Work over, just

[Ron Nossaman]

>All the hinges were tight, and, when you slowly moved the hinge on the rod
>hook you could feel the grip between the hook and the felt bushing of the
>hinge, it seemed to grip until enough pressure was applied then become free,
>with a clicking sound.

Ah, I got it now. I'm with you.


>Lubricate and problem solved but why did the hook show that sort of
>resistance ?
>
>My thought is that the damper bar and hooks are CHROME PLATED not cadmium,
>and a very smooth surface of the chrome is gripping the felt ? fibres in
>some static form. I query the felt because it may be an artificial felt with
>nylon or something in it and we all know that two very smooth surfaces when
>placed together seem to grip first then slide easily.

Could very well be. Might be a nickel plating too, with the same effect.
Since we so often find key bushings soaked through with glue and squeaking,
what's the condition of the cloth in the hinge bushings? Why would the
bushings get tight enough to squeak? Seems like they'd get looser with
wear. I was thinking these hangers were bigger in diameter than standard,
but then I seem to remember them being necked down to a smaller diameter in
the bushing, so it's not a larger contact area aggravating the effect.
Don't know. I've run into this sort of thing a time or three, and just
lubricated like you did. 


>If this is the case with the chromed surface against a nylon type felt, you
>are going to hear more of it as these pianos become available. Could also be
>a future trend in manufacture with Yamaha.
>
>Regards
>
>Tony Caught

I sure home not.

Ron N