18
EN – ENGLISH
6. Increase skull clamp force by advancing the Force Applicator to the desired setting as
denoted on the visual readout, and then back off one quarter turn.
Figure 14
NOTE:
The visual readout on the Force Applicator gives the surgeon the clamping force being
applied.
Force Applicator
Visual Readout
Thumbscrew
Torque Screw
Line Indicator
Clamping
Force
1
2
3
4
=
=
=
=
20 lbs. (89 N)
40 lbs. (178 N)
60 lbs. (267 N)
80 lbs. (356 N)
Figure 15
NOTE:
To achieve independent fixation for adults, it is recommended that a minimum of 60 lbs. (267
N) of force be applied by the Skull Clamp. An additional force of 80 lbs. (356 N) is available if desired.
WARNING!
WARNING: Loading in excess of 80 lbs (356 N) is
NOT RECOMMENDED.