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#2103920 - 06/17/13 03:52 PM Question about piano action (jack and hammer related)
wilsocn Offline
Junior Member

Registered: 11/04/09
Posts: 12
I recently bought a Samick 108P on Craigslist that is around 20 years old. It appears to be in great shape inside and out but, it does need a good once over since it has only been a piece of furniture for a lot of years.

I am used to playing a full size weighted keyboard so I don't have any experience with the action on an actual acoustic piano. The issue is with the jack and hammer butt. If I press the keys slowly and with light pressure I can feel the moment when the jack moves in and out of position both when the key is pressed and depressed. It isn't too noticeable but you can definitely feel it if you are paying attention. Hopefully I am using the correct terms, I am using an online diagram to ID these parts.

Should I ever be able to feel this and if not, what is the usual remedy? A technician is coming Thursday so right now I am just trying to learn what I can so I have an idea of what type of work might need to be done when he gets here.


Edited by wilsocn (06/17/13 03:54 PM)

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#2103922 - 06/17/13 03:58 PM Re: Question about piano action (jack and hammer related) [Re: wilsocn]
Jim Dunleavy Offline
Full Member

Registered: 02/27/05
Posts: 230
Loc: The Original Washington (UK)
The short answer is yes - I believe that is one of the defining features of real piano touch.
Jim (amateur musician and composer..and piano tinkerer).

Restoration Project Videos

#2103926 - 06/17/13 04:06 PM Re: Question about piano action (jack and hammer related) [Re: wilsocn]
accordeur Online   content
1000 Post Club Member

Registered: 06/23/06
Posts: 1307
Loc: Québec, Canada
Feeling when the jack is escaping is normal, but you might be experiencing excessive lost motion, which would be normal if the piano has not been regulated in 20 years. Your tuner tech should be able to take care of that.
Jean Poulin

Musician, Tuner and Technician


#2104038 - 06/17/13 08:31 PM Re: Question about piano action (jack and hammer related) [Re: wilsocn]
daniokeeper Offline
1000 Post Club Member

Registered: 02/01/09
Posts: 1176
Loc: PA
It is normal to feel this.

But, do ask your tech about it.

Since this is a used, 20 year old piano, it is "possible" that the action was heavily used and now the butt leathers are deformed. Your tech can check for this for you.

If the action is in good shape, lubricating the butt leathers with a little Teflon powder can lessen the friction for you and make the action more controllable... IF the action is in good regulation.
Joe Gumbosky
Piano Tuning & Repair

#2104063 - 06/17/13 09:23 PM Re: Question about piano action (jack and hammer related) [Re: wilsocn]
wilsocn Offline
Junior Member

Registered: 11/04/09
Posts: 12
Thanks for the help, guys. I am making a list of all the things that I think need attention and I will let the tech decide if these things are normal or not. On some of the keys this 'problem' is more apparent and it almost feels like there is a catch when the key is pressed so hopefully some sort of adjustment will take care of it.


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