Hi John.. One thing you might check... On most pianos there is a screw on the back side of the action rail between the treble and tenor sections. The head of this screw sits up against the plate and serves to make the action a bit more stable. If it is screwed out too far it will cause the rail to bend outwards. Most often this break area is then furthest out of line, but sometimes the bend gets "pushed" somehow more towards the middle. This screw seems like its one of those little things very often overlooked when regulating a piano. It wouldnt suprise me at all if the piano has been "well regulated" with this screw pushing the action rail out in the middle a bit. The result would probably be very much like what you describe. On the side... if this same screw is screwed into the action rail too far such that it does not contact the plate, you can often experience all kinds of weird regulation stability problems. I had big problems not to long ago with double hits / checking on a Grotrian upright. Couldnt figure out what the frig the problem was until I thought to check this. It was out to far and adjustment to fit snug up to the plate immediatly solved the entire problem, and the "feel" of the action changed dramatically also. More solid and even. In anycase.. this is just one thing to check. Good luck ! , and let us all know what the solution turns out to be. Richard Brekne I.C.P.T.G. N.P.T.F. Bergen, Norway John Lau wrote: > Hi folks, > > I have a 5 yr old Steinway upright (model 1098) with a heavy > touch and a lack of dynamic range. It was thought that the > touch will become lighter as it's being used and the bushings > loosen up. But after 5 years of moderate use, the touch has > not changed much. After numerous regulations and checkings > with up and down weights, the problem (feel) still exist. The > piano is located in the basement of a house but in a farily > constant temperature and humidity environment. > (16 to 20deg C, 39%-45% humidity) The piano is in good > shape and is well cared for. The only exception is that > the action rail bows towards the front (looking down from top). > At the maximum, it's about 3/16 to 1/4 in from a straight line > drawn between the two ends. This is confirmed by looking at the > rub marks the capstains contact the wipens. Does anyone > has ideas what the problem is? Any solutions/suggestion? > > Your input is much appreciated. > > John Lau (Vancouver, Canada)
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