Lost Motion Compensator & Regulation

Joey Recker joey@onkeypianotuning.com
Thu, 16 Oct 2003 19:08:18 -0400


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I have an old upright with a lost motion compensator.  I've done alot of
repair to the action (taken it completely apart, re-pinned, replaced and
re-assembled).  I am now ready to regulate it.  
 
Is there anything special I need to do during the regulation for the
lost motion compensator?  
 
This piano is mine and I want to improve my regulating skills.
Therefore, I intend on being super fussy on every step and doing every
step several times.  In reading books on regulating I don't see any
mention of a lost motion compensator, but mine has a bar which goes up
to the hammer rest rail.  These bars can be adjusted a good bit with the
use of a set screw at the mounting point.  When I took it apart I didn't
mark it to note where it was set (stupid) but there has got to be some
measure of exactly where the lost motion compensator should kick in, and
in what order should I insert this step in the regulation procedure.  (I
intend to follow the 25 steps in REBLITZ (page 37).
 
Thanks in advance for your input.
 
Joey


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