PTG Technical Bulletin #2 (Regulation) Question.

Ron Nossaman RNossaman@KSCABLE.com
Fri, 14 Jul 2000 14:32:08 -0500


Well hey, if you are talking about "steps" instead of "adjustments" you've
got to include:
10a-13a) knock center rail punchings off table onto floor
10b-13b) pick up center rail punchings
15a & 22a) knock front rail punchings off table onto floor
15b & 22b) pick up front rail punchings
15c & 22c) stab finger repeatedly with custom sharpened punching grabber
tweezers
and last but not least:
38a) sort all punchings back to their individual containers,
 or
38b) dump all loose punchings into a large, full can of miscellaneous
punchings,
 or
38c) sweep up and throw away all punchings that aren't still in their
containers,
 or
38d) leave the bloody (literally, see steps 15c & 22c) punchings on the
floor forever to teach the little suckers a lesson.


>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


Ron N


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