Optika Italy SZ Serie Mode D'emploi page 22

5. For a bigger safety, lock the fixing screw ② with
the provided Allen wrench. (Fig. 18)
6. Install the head holder. Unscrew the prevention
knob ③ and insert the head holder from below
in the vertical arm. Lock the fixing knob ④. At
the end screw again the prevention knob ③. (Fig.
19-20)
Page 22
②
③
④
F ig. 18 F ig. 18
F ig. 19 F ig. 19
F ig. 20 F ig. 20