MC650 SECTION BENDING MACHINE INSTRUCTION BOOK 12Adjust the range of intensities of the motor guard contactors:Depending on the power voltage, the working intensity also varies, and it is therefore necessary to alsomodify the working range of the motor protection devices. The motor guard contactors are secured to theelectrical panel as shown in section A3. Electrical BoxThe motor guard contactor have a structure like the ones shown in the diagram below and allow a rapidadjustment through the regulator located at their front.The right-hand contactor is responsible for protecting the main motor:The regulator indication arrow must be around “5A” for 230V three-phase connection. In the case of a 400Vthree-phase connection, this must be around “2.6A”.The left-hand contactor is responsible for protecting the hydraulic motor:The regulator indication arrow must be around “3.5A” for 230V three-phase connection. In the case of a400V three-phase connection, this must be around “2A” .*If the motor guard contactor cannot assume the intensity range required, this must be replaced with onewith a greater range.Figure 9. Intensity range adjustmentWe recommend contacting the Technical Service Department of NARGESA S.L.if you wish to change the operation voltage of the machine in order to be guided and assistedthrough the procedure.