Mechanizm

 
The action

Picture 1:
Great care has to be taken to glue the hammers to the shanks. They have to hit the string at the striking point and have also to travel past each other.

Picture 2:
The dampers are linked to the action by a lever system.The wires have to be inserted with precision to assure an even lift

Picture 3
The damper heads have to be aligned to mute the strings effectively and to avoid interfering noises when pressing the damper pedal.