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#611282 - 10/23/03 11:42 PM KAWAI UST-7 damper pedal/dampers
JIMBOB Offline
1000 Post Club Member

Registered: 11/18/02
Posts: 1323
Loc: South Carolina
Piano is a Kawai UST-7 that I tuned about a month ago. I was asked by the owner to come back and check out the dampers and damper pedal. Dampers to the keys okay but the pedal connection in the trap works needed a little adjustment of lost motion. There is an after ring or more of a sympathetic vibration evident in the midrange. Dampers seem solid on the strings and when you release the damper pedal they immediately damp the strings. still you can here some vibration./ sound. This is a weird pedal trap works where the damper pedal function is split- the damper rod and connection to the action is on the right side but there is a connection between the
damper pedal and the middle pedal that controls the bass dampers. I did notice that the stringing braid was more of a felt and that it was under the strings but sitting on the plate down near the hitch pins. Would adding braiding cloth between the back of the bridge and in front of the plate help at all with this lingering sound or is more tweaking needed on the pedal adjusters ?
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#611283 - 10/24/03 12:07 AM Re: KAWAI UST-7 damper pedal/dampers
BDB Offline
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Registered: 06/07/03
Posts: 22173
Loc: Oakland
Do you recall the similar problem recently discussed in the Piano Forum, where someone had an upright with the same problem? I wrote there about what needs to be looked at: whether the pedals and spoons are adjusted properly, and then Del Fandrich suggested adding lead fishing weights to the damper wires to add mass behind the dampers? I think that would give you the clues about what to do.
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