W&H S-11 L G Instructions For Use Manual page 37

Reassemble angled handpiece
S-9 L G, S-9, S-10, S-12
Note the positioning of the area of chuck lever.

Insert the shaft into the handpiece head.
Insert chuck lever (a) and turn it to initial

position (b).
Only S-9 L G: Position the golden contacts on

the shaft and handpiece head so that they are
facing each other.
Push the shaft into the handpiece head.

37