damper mechanism squeaks....argh!

[piannaman at aol.com]

I didn't mention that I could get the mechanism to squeak...with the action outside of the piano.  It is definitely something in the action itself.  
 
I am convinced that whatever felt is on the damper levers is getting too much friction from the damper lift rod.  I will try the McLube suggestion from Paul McCloud.  
 
It isn't case parts, of that I am sure.  Everything else has been lubricated and/or tightened.
 
Dave Stahl

Dave Stahl Piano Service
650-224-3560
dstahlpiano at sbcglobal.net
http://dstahlpiano.net/




 
 
-----Original Message-----
From: pianotech at a440piano.net
To: pianotech at ptg.org
Sent: Thu, 21 Dec 2006 12:00 PM
Subject: Re: damper mechanism squeaks....argh!


Dave,
 
If this piano has a pedal prop bolt that connects the trap lever to the pedal itself, check where the bolt runs through the pedal.  I have encountered squeaky groans at that interface, when the bolt rubs on the sides of the hole in the pedal.  My remedy is to remove the pedal, enlarge the hole slightly, and bush it with leather.
 
Best,
William R. Monroe
 
 


 Hi All,
 
I thought I could solve any damper pedal mechanism squeak, and up until recently, I've had pretty good luck.  Then I met a recent model Hallet-Davis (Dongbei built, I believe) upright.  
 
I lubricated and tightened everything I could think of. 
 
Dave Stahl
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