bowing keyframe

[David Ilvedson]

Elliot,

What do you do before you begin sanding or kerfing the front rail to bed the
keyframe?

David I.

> -----Original Message-----
> From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]On Behalf
> Of Eliot Lee
> Sent: Monday, October 09, 2000 7:27 PM
> To: pianotech@ptg.org
> Subject: bowing keyframe
>
>
> Dear List,
>
>     I have the good misfortune to be called back by a guy who has
> a Tokei 5'
> Grand.
>
>     I could not bed the keyframe it either bows in the middle or
> the ends, I
> can't remember which.  No small sanding of the frame could help.  I am
> wondering if this was ever done deliberately by the factory?  What could
> have caused it to warp?
>     Have any of you had this type of experience?  Aside from sanding, what
> is recommended to make the frame more level?
>
> Thanks,
>
> Hoping to make more improvements on this next week.
>
> Eliot
>
>