[pianotech] changing damper ring

[Dean May]

Does the ringing go away if you push down on the damper lift tray? Sounds
like something is barely pushing it up, perhaps you need more lost motion in
the trap work or sustain solenoid adjustment. Maybe you need a little spring
tension to push the lift tray down. 

Dean

Dean W May (812) 235-5272 voice and text

PianoRebuilders.com (888) DEAN-MAY

Terre Haute IN 47802

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Wally Scherer
Sent: Wednesday, November 23, 2011 9:58 PM
To: pianotech at ptg.org
Subject: [pianotech] changing damper ring

A Yamaha G-2 with a QRS Pianomation 2000 and a Pioneer PD M426 disc changer
has a problem with damper after ring.

I identified which dampers were ringing, (about 8) removed the action,
loosened the damper wire screw and adjusted the damper wires, put the action
back in and those dampers didn't ring any more.

But - other dampers were now ringing. I repeated the process, and sure
enough, now a completely new set of dampers were ringing. 

Some are sets of two or three next to each other, and some alone. They can
be in the lower, middle, or upper sections.

I told the customer I needed to research the problem, because it didn't make
any sense to me.

The rods which push up on the back of the keys have rubber tips which all
seem even in height. The underside of the keys where they push up on has a
1/2 inch wool pad which seem firm enough. The sustain pedal seems to be
adjusted properly. The action seems to be bedded well. 

Any ideas as to why a different set of dampers seem to be ringing each time
I take the action out and put it back? Do I need to adjust each damper
individually like I already have on about a dozen?

Has anyone seen this problem before?

Thanks.

Wally Scherer

A FINE TUNE - Piano Tuning & Repairs
Wallace T. Scherer, piano technician, music educator
5020 Canal Drive, Lake Worth, Florida, 33463-8014
Telephone: 561-432-4121
Web page: http://aftune.angelfire.com
------------------------------------------------
FREE TICKETS: http://aftune.angelfire.com/freetics.html
-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1873 / Virus Database: 2101/4634 - Release Date: 11/23/11