Yamaha Key Bushing Replacement

[Overs Pianos]

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Hi Terry,

I'd concur with Joe and Kent, the key pins must be very smooth for a 
long lasting result. Changing the brass pins for a very smooth plated 
set would be a plus.

The Renner cloth is long lasting stuff. There's also some very good 
English felt available from Heckscher. I think Norbert Abel uses it 
for some of his parts. Heckscher's website can be found at;

http://www.heckscher.co.uk/

Ron O.

>I've got a bunch of Yamaha C3s from cruise ships to do key bushings 
>on. Many of these piano get fairly rough use 7 days per week (piano 
>bar and all that). So we're searching for a better way. Some of 
>these get worn out in a matter of several months.
>
>We've considered leather bushings, but my understanding is that 
>there can be a chemical reaction between the leather and the Yamaha 
>brass key pins. I don't see that the supply houses offer 
>plated/steel pins in the Yamaha size.
>
>So maybe we need to use cloth key bushings. I heard from some that 
>Renner has the most durable key bushing cloth. Any opinions on that?
>
>What about lubrication on the cloth bushing material to minimize 
>friction and increase longevity? Microfine Teflon powder? But 
>doesn't that just sort of fall out quickly? What about some sort of 
>graphite? A synthetic grease, maybe like VJ lube? Anyone ever try 
>anything like that? Any other ideas (constructive)?
>
>Maybe I should just stand in back of the piano player with a whip or 
>a well proportioned maple 2 x 4?
>
>Thanks.
>
>Terry Farrell


-- 
OVERS PIANOS - SYDNEY
    Grand Piano Manufacturers
_______________________

Web http://overspianos.com.au
mailto:ron@overspianos.com.au
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