Rattles & squeaks

[Ron Torrella]

On Fri, 15 Nov 1996, Aaron Bousel wrote:

> The dowell needs a pin at each end and corresponding holes in the trapwork
> lever and the damper tray.

Actually, no pin is needed (or preferred).  I forgot to mention that a
recess may need to be drilled into the underlever tray to correspond with
the location of the new, larger hole;  another recess hole should be
drilled into the trapwork lever which is in contact with the pitman
from below (and a punching is glued to the bottom of the pitman). Make the
recessed holes the same diameter as the punchings used on the pitman.

			     Ron Torrella, RPT
			Assistant Piano Technician
			  University of Michigan
			      School of Music