Mike Bigham rote, 4/10: <<When I checked the una-corda I discovered that the keyframe was riding on the unacorda lever so I released the "suspension" and checked the voicing and found that tone was very weak.>> When this bandaid is successful, it's usually to move the set of hammers which may be minimally grooved over just enough so tha the hammer can strike with a part of its crown which is curved instad of flat. But if the tech knows how to apply the bandaid correctly, he/she will put a shim between the keyframe' bass side and the bumper block. That way, the continuous pressure of the shift return spring can be born by the bumper block which is a.) solid, and b.) first in line among the things which will receive that pressure. Doing as your "he-who-does-no-wrong" tech did puts that pressure on parts below (shift lever mounting blocks, rod bushings, and pedal centers). Because they are responsible for providing the shift, they are not solid and shouldn't be asked to should that pressure continuously. The usual shim is a business cards halfway down the length of the bumper block. After a few months, you fold it double. (And, yes, do takemout the play in the UC pedal.) Bill Ballard RPT NH Chapter PTG "When writing a mental note, first procure a mental piece of paper" ............mental graffitti
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