Annoying jiggle sounds reply

[David ilvedson]

> From:          "pianoman" <pianoman@inlink.com>
> To:            <pianotech@ptg.org>
> Subject:       Re: Annoying jiggle sounds reply
> Date:          Sat, 6 Sep 1997 06:59:04 -0500
> Reply-to:      pianotech@ptg.org

Has anyone ever dismantled one of those polyester benches and 
lubricated the rubbing surfaces?  How do you stop the squeeks?

David ilvedson, RPT
Pacifica, CA


> 
> 
> ----------
> > From: Maxpiano@aol.com
> > To: pianotech@ptg.org
> > Subject: Annoying jiggle sounds
> > Date: Saturday, September 06, 1997 6:51 AM
> > 
> > List -
> Dear Bill,
> I have tuned a few of these and it sounds like the polyster noise that you
> get from the polysester benches except that it may be louder due to the
> amplifiing nature of the piano, very annoying.
> James Grebe
> > 
> > I service a Hyundai grand regularly, that makes an annoying sound
> whenever
> > any sudden pressure is applied, such as pushing the damper pedal, or in
> my
> > case pulling/pushing on the tuning hammer.  I've wasted a lot of time
> trying
> > to find and eliminate it.
> > 
> > While the piano feels solid on its legs  (not like the cheap American
> grands
> > that make me jam my knees up against the keybed to hold them in one place
> > while tuning), there is an almost unperceptible jiggle started with each
> > tuning hammer motion, that the piano then responds with a, "chick, chick,
> > chick, chick..." so long you'd swear you had found perpetual motion.  The
> > sound is similar to that of a dog walking "tip, tip, tip, tip..." across
> a
> > hardwood floor
> > 
> > It comes from the area of the rear leg.  Tightening everything accessible
> > (pedestal screws, leg screws, etc) has no effect.  I suspect the
> polyester
> > finish at the joint in the leg itself.  While the joint appears tight,
> could
> > their be just enough motion of the finished surfaces against one another
> to
> > produce this sound?  I wonder whether trying to spray some McLube into
> the
> > crack might help, but don't want to mess up something that would make
> trouble
> > later.
> > 
> > Anyone else ever run into this problem?
> > 
> > Bill Maxim, RPT
> 
>