IV GRAND PIANO ACTION
The numbers for the grand action do NOT correspond with those of the uprights above.
If you think this action looks complicated, think of the poor fellow who had to
make the first on.
He must have lost his mind.
If this graphic is too big to print out, copy OR "capture" it with a utility which can resize it before you print.
| 1. Jack | 2. Key lever button |
| 3. Balance rail | 4. Key lever center pin |
| 5. Center pin felt bushing | 6. Jack adjustment button |
| 7. Jack adjustment screw | 8. Action metal frame |
| 9. Hammer butt rail | 10.
Hammer butt- Usually resting on sand paper |
| 11. Hammer butt stop screw- Stops rep. lever upward motion | 12. Roller or knuckle |
| 13. Butt stop screw | 14. Repitition lever |
| 15. Repetition lever spring with silk thread mounting | 16. Repetition stop hook- Adjustable |
| 17. Repitition lever adjustment screw | 18. Spoon- Jack control |
| 19. Jack spring with silk thread mounting | 20. Wippen flange |
| 21. Hammer rest rail | 22. Hammer rest rail cushion |
| 23. Repetition lever flange | 24. Capstan |
| 25. Hammer | 26. Back check |
| 27. Back check wire | 28. Damper felt contact point |
| 29. Back key rail cloth | 30. Wippen |
| 31. Jack button to adjust jack | 32. Wippen rail |
See a Grand Action in a virtual demonstration
Exceptional Grand Piano Action Link in several languages
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