Operator and engineer must know exactly all the risks coming from laser use. The working bay
can not absolutely be a trespassing area of things or people, the working bay must be well visible
and limited by a yellow line and, if it is possible, by a fence.
Verify that people are not in the working bay area before testing, unlock the column, pressing the
skate. Turn the visor to the floor direction and switch on the headlight beam tester. Find two
symmetrical points on the forward car body (ex: the beams themselves). Move the tester in front
of the car, turn the optical box till the two points will coincide with the light projected by the laser
and then lock the column.