Possibly the hammer rail is loose and moving inside the action bracket in the bass? I have found them loose before, but I can't remember if there was a noise associated with it. -John Parham > -------- Original Message -------- > Subject: Re: [pianotech] Bass Key Slap > From: "Don Mannino" <donmannino at ca.rr.com> > Date: Tue, March 29, 2011 7:28 pm > To: <pianotech at ptg.org> > > > My first thought is the keyframe needs bedding. > > Don Mannino > > -----Original Message----- > From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf > Of Arlie Rauch > Sent: Tuesday, March 29, 2011 4:27 PM > To: pianotech at ptg.org > Subject: [pianotech] Bass Key Slap > > I was tuning a customer's Steinway today, and she wanted me to look also at > her Schimmel grand. She heard noises, in the key she thought, in the lowest > notes. I couldn't hear it at first, but then I did when thumping the lowest > 8 or so notes--it sounded like a slap when the bottom of the key contacted > the front rail felt. First I thought maybe the front rail felt is too hard, > but on my hour-drive home, I thought maybe the cause is elsewhere. Why can > you hear that on the lowest bass notes, but when you play up higher the > sound is gone? Maybe something is loose at the bass end in the action or > the keybed. Any suggestions? I hope to remedy this sometime when I go > back. > > Arlie Rauch > Glendive, MT
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