STRING COVER+FIRMER TOUCH

[Fenton Murray]

Looks like fun, and I can see by the fork at the back of the key that this
is one fine piano. I don't think it's a waste of time, hardest part of the
job is probably getting the grommets on and off.
Fenton
----- Original Message ----- 
From: "Jon Page" <jonpage at comcast.net>
To: <pianotech at ptg.org>
Sent: Saturday, March 10, 2007 8:04 AM
Subject: STRING COVER+FIRMER TOUCH


> Figuring where to place the lead is easy if you have a scale.
>
> Measure average DW on sample sharps and naturals.
> The difference is the amount of back lead to place in the naturals.
> If the sharps measure 58 g DW and the naturals 52g, 6 g worth
> of back lead is required (-6 FW) to bring them up to 58g.
>
> Measure and note FW average on a few naturals. Tare the scale
> and locate a lead behind the balance rail until it reads the difference.
> I have found it to be 6 g usually.
>
> If the average FW on the naturals was 11g and you lightened them
> by 6 g, the new FW is 5g.  Place A0 and C8 on the scale and locate
> one or two leads behind the b/r to effect 5g FW.
>
> Attached is a photo of an eyeletter which I purchased from a used
> tool store (gotta love these places).  I can adjust the length of the
> plunger to swage the lead efficiently.
>
> Drilling and swaging: 45 minutes.  In shop, keys removed that is.
> -- 
>
> Regards,
>
> Jon Page