USER GUIDE Electrical Nut-Clamp Torque Control Device Power Clamping Unit for Collet Chucks Safety precautions: never hold or touch the cutting tool, chuck or machine spindle during operation. Choose the correct wrench size. Mount it Auxiliary Devices on the wrench holder. Place the wrench on the collet chuck nut. Mount the collet chuck into the unit spindle. Ensure that main power switch is on and that the power supply Main switch cable is connected. To clamp - Push and hold in the “clamp” button until the bottom light goes off. Torque Selector NEW Power Lamp To unclamp - Push and hold in the “unclamp” button until the collet chuck is totally open. Note: Assemble the collet and cutting tool. By hand, place the nut onto the collet chuck. Trolley (optional) 700 340 510 630 500 510 550 540 600 976 ISCAR