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