Major Grotrian problem

[Ajay Mistry]

 --- Joseph Garrett <joegarrett@earthlink.net> wrote:
> Ajay said: "also I changed the key leads which were
> made by me
> > here in my workshop now I am finding a major
> problem
> > when I fitted the new hammers to the action & play
> the
> > notes bass particularly the key stays depressed &
> > hammer in mid air when I lift the key with my hand
> the
> > hammer falls checked the bushings loose enough
> none of
> > the keys are touching each other I think the leads
> > have become to heavy how do I rectify this have
> heard
> > of up-weight & down-weight how do I calculate that
> can
> > any one explain the procedure to me & how much
> should
> > there be on this piano."
> 
> I think the key, (pun intended), is that he made his
> own key leads. If he
> used, basically, pure lead, (which I suspect), then
> it would quite possibly
> be much heavier than the original "leads", which
> probably had a lot of Zinc
> incorporated in it's composition. An example: I have
> two sets of key
> leveling, clip on, leads. One was made by Tuners
> Supply and had a lot of
> Zinc , (like wheel weight stuff). The other set I
> got from APSCO and it
> appears to be much heavier! I grammed each and found
> that the Tuners leads
> are 72 grams. Whereas, the APSCO leads are 90 grams!
> I use the lighter ones
> on the sharps and the heavier ones on the whites.
> These thingees are
> essentially the same physical dimensions. So,....it
> really matters what the
> lead composition is. Our, (piano techs), basic
> nature is to pay attention to
> DETAIL, so this is another DETAIL to put in our
> coffers.<G>
> Best Regards,
> >
> 
> Joe Garrett, RPT, (Oregon)
> Captain, Tool Police
> Squares Are I
> 
Hi Joe I did use pure lead no traces of Zinc but I do
have all the lead that was originally present in the
keys with me still I preserved it didnt know what made
me do it but I did keep it all.

                 Regards
                               Ajay.
> 
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=====
Ajay Mistry

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