Threading Technology – Clamping Technology 520

647 Tap Holders Soft- synchro Speed- synchro KSN MQL SFM HF EM Accessories Tech. Info Product Finder 7.9 Adjusting the overload clutch of quick-change tap holders type HF Adjusting the torque of the overload clutch The torque to be set depends, among other things, on the type of machining and on the workpiece material to be machined. If the exact torque is not known, we recommend setting a low value first, and approaching the correct torque value step by step. 1. Clamp the quick-change tap holder in the machine spindle. Attention : The adjustment must not be carried out while the machine spindle rotates! Required tools: • Hexagon socket wrench with pin, width across flats 10 mm • Depth measurement device or caliper gage with depth measurement Machine spindle Indicating pin Graph Tool Adjustment screw Quick-change adapter 2. For torque adjustment, the marking rings must coincide. If this is not the case, proceed as follows: • Put machine into operation • Let the tool start the cutting process • Stop machine Attention: Repeat this until the marking lines coincide! Marking lines 3. Adjust torque by turning adjustment screw. Attention: Do not use any extension for adjusting the torque! Left turn = Reducing torque Right turn = Increase of torque