>...For the life of me I can not come up >with 35 "points of adjustment"... >Doug Mahard >From Yamaha's Grand Piano Action Regulating in 37 steps I picked up a long time ago from a class by La Roy Edwards: 1) Tighten action screws 2) Key frame - front rail 3) Key frame - center rail 4) Keys - front bushing 5) Keys - center bushing 6) Keys - balance pin hole 7) Action centers 8) Travel hammershanks 9) Hammer angle 10) Hammer alignment to strings 11) Height of white keys 12) Level of white keys 13) Height of black keys 14) Keys - spacing 15) Depth of white key 16) Wippen alignment 17) jack adjustment 18) Repetition lever height 19) Hammer height 20) Hammer height level 21) Let off 22) Black key depth 23) Drop 24) Aftertouch measurement 25) Back check alignment 26) Back check angle 27) Hammer catching 28) Repetition spring 29) Key stop rail 30) Damper wire guide bushing 31) Damper lift from key 32) Damper lift from lifting rail 33) Damper pedal adjustment 34) Damper pedal stop adjustment 35) Damper stop rail 36) Sostenuto 37) Soft pedal adjustment Keith McGavern Registered Piano Technician Oklahoma Chapter 731 Piano Technicians Guild USA
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