As Barbara mentioned, Paul, it is not always necessary/desirable that pianos need to shift a full string with the una corda. It is a very common set-up to have the hammers shift so that all three strings are still being struck, in a position that is about 1/2 to 2/3 of the way to a full string shift. This allows one to alter the tone color while playing with the una corda fully depressed, rather than simply having a reduction in volume on full shift (two strings being struck in the grooves, while the third is missed). This being said, if you undertake to adjust the shift distance, it would be wise to first check the hammer to string spacing to make sure that is dead on. If the hammer to string spacing is inconsistent, anything you do with the una corda is going to be inconsistent as well. Of course, now you might be into a situation that requires shaping hammers, aligning the hammers to the strings, then adjusting the shift distance properly, THEN dealing with string leveling and voicing which will have changed............and so on. ;-] I think Owen and Don gave you some good info as well, depending upon your situation. Your quickest might be examining the key end felts. It wouldn't be uncommon to have the felts cut sloppily and consequently grabbing the neighboring underlever in shift position. William R. Monroe >A client has a Young Chang TG-150, mfg in 2000. When I press the shift > pedal, it doesn't go down very far, and the action does not shift far > enough to play only two strings. I adjusted it so that it would shift > farther, but then the dampers of the wound bichords to the right of > the break (there are about eight such notes) would lift in pairs... > Any ideas? > Thanks, > Paul Bruesch > Stillwater, MN
This PTG archive page provided courtesy of Moy Piano Service, LLC