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

Registered: 11/30/08
Posts: 50
Loc: 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]
BDB Online   content
Yikes! 10000 Post Club Member

Registered: 06/07/03
Posts: 23450
Loc: Oakland
The damper spring provides a bit of extra push that can overcome something sticky in the action.
_________________________
Semipro Tech

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#1292433 - 10/23/09 01:24 PM Re: Sticky key when sus-ped is engaged [Re: BDB]
Rich Galassini Offline
9000 Post Club Member

Registered: 05/28/01
Posts: 9971
Loc: 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.
Dir. Line (215) 991-0834
rich@cunninghampiano.com
www.cunninghampiano.com

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#1292831 - 10/24/09 09:08 AM Re: Sticky key when sus-ped is engaged [Re: Rich Galassini]
ChrisVenables Offline
500 Post Club Member

Registered: 03/03/09
Posts: 771
Loc: Hampshire, England
The sluggishness is usually caused by tight key bushings - often an indication of the piano being kept in a damp environment.
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#1292833 - 10/24/09 09:24 AM Re: Sticky key when sus-ped is engaged [Re: ChrisVenables]
Randy Karasik Offline
Full Member

Registered: 12/08/06
Posts: 498
Loc: 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

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#1292848 - 10/24/09 09:56 AM Re: Sticky key when sus-ped is engaged [Re: Randy Karasik]
ChrisVenables Offline
500 Post Club Member

Registered: 03/03/09
Posts: 771
Loc: 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

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#1292872 - 10/24/09 11:01 AM Re: Sticky key when sus-ped is engaged [Re: ChrisVenables]
Eric Gloo Offline
1000 Post Club Member

Registered: 05/28/01
Posts: 1324
Loc: 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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