[pianotech] hammer return noise

[Gerald Groot]

How about key pulley?  

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Gene Nelson
Sent: Monday, March 01, 2010 9:55 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] hammer return noise

 

Hello Jer,

Thanks for your reply.

The whippens are new and the let off button felts are new as well. 

Fact is that I can depress the key only a mm or two, just enough to lift the
hammer - let it fall and get unwelcome noise on many keys. The jack is not
being engaged nor is the drop screw nor does the hammer fall hard enough to
touch the rest rail.

Today I was able to quiet several - mostly by refining jack knuckle
alignment and slightly rounding the far edge of the jack top.

Still have a few things to try.

Gene

----- Original Message ----- 

From: Gerald Groot <mailto:tunerboy3 at comcast.net>  

To: pianotech at ptg.org 

Sent: Monday, March 01, 2010 6:09 PM

Subject: Re: [pianotech] hammer return noise

 

Hi Gene,

 

I haven't had time to read everything but, I haven't (unless I missed
it-probably did-) noticed that you checked the felt that the jack hits upon
returning. If it is worn, hard or compacted, it too, could possibly be the
problem?  Have you doodled around with the jack tender just slapping it back
and forth to see if anything in that area is noisy?  Just another thought.

 

Jer

 

 

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