Backcheck height should be set so that the top of the check is 1/16" lower than the bottom of the tail when the hammer is at the point of let-off. This is assuming a 1" tail. That will result in proper checking. David Love ----- Original Message ----- From: <Maxpiano@AOL.COM> To: <pianotech@ptg.org> Sent: December 26, 2001 4:54 PM Subject: Steinway Backcheck Dimensions > List, > > I ordered "Steinway Style" backchecks from Schaff for a 1890's vintage S&S B > and find the new parts (Tokiwa) are 1/4" longer than the old. Should I > screw down to match the height (top) of the old backchecks, match the > bottoms, or in between? I seem to recall reading about some recommended > modification (Journal?) that leaves the hammers checking higher. I just > don't want to waste time experimenting if someone on the list would be kind > enough to steer me straight! > > Bill Maxim, RPT > Maxim Piano Service > 212 Newpark Place > Columbia, SC 29212-8666 > (803) 732-9225, FAX (803) 732-2641 > wmaxim@aol.com >
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