Damper Assembly Upgrade

[william ballard]

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On Jan 7, 2006, at 11:27 PM, Kent Swafford wrote:
> I've cut down trays on 5 or 6 pianos, most recently this past =20
> summer. This can work well. As I recall, I did not have to re-=20
> regulate the sostenuto blade.

The only reason I assumed this might come up was higher post lift =20
(because it's mounted further from the lever center, the new lever =20
being longer, negligible, I'll bet) or higher key end lift (because =20
of moving to 17mm shanks).

> I like to add springs. I came into a studio a few years ago and the =20=

> pianist and violinist with which he was rehearsing were going back =20
> and forth between the two B's, one from '79 with springs and one =20
> from '90 without, pointing out how much better the damping was on =20
> the older piano. They were right.

Hah! Exactly what I'm looking for. If you're adding them, are these =20
the 008643 (old style)? One way or another I have to get the springs =20
out of the way of the saw cuts, either by completely uprooting them =20
or by bending the long leg 180=BA backwards (temporarily removing 1/2 =20=

coil). If you had an exact-match source, then I wouldn't have to =20
worry about springs get mangled during the above proposed methods. =20
Also, if you were adding springs to levers not made to receive them, =20
how'd you make the spring groove? By hand with a veining tool?

On Jan 7, 2006, at 9:43 PM, Erwinspiano@aol.com wrote:
> I do change the tray pivotsto be in line with the underlever =20
> centers, which can take some time, but that's the nature of custom =20
> mods.

Looks like I'll be scabbing on a small block at each end of the tray, =20=

'cause without them the pivots would want to fall in the area cut out =20=

for clearance of the inside end of the lever. ".......but that's the =20
nature of custom mods"

I'll glad it's on record that someone else has been doing this =20
already <g> This is for http://williamackerman.com/studio.html

Bill Ballard RPT
NH Chapter, P.T.G.

"May you work on interesting pianos."
     ...........Ancient Chinese Proverb
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