Hi list, Frank Cahill wrote I tuned a kawai KG-1 today. It's a gray market piano...two pedals. There was very little let-off and in some cases, no let-off. Frank, this symptom is not unusual for a Kawai KG action. The geometry (ie. built in friction) of the KG jack at the let-off button is one of the best examples of poor action design in the business. Try mounting a wippen on the workshop bench (hold it horizontally by clamping the wippen flange onto a support block), substituting the let-off button with a plain wooden dowel (also held horizontally). Examine the relative motion between the jack tender and the let-off button during escapement. And how does the KG let-off button cloth survive under real life service? It doesn't! As the jack tender gouges a groove in the felt the let-off setting moves toward the string. Ron E. Overs Sydney, Australia Email: ron@overspianos.com.au Website: www.overspianos.com.au
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