Yamaha problem

[Robert Moffatt]

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Avery,

Not a bother at all.
It has been mentioned that metal fatigue in the bushing clips could be =
the problem.
Highly unlikely, but not to be ruled out. Rebushing the lift rail guide =
bushings will eliminate
any squeaks, groans etc. At the same time , polishing the lift rod will =
certainly help in this
area as well, but has nothing to do with uneven damper lift. It has also =
been mentioned
that movement in the action rail due to a "flattened rubber foot" ( it's =
called an upright
action cap ) could correct the problem...no. The action cap serves only =
to straighten the
intentional bend in the rail when the action is securely in place. If =
there is as much uneven
lift as you indicate, the action rail has been bent. Straightening the =
rail should be the remedy.
Replacing the rail a sure cure. There are, as in all piano work, a lot =
of grey areas surrounding
this particular problem. With this fix I'm assuming the piano has not =
been tampered with. Probably
dropped or fallen over.... the usual cause in my experience.
If you discover any other peculiarities...don't hesitate to write.

Best wishes,=20

Bob Moffatt
Yamaha Authorised
Factory Trained Technician






----- Original Message -----=20
From: Avery Todd <atodd@UH.EDU>
To: Robert Moffatt <moffattr@cadvision.com>
Sent: Saturday, September 16, 2000 7:47 AM
Subject: Re: Yamaha problem


> Robert,
>=20
>    Would you mind resending your message, if possible?
> For some reason, it came through blank. I have that happen
> here at school sometimes but still don't know why. Sorry
> for the bother.
>=20
> Thanks,
> Avery
>=20
>=20

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