Renner repetition springs

Topperpiano@aol.com Topperpiano@aol.com
Fri, 14 May 2004 08:48:19 EDT


---------------------- multipart/alternative attachment
I have always been pretty careful to have the rep lever pinned also somewhere 
between 6-7 grams.  Pinning of course if a whole "nuther" subject but 
consistency is the key.  If the rep is too fast then the spring naturally gets 
regulated to a more weak position, and on Steinway whippens affects the jack return 
ability.  If the spring is too weak the jack is slow.  In my experience the 
only way to get better repetition is to increase the friction of the rep 
pinning. All of this can get muddled if the spring slot is full of gunk and not 
milled properly.  My recent complaint about the milling of the slot is that too 
many of the new ones that I see have some roughness that has to be removed and 
then relubricated.  Also occasionally the springs are too long in the jack 
causing it to hit the back of the jack, slowing things down considerably. Ok, I'll 
add that if in regulating someone has pulled the springs out to the side too 
far that occasionally the spring will be riding at a slight angle in the slot 
with the front and back of the curve of the spring riding on the sides of the 
slot instead of the center. While I'm at it, I also resurface all the NY parts 
on the repetition lever window and the jack top, front and tails.  I use 1200 
paper and then reapply a lubricant like McLube.  If you use an old fashioned 
burnisher for this after the paper you will crush and harden the surface of the 
jacks and reps making a very smooth surface which I have found is very 
noticeable by pianists. Oh well could go on but .......TP

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/a2/2e/93/f2/attachment.htm

---------------------- multipart/alternative attachment--

This PTG archive page provided courtesy of Moy Piano Service, LLC