[pianotech] Seiler 53" (135 cm) Upright 1997

Dean May deanmay at pianorebuilders.com
Fri Oct 22 07:42:48 MDT 2010


For a vertical piano you get a lot of bang for your buck by reducing spring
tensions. Often they are set way too high. Try an octave of damper springs,
C4 to C5. Experiment with reducing tension until you get just a little more
than what you need to dampen. You'll be amazed at the difference. Similarly,
it's not hard to experiment with the hammer tension. The jack spring tension
also plays a very big role and it isn't quite as easy to reduce. I've
thought about sticking a screwdriver in to compress the lower 2 coils and
adding a drop of CA, but haven't given it a try yet. 
 

Dean

Dean W May                (812) 235-5272

PianoRebuilders.com    (888) DEAN-MAY

Terre Haute IN 47802

 

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Thomas Cole
Sent: Friday, October 22, 2010 3:32 AM
To: Pianotech
Subject: [pianotech] Seiler 53" (135 cm) Upright 1997


I tuned a wonderful-sounding but poorly-regulated Seiler today. The owner
and 8-year-old daughter both report the touch is too heavy. When I tried the
piano, it was hard to play pp passages without notes dropping out here and
there and, yes, it felt heavy.

There is a card on one side showing the regulation specs. Notes 1 - 34 have
56g (DW) and 35 - 88 have 54g. I found that most of the keys had four leads
behind the balance rail (half leads, two on each side). The few keys I
checked, with the wippen raised, the lead weights seemed to be balancing the
front weight of each key (see two photos below showing both sides of C4).

All of the dampers are timed very early (dampers move after a couple of mm
hammer travel).

My question is, what would be the most technicianly way of reducing
touchweight? Anything I need to know about this particular piano?

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20101022/9ae48e1f/attachment.htm>


More information about the pianotech mailing list

This PTG archive page provided courtesy of Moy Piano Service, LLC