Kawai RX-2 squeaky whippens

David Ilvedson ilvey@sbcglobal.net
Tue, 8 Feb 2005 08:33:30 -0800


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I would bet it will come back unless the flange screws were=
 loose...not likely with the metal rail...I'd take micro-fine=
 teflon powder and apply it to knuckles and wippen cushions.   I=
 have come across problems with Kawais and center pin squeeks.  =
 Too much glue in the bushing cloth...?  Reaming the bushing and=
 re-pinning solves the squeek, but replacing the bushing cloth or=
 flange would be the best bet.   This is the black jack=
 action...?  All plastic?

David I.







Original message
From: 
To: 
Received: Tue, 8 Feb 2005 02:13:27 EST
Subject: Kawai RX-2 squeaky whippens


This is about a warranty service call. The client is complaining=
 about noisy keys on a new RX2 she purchased in October. When I=
 try the piano I hear a loud leathery kind of squeak on just=
 about every key.. The first thing that comes to my mind is jack=
 against knuckle kind of sound.
I take the action out, lift the hammers out of the way and push=
 up on the whippens by hand, the squeak is still there, so it's=
 not the jacks and it's not the capstans. Everything looks=
 properly aligned, nothing seems to be rubbing against anything=
 but all the whippens squeak, some louder than other, but all 88=
 do. I decide to take one out to get a closer look. It looks=
 normal, I wiggle the jack, the repetition lever, the flange, no=
 problem. I screw it back on the rail and then the squeak is=
 gone! 
So all I did then was loosen every single single flange screw a=
 couple of turns  and screwed them back in. And that took care of=
 the problem. But I am still puzzled. 
Then back at the store I tried another RX-2 and sure enough, it=
 squeaks too. Not as loud, not as distracting, you really have to=
 listen for it, but it's there. I tried my trick with the flange=
 screws on that one but it did not make any difference.
Any comments, ideas? 
 
Jean-Luc Matton, RPT  (new RPT)
Albuquerque NM


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