Factory key weights

[Howard S. Rosen]

I vaguely recall reading some criticism re: the routine system if
individual lead weights for key leveling. Can you tell us what the
technical problems are if any?  Thanks.

Howard S. Rosen, RPT
Boynton Beach, Florida

----------
> From: Norm Barrett <barre46@ibm.net>
> To: pianotech@ptg.org
> Subject: Re: Factory key weights
> Date: Saturday, October 04, 1997 1:35 AM
> 
> I do not see a copyright notice in the Kimball Grand Regulation book so
here
> is their instructions for a key weight.
> 
> List of Materials:
> 1 pc. 3/8 dia. all thread x 20" long
> 2 ea. washers 1" o.d. x 3/8" i.d.
> 220 ea. washers 1 3/8" o.d.x 5/8" i.d.
> 2 ea. hex nuts for the 3/8 all thread
> 
> Put all the 1 3/8 washers on the all thread.
> Put one 1" washer on either end and thread on the hex nut until all the
> washers touch one another, but are still able to slide up and down.
> 
> With the action stack removed lay this weight across the back of a
section
> of keys when doing the key height/key level operations in place of the
usual
> clip on lead weights.
> 
> I have made one of these up and it works quite well. If you wanted to
work
> more than one section at a time you could make up more weights.
> 
> Norm Barrett
> Memphis, TN
> 
> Richard Anderson wrote:
> 
> > Hi List,
> >
> > Some factories use a long rod filled with flat washers to lay across
the
> > back of the keys to weight them down for leveling and dipping. Does
> > anybody know the proper size of washer and rod to provide enough weight
> > and travel for eack key?
> 
>