Slow Hammer Return

[piannaman at aol.com]

-----Original Message-----
From: pianotune05 <pianotune05 at comcast.net>
To: Pianotech List <pianotech at ptg.org>
Sent: Sat, 3 Jun 2006 21:38:11 -0500
Subject: Re: Slow Hammer Return


>>Is slow hammer return related to lost motion in terms of how to correct it?
Marshall>>
 
Marshall,
 
It might be, but only if it's negative lost motion.  If the hammer butt is resting on the jack with, the jack may have trouble getting back under the butt.  This can cause sluggish or non-repeating notes.
 
Dave Stahl
----- Original Message ----- 
From: Michelle Smith 
To: 'Pianotech List' 
Sent: Saturday, June 03, 2006 3:00 PM
Subject: RE: Slow Hammer Return


“If you are sure” is something I can’t be sure of yet in this new endeavor.
 
Other than the slow return of the hammers, everything is functioning normally.  The notes still play, they’re just losing energy because they can’t get back to the rest rail.  
 
Are there any other causes I should look for before I try soaking?
 
Thanks very much!
 
Michelle
 



From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Farrell
Sent: Saturday, June 03, 2006 1:56 PM
To: Pianotech List
Subject: Re: Slow Hammer Return
 
If you are sure it is the hammer butt/flange action centers that are slow, on a piano like this, I recommend removing action and soak action centers with about a 50/50 mix of alcohol and water. Let dry overnight - do not blow dry with heat. 90% of the time this will free up all the action centers.
 
Lots about this in the archives.
 
Terry Farrell
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