INSTRUMENTS AND CONTROLS 94 The control system selection lever (1) is held in the correct posi- tion by means of a safety screw (2). When it is necessary to modify the control system, loosen the safety screw (2) until releasing the lever (1). Use a 13 mm span- ner. Select the desired control system and fix the lever in position with the safety screw (2). IMPORTANT IMPORTANT • Before moving the machine, the operator must make sure that the selected control system is the one that is required.