Key Lead Replacement

[David Ilvedson]

Since it is a Yamaha, you might just see if you can get lead from them that would duplicate it...30 years old...maybe not but worth a shot.   

I'm thinking this would be a good time for a shop assistant to make things move faster...



I've got the same problem on a 50 Petrof...all the keys AND the underlevers.   I've been trying to figure out how many hows to estimate...?



David Ilvedson, RPT

Pacifica, CA 94044









Original message

From: Farrell 

To: pianotech at ptg.org

Received: 11/29/2007 3:08:22 PM

Subject: Key Lead Replacement





Looked at a 30 yo (guess) Yamaha G2 grand today with keys sticking. It has growing key leads. Never seen that on a Yamaha before. Grinding marks on many of the keys indicate that the leads were ground down previously. I'm recommending that they replace all key leads.



I've leaded keys as part of setting up an action. But I've never just blindly replaced the leads, trying to duplicate the original setup. I know that the owners definitely want to go minimal cost with this one (Elk's Lodge).



Seems to me leads are often of slightly different sizes, lengths, etc. If you are not carefully measuring Front Weights, etc., what the heck do you do? Seems to me the fastest way would be to pop the old lead out, weigh it, grab a lead of the same diameter, trim it to the original weight and install. Or is that just too trashy an approach? Do I tell them that we need to do a traditional weigh-off (but we can't because action center friction hasn't been addressed, etc.)? Evaluate the original FW curve and duplicate it (but that will mean some plugging, etc., i.e. more cost)? What is an acceptable, minimal approach?



Thanks.



Terry Farrell

Farrell Piano



www.farrellpiano.com

terry at farrellpiano.com
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