any way to soften grand knuckles?

[Dean May]

Put a center pin in some needle nose vise grips and clamp it down tightly.
Stick the pin between the buckskin cover and the inner felt of the knuckle,
then move the pin all the way around the circumference of the inner felt,
pulling out on the buckskin as you go. You are trying to stretch the
buckskin out a little, and separate any bonding with the inner felt. 

 

You can also use a voicing needle on the inner felt to soften it. 

 

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 Mark McConnell
Sent: Friday, February 15, 2008 11:40 PM
To: pianotech at ptg.org
Subject: any way to soften grand knuckles?

 

I have a customer with a Baldwin L grand nicely restored in 1980. The
hammers are in good condition, but the knuckles make a very 
loud clicking when they fall back onto the jacks. The knuckles are of the
old type where they can't be removed and replaced with new ones (the
wood in the knuckle center points backwards towards the keyboard rather than
straight down). Does anyone have any ideas on how to reduce the
clicking, maybe some way to soften the knuckles? 
Thanks.
Mark


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