Kimbal/Piano disk

[M. Seminuk]

Hi
We are not talking about a bouncing ball here.Just enough lift to cause a
noise much like lifting the hammer flange rail to test for key bed screw
adjustment.

Regards
Murray
-----Original Message-----
From: PDtek@AOL.COM <PDtek@AOL.COM>
To: pianotech@ptg.org <pianotech@ptg.org>
Date: November 27, 1999 3:00 PM
Subject: Re: Kimbal/Piano disk


>In a message dated 11/27/99 8:55:28 AM Central Standard Time,
>seminukm@cadvision.com writes:
>
><< Check to see if the rear dags are still there.If they were removed and
not
> replaced this can cause the rear of the key frame to bounce . Listen
closely
> to find if the noise is caused in the up or down motion of the solenoid.
>  >>
>
>I have never seen a keyframe bounce because the dags were gone. Besides,
most
>dags are more of a backstop and will keep the frame in place while moving,
>but I haven't seen many dags that will hold a frame down TIGHT to the bed
>with NO vertical play. Now, I have seen frames bounce where the back rail
of
>the frame was not shimmed to compensate for the 3/4" cut off the back of
the
>frame.
>
>Dave Bunch
>