Planmeca ProMax 3D Max with ProTouch Technical Manual page 167

Technical manual
In case the ±1 mm deviation cannot be reached by moving the patient
support table, the position of the shoulder arm can be adjusted as
follows.
1. Make sure that the transportation pin is in the hole in the shoulder
joint.
2. Loosen the screws of the adjustment plate (1) and move the
shoulder arm plate (2) to required direction so that the shoulder arm
moves (3) and the line on the alignment ruler is in correct position.
5 Panoramic and 3D calibrations
Planmeca ProMax 3D Max 161