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#638254 - 01/20/09 10:52 AM Buzz in the lock  
Joined: May 2006
Posts: 201
ocd Offline
Full Member
ocd  Offline
Full Member

Joined: May 2006
Posts: 201
North East
My Kawai RX-3 has developed a buzz in the lock. More specifically in the half of the lock attached to the fallboard (one half attaches to the fallboard, the other one attaches to the lid). My technician suggested using a couple drops of oil. That did not work. Any ideas?

Thanks,
ocd


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#638255 - 01/20/09 11:31 AM Re: Buzz in the lock  
Joined: Mar 2008
Posts: 4,263
Silverwood Pianos Offline
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Silverwood Pianos  Offline
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Joined: Mar 2008
Posts: 4,263
Vancouver B. C. Canada
Gee, the way I remember the Kawai RX the lock itself is in the top of the stretcher. This is the wooden bar above the fallboard. It is only the crash plate that is in the top board. You should be able to tighten the screws, and if that does not work, try a thin gauge piece of felt underneath. As far as the fall board attachment goes, I always thought the stem for the lock protruded downwards into a hole in the back of the fallboard. This prevented the fallboard from opening. Maybe I am remembering it wrong there….

www.silverwoodpianos.com


Dan Silverwood
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#638256 - 01/20/09 06:43 PM Re: Buzz in the lock  
Joined: May 2001
Posts: 190
Josef Offline
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Josef  Offline
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Joined: May 2001
Posts: 190
I've ran into the same things on several Kawai grands the have been sold from the dealer I work for. I've had some success with merely taking the key and rapid lock-unlock to make the parts function and move and also a few drops of oil.

#638257 - 01/20/09 07:00 PM Re: Buzz in the lock  
Joined: Nov 2007
Posts: 6,828
Jerry Groot RPT Offline
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Jerry Groot RPT  Offline
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Joined: Nov 2007
Posts: 6,828
Grand Rapids Michigan
I've taken the lock apart before and carefully filled the surrounding areas with cotton too. That works very well. You just have to be careful not to interfere with the working parts. The cotton prevents the rattling parts from rattling against itself or other parts.


Jerry Groot RPT
Piano Technicians Guild
Grand Rapids, Michigan
www.grootpiano.com

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#638258 - 01/21/09 11:58 PM Re: Buzz in the lock  
Joined: Feb 2002
Posts: 1,329
KawaiDon Offline
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KawaiDon  Offline
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Joined: Feb 2002
Posts: 1,329
Orange County, CA
Your technician should fix this for you at the next appointment. It would be best for him / her to contact us at Kawai for the recommended method to stop it.

It might even be covered under warranty, if the piano is less than 10 years old.

Under no circumstances should the lock plunger parts be removed from the upper beam (AKA stetcher bar). This will crack the finish, and is not necessary.

Jerry's suggestion is correct - but the cotton can be inserted from below with a little time and patience and the correct procedure - which I would prefer to provide to the technician.


Don Mannino, MPA
Kawai America

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