[pianotech] stuck keys after one hour of playing

[Dean May]

Hi Barbara

 

I used to sell Young Changs. I saw the exact symptom lots of times and it
was almost always a tight hammer center. My quick test is to pull the
action, lift the hammers to vertical, then push them down gently until they
fall from gravity. They should drop when you get to about 75 degrees, but
likely you'll find several that won't drop with the rest. If they are really
tight they will just drop slow. 

 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Barbara Richmond
Sent: Tuesday, March 31, 2009 6:01 PM
To: pianotech
Subject: [pianotech] stuck keys after one hour of playing

 

Howdy,

 

I just got a call from a fellow who has an almost 10 year old Wurlitzer
grand (I think it was made by Young Chang--correct me if I'm wrong.).  He
said he's been having some trouble with keys starting to stick <after> he's
been playing for a while--like an hour--and then they just won't go.  We've
made an appointment for me to come out and have a look.  I will check the
action centers & keys for friction levels, of course, but this seems sort of
unusual--well, I've never been witness to such behaviour, anyway.  Has
anyone else experienced such symptoms?

 

Thanks,

 

Barbara Richmond, RPT

near Peoria, IL

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