Damper lift rod grinding

[Richard Morgan]

Michelle,

Just before Easter the damper pedal on our church's Steinway M started squeaking/grinding during communion.  After getting some advice from the list, and listening closely, thinking the problem was the spring, I removed the trapwork for that pedal, pulled the hinge pin holding the lever activated by the damper lift rod--it was incredibly tight, and was the source of the noise.  Someone suggested lubing with vaseline.  Haven't used vaseline in years on my tubas, but had some good tuning slide grease, which I applied.  Hinge pin went in much easier; reassembled, and the noise was gone.  Without someone suggesting the hinge pin, I would have not considered that friction as a source of the noise.

Good luck,
Richard Morgan



----- Original Message ----
From: Michelle Smith <michelle at smithpianoservice.com>
To: Pianotech List <pianotech at ptg.org>
Sent: Tuesday, May 1, 2007 1:04:57 PM
Subject: Damper lift rod grinding


Hi all.  I have a 1951 Steinway S here at the house that has started making a grinding noise when the damper pedal is pushed.  I’ve isolated it to the metal rod that comes through the keybed and lifts the dampers.  Being a newbie, I want to get some suggestions from y’all before I begin.  
 
Thanks for your help.
 
Michelle Smith
Smith Piano Service
Bastrop, Texas
(512) 466-0238
michelle at smithpianoservice.com

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