Removing Sticking Damper Underlevers on Asian Grands

[Avery]

Rick,

At 07:55 AM 11/10/2006, you wrote:

I was going to say the same thing but Marcel beat 
me to it. Put them under a microscope or 
something and you'll see a lot of tiny "flakes". 
The only way to solve it is to either replace 
everything or pull everything out and repin. It 
might also be good to rinse out the bushings with 
something. Acetone? I'm not sure.

Avery

>
>But, I know you don't want to hear it, but, if 
>you had a problem with one or two notes, I could 
>bet the problem will come back to haunt you on 
>other notes. It is sometimes the longer road 
>that brings the best result. Some of these 
>pianos had plating problems with the center pins 
>and there is only one solution:  repinning. Sorry for the bad news.
>
>Marcel Carey, RPT
>Sherbrooke, QC
>-----Message d'origine-----
>De : pianotech-bounces at ptg.org 
>[mailto:pianotech-bounces at ptg.org] De la part de Rick Bazemore
>Envoyé : 10 novembre 2006 07:32
>À : pianotech at ptg.org
>Objet : Removing Sticking Damper Underlevers on Asian Grands
>
>OK, I've now been stumped twice on this 
>particular problem by two fairly new Korean 
>grand pianos.  I'm convinced the problem is the 
>underlever, but cannot get the XW#@ things out 
>to rebush and repin them.  The last time, I was 
>able to unscrew the offender and bring it 
>forward (but not all the way out of the damper 
>underlever system) enough to douse it with 
>lubricant.  And it worked wonderfully for about 
>two weeks - but just got the email this morning 
>that it is sticking again.  Help please on how 
>best to go about getting these little devils all 
>the way out of the piano to correctly deal with 
>them.  Please don't tell me that I'm going to 
>have to remove the entire damper system...
>
>Rick Bazemore, RPT
>Social Circle, GA
>www.pianosintune.com
>
>
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