Damnper

[Porritt, David]

Check the pinning of both the wippen and the jack.  My suspicion is that
one (or both) of those is tight but when you're not using the damper
pedal the damper lever nudges the spoon to return the wippen.

 

dp

 

____________________

David M. Porritt, RPT

dporritt at smu.edu <mailto:dporritt at smu.edu> 

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On
Behalf Of Alan Barnard
Sent: Friday, February 01, 2008 3:24 PM
To: pianotech at ptg.org
Subject: Damnper

 

Nice little Kawai CE-7 in like-new condition, all clean and well
regulated. Customer complains of a key (G2) that sticks. 

1. It does, occasionally, stick but only if you hold down the sustain
pedal and then play the note. 
2. The key releases/resets when you lift the sustain pedal.
3. It is NOT the keystick or rail bushings. You can remove the keystick
and still make it fail just lifting the whippen--but only if the sustain
pedal is down. So ...
4. It is not a capstan height issue, either.
5. Examined the damper felt and the spoon, they are like new. Flanges
seem plenty mobile.
6. The damper, itself, does not seem to interfere with its neighbors;
nor does it lift any earlier or later.

Actually, she would hardly have noticed it, since it only sticks when
you theoretically want the note sounding, anyway; but she overuses the
sustain mightily. (Chord change? What chord change?)

Any ideas would be appreciated 

Alan Barnard
Stumped in Salem, MO

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