David writes: <<We get a lot of tight damper guide rail bushings here, especially on new >pianos. We recently got a new D, opened the crate, stood it up, installed a Dampp-Chaser, covered it, etc and it still got tight.>> Greetings, We are seeing that too. However, I find that the bushing cloth is not the only culprit. There is a slight corrosion on the wires ( they must sit around for a while before installation), and there is excessive side pressure on the guide bushings. A quick swipe with Brasso, and a little judicious use of the bending pliars has aways freed them up like gang-busters. I think the side pressure is the biggest offender, because even without the polish, there is a tremendous difference in the resistance at the underlever before bending. It is also possible that the wire is not traveling straight through the axis of the guide bushing. (See the Jolly article inre dampers and their wires, Roger has a good perspective on this bit of geometry!)_ Regards, Ed Foote RPT
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