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#1292380 - 10/23/09 12:19 PM Sticky key when sus-ped is engaged  
Joined: Nov 2008
Posts: 50
enigma2118 Offline
Full Member
enigma2118  Offline
Full Member

Joined: Nov 2008
Posts: 50
Boston
Hey there everyone, mornin'

So a question I had, not that I'm even thinking of tinkering on my own, the tuner/tech can take this one. But I'm curious as to why.

My new-to-me piano has a couple of slow to return keys at the top. C & D I believe. There is also another key (C again I think, one octave lower)that is also slow to return. But the interesting thing is that when the sustain pedal is engaged it aggravates the speed of return, and the key won't fully return. But once the pedal is released, the key jumps right back into position.

Oh, the piano is a 1981 Kimball console. It's in fantastic shape (needs a tuning.) The original owner didn't play much, but kept care of it like a baby. So while there are some very minor tweeks that need to be done (Such as those top 2 slow to return keys) the piano is treating me wonderfully.

Thank you all.

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#1292382 - 10/23/09 12:23 PM Re: Sticky key when sus-ped is engaged [Re: enigma2118]  
Joined: Jun 2003
Posts: 24,934
BDB Offline
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BDB  Offline
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Joined: Jun 2003
Posts: 24,934
Oakland
The damper spring provides a bit of extra push that can overcome something sticky in the action.


Semipro Tech
#1292433 - 10/23/09 01:24 PM Re: Sticky key when sus-ped is engaged [Re: BDB]  
Joined: May 2001
Posts: 10,536
Rich Galassini Offline
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Rich Galassini  Offline
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Joined: May 2001
Posts: 10,536
Philadelphia/South Jersey
Originally Posted by BDB
The damper spring provides a bit of extra push that can overcome something sticky in the action.


This is true. Usually a decent tech. can cure this issue in just a few minutes. If they can do it while they are already out there tuning, it might cost you next to nothing.

Good luck,


Rich Galassini
Cunningham Piano Co.
Phila, Pa.
(215) 991-0834 direct line
rich@cunninghampiano.com
Check out the Science Channel's "How Its Made" featuring our piano restoration:
http://www.cunninghampiano.com/how-its-made/
#1292831 - 10/24/09 09:08 AM Re: Sticky key when sus-ped is engaged [Re: Rich Galassini]  
Joined: Mar 2009
Posts: 771
ChrisVenables Offline
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ChrisVenables  Offline
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Joined: Mar 2009
Posts: 771
Hampshire, England
The sluggishness is usually caused by tight key bushings - often an indication of the piano being kept in a damp environment.


Tech. & Partner: Venables Pianos
Yamaha Piano UK main dealer and Grand Piano Centre
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#1292833 - 10/24/09 09:24 AM Re: Sticky key when sus-ped is engaged [Re: ChrisVenables]  
Joined: Dec 2006
Posts: 498
Randy Karasik Offline
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Randy Karasik  Offline
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Joined: Dec 2006
Posts: 498
Arvada, Colorado, USA, Earth
Originally Posted by ChrisVenables
The sluggishness is usually caused by tight key bushings - often an indication of the piano being kept in a damp environment.


Or worse - tight or corroded center pins. I just re-pinned the hammer flanges on a Steinway M. It made all the difference in the world, making an unplayable piano into a decent instrument.

But that's an all day job in the shop, and not a minor adjustment done at the time of the tuning.



Registered Piano Technician
Serving Colorado Since 1978
randy@karasikpiano.com
www.karasikpiano.com
#1292848 - 10/24/09 09:56 AM Re: Sticky key when sus-ped is engaged [Re: Randy Karasik]  
Joined: Mar 2009
Posts: 771
ChrisVenables Offline
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ChrisVenables  Offline
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Joined: Mar 2009
Posts: 771
Hampshire, England
If it were tight centres on the hammer flanges I doubt whether the sustain pedal/damper springs would have much bearing on the key return, but maybe if it were the lever flanges? - let's hope not for enigma's sake.


Tech. & Partner: Venables Pianos
Yamaha Piano UK main dealer and Grand Piano Centre
Stocking new Yamaha, Petrof and Venables & Son
#1292872 - 10/24/09 11:01 AM Re: Sticky key when sus-ped is engaged [Re: ChrisVenables]  
Joined: May 2001
Posts: 1,372
Eric Gloo Offline
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Eric Gloo  Offline
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Joined: May 2001
Posts: 1,372
Richfield Springs, New York
If the notes are at the high end of the treble, they don't have dampers. I suppose if the damper lifter rod is on the treble end of the action, AND if the action bolt screws aren't tight, the action could be lifting slightly.

Specifically, what notes are having the problem?


Eric Gloo
Piano Technician
Certified Dampp-Chaser Installer
Richfield Springs, New York

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