In a message dated 04/07/2002 2:44:24 PM Pacific Daylight Time, antares@EURONET.NL writes: > Hi Bob Davis, > > Because they are all moving parts. Center pins move in their bushings and > springs move in their spring slots. ***But the ones I listed are not engaged until after the jack touches the regulating button. Are you measuring the downweight THROUGH letoff? Here we measure only at the point the jack tender touches, which would not involve the parts I mentioned. > If all these moving parts move more easy (read faster, because of the > lessening of friction) the hammer movement will have less restriction and > will thus become less heavy. > > From: BobDavis88@AOL.COM > > Reply-To: pianotech@ptg.org > > Date: Sun, 7 Apr 2002 15:58:07 EDT > > To: pianotech@ptg.org > > Subject: Re: Quick action lubrication: > > > > Antares, > > How can the jack centers, repetition lever centers, and springs affect the > > down weight? > > Bob Davis >
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