 

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