The spectrometer motors may only be controlled by trained personnel. At least two people are required for spectrometer rotation, one to run the motors and at least one spotter. Prior to rotating the spectrometer a visual inspection of the area should be made to insure that there is nothing in the spectrometer's path or on the rails. During rotation the spotter should pay special attention to the cables which run from the spectrometer to the target motor controller to make sure that nothing is hung up or stretching.
In case you need to rotate the spectrometer manually, contact one of the trained personnel listed in Responsible Personnel (chapter 4) in the ESAD.