[pianotech] D5 damper problem on a Wurlitzer grand (1962)

[tom]

To Whom,

    If the Sostenuto bar is in the way -- move it. If the flange is seized
squirt some protek in there. It may help,

 But first you need to narrow down the possibilities. Remove the damper by
loosening the set screw .  Is the flange free? If not remove and repin if
necessary.

Is the guide rail bushing too tight? Are the wire bends binding the movement
of returning damper? If the wire is improperly bent it can bind in both the
guide rail  and also put uneven pressure on the damper lever .  Foreign
object? Lead weight pushed out and binding on its neighbor ?

Take a good look and don't be afraid to take things apart. I'll bet the
problem will jump right out at you.

 Tom Driscoll 

P.S. Who are you?

 

 

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of pianofritz50 at aol.com
Sent: Tuesday, September 29, 2009 9:33 PM
To: pianotech at ptg.org
Subject: [pianotech] D5 damper problem on a Wurlitzer grand (1962)

 

I came across a D5 damper problem on a Wurlitzer grand - tried Protek first
(didn't work), then pulled the action & found that the damper wouldn't drop
back into place - it hangs (up).

 

The sostenuto bar runs across the back action & looks like it would prevent
me from removing the flange & lubricating it (if that's even the issue or
the proper solution).

 

It's a Wurlitzer 5'10" grand model C153  s/n 763339 - looks like 1962 is the
manufactured date according to my piano atlas

 

Any thoughts would be helpful.

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