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Remove Piano action Yamaha C3 #2800822
01/11/19 11:54 AM
01/11/19 11:54 AM
Joined: Nov 2017
Posts: 24
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inoxinox Offline OP
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inoxinox  Offline OP
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Hi,

could someone tell me which screws I have to turn (maybe with a photo) to take the mechanic action out of the piano ? I allready removed the fallboard, but what i have to do next? It is a C3X

Last edited by inoxinox; 01/11/19 11:54 AM.
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Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2800829
01/11/19 12:09 PM
01/11/19 12:09 PM
Joined: Sep 2009
Posts: 3,691
Atlanta, GA
PianoWorksATL Offline
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PianoWorksATL  Offline
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Atlanta, GA
The steps to remove the action on a Yamaha grand are: remove fallboard, remove cheek block screws, remove cheek blocks, remove key slip, slide out action.

NOTE: When sliding the action in and out, if you are not careful, it is possible to catch a hammer and break a shank. Make sure all the hammers are down, at rest.

Once the cheek blocks are removed, the action guide pins to the left and right are something you can gently pull on when sliding it out.

If you aren't comfortable with this, have a tech do it.


Sam Bennett
PianoWorks - Atlanta Piano Dealer
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Re: Remove Piano action Yamaha C3 [Re: PianoWorksATL] #2800832
01/11/19 12:15 PM
01/11/19 12:15 PM
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inoxinox Offline OP
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inoxinox  Offline OP
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Originally Posted by PianoWorksATL
remove cheek block screws, remove cheek blocks, remove key slip, slide out action.



which screws exactly? Under the piano there are 3 screws. Sorry, i am woman and not very technical wink

Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2800839
01/11/19 12:48 PM
01/11/19 12:48 PM
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inoxinox Offline OP
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for what are this screws under the piano?

https://picload.org/view/dcidwaca/dsc_0011.jpg.html

Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2800841
01/11/19 12:56 PM
01/11/19 12:56 PM
Joined: May 2006
Posts: 4,755
Georgia, USA
terminaldegree Offline
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terminaldegree  Offline
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I'm assuming this piano uses wing nuts for the cheek blocks, not screws.
However, if you've never done this before, you should really watch a technician do it first, in your home. The chances of a novice (who's never done this before) breaking something are VERY high.

If you just want to get access and not slide the action out, then it's a lot less dangerous.


Pianist, teacher, apprentice technician, internet addict.
Piano Review Editor - Acoustic and Digital Piano Buyer
Re: Remove Piano action Yamaha C3 [Re: PianoWorksATL] #2800842
01/11/19 12:57 PM
01/11/19 12:57 PM
Joined: Jun 2003
Posts: 27,114
Oakland
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BDB Offline
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Oakland
Originally Posted by PianoWorksATL
The steps to remove the action on a Yamaha grand are: remove fallboard, remove cheek block screws, remove cheek blocks, remove key slip, slide out action.

NOTE: When sliding the action in and out, if you are not careful, it is possible to catch a hammer and break a shank. Make sure all the hammers are down, at rest.

Once the cheek blocks are removed, the action guide pins to the left and right are something you can gently pull on when sliding it out.

If you aren't comfortable with this, have a tech do it.


On older Yamaha grands, with a spring to hold the fallboard up, you need to remove the bass cheek block screw before removing the fallboard. The cheek block screws are usually screws with wings, like a wing nut, so you can turn them by hand. They are the only ones directly under the cheek blocks.


Semipro Tech
Re: Remove Piano action Yamaha C3 [Re: BDB] #2800854
01/11/19 01:26 PM
01/11/19 01:26 PM
Joined: Nov 2017
Posts: 24
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inoxinox Offline OP
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inoxinox  Offline OP
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Joined: Nov 2017
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Originally Posted by BDB
Originally Posted by PianoWorksATL
The steps to remove the action on a Yamaha grand are: remove fallboard, remove cheek block screws, remove cheek blocks, remove key slip, slide out action.

NOTE: When sliding the action in and out, if you are not careful, it is possible to catch a hammer and break a shank. Make sure all the hammers are down, at rest.

Once the cheek blocks are removed, the action guide pins to the left and right are something you can gently pull on when sliding it out.

If you aren't comfortable with this, have a tech do it.


On older Yamaha grands, with a spring to hold the fallboard up, you need to remove the bass cheek block screw before removing the fallboard. The cheek block screws are usually screws with wings, like a wing nut, so you can turn them by hand. They are the only ones directly under the cheek blocks.


there are only 2 screws on each side (see photo https://picload.org/view/dcidwaca/dsc_0011.jpg.html ) , no wings.

Re: Remove Piano action Yamaha C3 [Re: terminaldegree] #2800857
01/11/19 01:29 PM
01/11/19 01:29 PM
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Posts: 24
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inoxinox Offline OP
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inoxinox  Offline OP
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Originally Posted by terminaldegree

If you just want to get access and not slide the action out, then it's a lot less dangerous.



yes, i'm only curious, i will not really slid the action completly out. I like to know how to do it, for what are the screws , how it is installed, how it works wink

Last edited by inoxinox; 01/11/19 01:30 PM.
Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2800871
01/11/19 02:03 PM
01/11/19 02:03 PM
Joined: Jun 2003
Posts: 27,114
Oakland
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BDB Offline
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I just removed the action from a C3 Tuesday, and it had the wing screws.


Semipro Tech
Re: Remove Piano action Yamaha C3 [Re: BDB] #2800877
01/11/19 02:29 PM
01/11/19 02:29 PM
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Posts: 24
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inoxinox Offline OP
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Originally Posted by BDB
I just removed the action from a C3 Tuesday, and it had the wing screws.


perhaps it is different on the C3X? Or the screws are not the original ones? If they are nor the originals ones, is this bad? frown

Last edited by inoxinox; 01/11/19 02:30 PM.
Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2800894
01/11/19 03:21 PM
01/11/19 03:21 PM
Joined: Jan 2007
Posts: 170
Italy
Erard Offline
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Erard  Offline
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Joined: Jan 2007
Posts: 170
Italy
I have a C3X and it has normal counter-sunk wood screws just under each cheek block (the black "cubes" at each side of the keyboard).
You'll need a biggish flat blade screwdriver to do this.

Last edited by Erard; 01/11/19 03:22 PM.

Yamaha C3M - Kawai Novus - VSL CFX & Steinway D - Garritan CFX - Pianoteq Pro - American Concert D - Ravenscroft 275
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Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2800909
01/11/19 03:56 PM
01/11/19 03:56 PM
Joined: Sep 2009
Posts: 3,691
Atlanta, GA
PianoWorksATL Offline
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PianoWorksATL  Offline
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Atlanta, GA
Older C3's had the convenient wingnuts. Current production is screws, and have for probably 20+ years.

inoxinox, The screw you are looking for is the one that goes through the key bed into the cheek block. Only 1 screw will line up with the cheek block. If this description is still not making sense, then you may need professional assistance.

On a Yamaha, it will be a philips head, though it may be a combo head.

Last edited by PianoWorksATL; 01/11/19 03:59 PM.

Sam Bennett
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Bösendorfer, Estonia, Seiler, Grotrian, Hailun
Pre-Owned: Yamaha, Kawai, Steinway & other fine pianos
Full Restoration Shop
www.PianoWorks.com
www.youtube.com/PianoWorksAtlanta
Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2800919
01/11/19 04:22 PM
01/11/19 04:22 PM
Joined: Apr 2014
Posts: 1,653
USA
8
8 Octaves Offline

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USA
Originally Posted by inoxinox
Sorry, i am woman and not very technical wink


Please do not perpetuate this non-sense that women are not technical. What about the men who aren't technical? Are they not allowed to be not technical? I work with lots of men who could barely spell technology and their eyes glaze over if you show them anything technical or math related.

Re: Remove Piano action Yamaha C3 [Re: 8 Octaves] #2800975
01/11/19 06:40 PM
01/11/19 06:40 PM
Joined: Mar 2015
Posts: 207
Netherlands
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HansC2 Offline
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Originally Posted by 8 Octaves
Originally Posted by inoxinox
Sorry, i am woman and not very technical wink


Please do not perpetuate this non-sense that women are not technical. What about the men who aren't technical? Are they not allowed to be not technical? I work with lots of men who could barely spell technology and their eyes glaze over if you show them anything technical or math related.


+1

Re: Remove Piano action Yamaha C3 [Re: PianoWorksATL] #2801010
01/11/19 07:53 PM
01/11/19 07:53 PM
Joined: Aug 2011
Posts: 6,115
Reseda, California
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JohnSprung Online content
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Originally Posted by PianoWorksATL
NOTE: When sliding the action in and out, if you are not careful, it is possible to catch a hammer and break a shank. Make sure all the hammers are down, at rest.


Yes, and be very careful that you don't press any keys as you grab the ends of the keyboard, which will also make the hammers go up and break off. Breaking shanks is the biggest danger in pulling your own action.


-- J.S.

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Knabe Grand # 10927
Yamaha CP33
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Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2801094
01/12/19 03:54 AM
01/12/19 03:54 AM
Joined: Oct 2013
Posts: 3,782
Kuwait
PhilipInChina Offline
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With respect I think this is a case of: if you need to ask these questions, you probably shouldn't be doing it. It is very easy to break something, as I have found out to my expense.


Currently working towards "Twinkle twinkle little star"
Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2801987
01/14/19 04:51 PM
01/14/19 04:51 PM
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Wisconsin, USA
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Lakeviewsteve Offline
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Did you check out YouTube videos? I'm sure there will be some showing you what screws you are looking for....

Why haven't you watched your technician remove the action before?


Bösendorfer 170
Re: Remove Piano action Yamaha C3 [Re: inoxinox] #2801997
01/14/19 05:00 PM
01/14/19 05:00 PM
Joined: May 2001
Posts: 10,963
Maryland/DC/No. VA
Steve Cohen Offline
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Please keep in mind what curiosity did to the proverbial cat.

Wait until your next tech visit and satisfy your curiosity then.


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