[pianotech] Plastic Damper flanges

Delwin D Fandrich del at fandrichpiano.com
Mon Jan 2 09:19:02 MST 2012


You'll not find any specifications for this kind of work. You do what you
can with what you can find. And you'll have a talk with your client about
the economic feasibility of going ahead with the repair. The piano may not
be worth the effort.

 

Having said that-and assuming the client wants to spend the money-the repair
procedure is fairly straight forward. 

n  If you're lucky you might find two pieces of the same flange to measure
but why bother? Your choices for replacement flanges are rather limited; buy
the one with the spring length that best fits.

n  Remove the rest of the flanges from the damper levers. Do not install the
new flanges yet.

n  Sort the levers into piles by damper type; mono-chords to the left,
bi-chords next, then tri-chords (if there are any) and, finally the pads.

n  Now start putting them in order using the damper type as an initial
guide. Lay them out side-by-side with a board under the wood levers (so they
will lie as flat as you can get them) and sort by the amount of bend in the
damper wires. 

n  The bends will be fairly progressive and obvious to the discerning eye.
You probably won't get them perfect but you should be able to get them
fairly close to the right order just by looking. You want the bends to look
progressive. 

n  Once they are sorted you can install the new flanges and screw them to
the rail. Before installing the action stand back and take a last look at
the back of the action; you may want to swap around a few for a better
side-to-side fit.

 

Thinking about this job is more intimidating than actually doing it. Once
the action is in the piano you'll need to adjust the side-to-side damper
spacing and damper lift. This may also not be as bad in the doing as it is
in the thinking about. It depends on how close the replacement damper
flanges are to the originals.

 

I've probably forgotten a few details-it's been close to thirty years since
I've done one-but once you're started it should go along fairly smoothly.

 

ddf

 

Delwin D Fandrich

Piano Design & Fabrication

6939 Foothill Court SW, Olympia, Washington 98512 USA

Phone  360.515.0119 - Cell  360.388.6525

 <mailto:del at fandrichpiano.com> del at fandrichpiano.com -
<mailto:ddfandrich at gmail.com> ddfandrich at gmail.com

 

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Rob McCall
Sent: Monday, January 02, 2012 2:29 AM
To: pianotech at ptg.org
Subject: [pianotech] Plastic Damper flanges

 

 

Does anyone have any specs for this?  Or does it look like the standard
spinet flange from Schaff, etc. would work?

 

Also, if anyone has any hints or tips as to how best to sort the pile of
damper levers from the mayhem it's in, into the correct order it needs to be
in, I'd appreciate it...  and no, they aren't numbered...  :-/

Regards,

 

Rob McCall

 

McCall Piano Service, LLC
www.mccallpiano.com

Murrieta, CA

951-698-1875

 

 

 

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