[pianotech] Fractured Keystick

David Love davidlovepianos at comcast.net
Wed Dec 3 15:08:34 PST 2008


The main thing is to be sure that you don't reglue the key back together at
an angle.  If the fracture has enough surface area you often don't need a
piece of veneer.  You might try to dry assemble the key and gently put it on
the balance rail pin to see if the front is the same height as the others to
be sure you don't have an angle there.  If it matches, gently take the key
off the balance rail and set it on a flat surface.  If in fact the key is
flat, then apply glue trying to keep it out of the balance rail hole (and
off the bushing of course), set the key on a sheet of wax paper on the same
flat surface to be sure you got the joint back together correctly  lightly
clamping the key to the table to keep it flat and to make sure the button
joint is tight and let the glue set up for 30 minutes.  You can then can
gently lift the key and clean out any squeeze out that may have gotten into
the balance hole.   Titebond is nice because it sets up quickly and will be
stronger than the wood when it sets up.   If the break doesn't have enough
surface area then glue on a piece of veneer at this point.  A thin piece of
maple veneer available commercially works well.  After the veneer dries
(15-20 minutes) you should be able to replace the key.  Tell them not to
play it for 24 hours.   

 

 

 

David Love

www.davidlovepianos.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Matthew Todd
Sent: Wednesday, December 03, 2008 1:20 PM
To: pianotech at ptg.org
Subject: [pianotech] Fractured Keystick

 


Hello list,

 

I need to repair a fractured keystick on a clients piano.  There is a
fracture on both sides in the area below the button.  The front of the
button has come unglued as a result.  My fix was going to be try to get as
much wood glue in the fracture and under the key button as possible, then
get a thin piece of veneer and glue on each side of the keystick, clamp and
dry.  Then sand the sides to fit once installed back in the piano.

 

Yes or no?

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

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

 

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