The soft pedal of the grand shifts the entire action to the right so that the hammers strike only two and in some cases only one of the strings.
The student should study the three types of actions from the actions themselves, if possible.
Action of the Grand Piano.
Action of the Grand Piano.
1. Indicates the felt, cloth or leather, upon which the various parts of the action rest, or fall noiselessly.
2. Key.
3. Bottom; sometimes called Key Rocker.
4. Extension; split at lower end to receive center pin in Bottom.
5. Wippen Support.
6. Jack.
7. Jack Spring.
8. Flange and Regulating Rail.
9. Regulating Screw, Button and Cushion.
10. Escapement Lever.
11. Regulating Screw in Hammer Flange, for Escapement Lever.
12. Check Wire, for Escapement Lever.
13. Screw to regulate fall of Escapement Lever.
14. Lever Flange, screwed to Flange Rail.
15. Hammer Shank.
16. Hammer.
17. Back Check.
18. Damper Lever, leaded.
19. Damper Wire, screwed into upright.
20. Damper Wire Guide, fastened to Sound-Board.
21. Damper Head and Felt.
0. Center Pins. Holes lined with Bushing Cloth.
Instructions for Removing the Square and Grand Actions.
First, feel or look underneath the keyboard and see if there are screws that go up into the action. In most of the better grade instruments the action is fastened in this way. If the screws have square heads, your tuning hammer will fit them and bring them out; if common screws, a screw-driver will suffice. Look through the opening in the sound board where the hammers strike and see that they are all down before pulling out the action, lest they break off by catching on the under side of the sound board. This is almost sure to happen if actions are out of order.