Planmeca ProMax Technical Manual page 198

Chapter E - C-ARM AND IMAGING ARM
The collimator will now be in a position where the screws that secure the collimator in place
are visible as shown below. The collimator blades can now be manually moved.
Then switch the X-ray unit off.
Disconnect both collimator cables (y-collimator motor cable and x-collimator motor cable).
Remove the upper collimator screw.
Figure 135
Manually lift up the lower blade so that you can reach the lower screw which is behind it.
Remove the lower screw.
Lower blade
Figure 136
You can now detach the old collimator from the tube head.
E-100 Planmeca ProMax
1
Upper screw
2
Lower screw
PROMAX 3D: REPLACING COLLIMATOR
Tube head
Collimator
Technical Manual