Yamaha Colsole, Sharps checking on trill with sustain pedaldepressed.

Dean May DeanMay@PianoRebuilders.com
Sat, 3 Apr 2004 19:03:24 -0500


This is a multi-part message in MIME format.

---------------------- multipart/alternative attachment
Normally the spring of the damper lever aids the key in returning to =
rest position. If everything is working as it should, you shouldn't need =
this extra help. If the sustain pedal is on, this "help" from the damper =
spring is effectively disabled. That means that any extra friction =
anywhere in the mechanism is going to show up as a sluggish key. It most =
likely is the front rail bushing, but could be the balance rail, one of =
the action centers or hammer spring out of place.=20
=20
And yes, jamming a screwdriver between keys while holding them down =
(this makes the bushing fully engage the pin where the binding occurs) =
and twisting back and forth is a quick and dirty method of easing front =
rail bushing. Just don't tell anyone. ;-)
=20
Dean
=20
Dean May             cell 812.239.3359
PianoRebuilders.com   812.235.5272
Terre Haute IN  47802
=20
-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On =
Behalf Of Gholley237@cs.com
Sent: Saturday, April 03, 2004 6:10 PM
To: pianotech@ptg.org
Subject: Yamaha Colsole, Sharps checking on trill with sustain =
pedaldepressed.
=20
Hello List.  Yamaha P22, Console, 270499, owner bought new from local =
Mishawaka, IN., dealer three years ago.
Dealer sent a "tooner" to tune 1st time, and owner call her back for 2nd =
and 3rd tuning.
On 3rd visit, the owner asked the "tooner" why the sharps would "stick =
or not return when a fast trill was played, with the sustain pedal =
depressed".  "Tooner" told the owner that Yamaha Consoles had this =
problem and said that it was probably the front pin bushing being too =
tight.  (The problem does not present itself when a trill is played and =
the sustain pedal is NOT depressed).

Anyway, the "tooner" took a thin steel blade, probabaly a machinist =
rule, and jambed it down between the keys in the area of the front pins =
and moved it back and forth saying that she was trying to free up the =
space in the area of the pin bushings.
I wonder if this "tooner" even knows where the pin bushings are located, =
surely not on the side of the key stick.

The "tooner" did not remove the key slip to look under the keys to see =
if anything looked amiss.  "Tooner" could not resolve the problem and =
left.  Will not return calls made to her.  Owner has called the dealer =
several times and the dealer will not return the calls to address the =
warranty problem.

The owner got my name from another satisfied customer of mine and called =
me.
I looked at the piano this afternoon to play it my self and experience =
the problem first hand.

Offending sharps are G#4, A#4, G#5, C#6, G#7.

Does anyone have some knowledge to shed on this problem and what to look =
for and in what sequence.  What initially should I be looking for?

Many regards to all.

Gordon Holley
Associate Member
Goshen, IN
Indiana Chap 467.

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/50/2f/9a/7b/attachment.htm

---------------------- multipart/alternative attachment--


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