Threading Technology – Clamping Technology 520

648 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 4. Check torque by: • Measuring the position of the indicating pin using the depth measurement device • Reading the torque from the graph (the graph is fixed on the quick-change tap holder body) Example: HF 20, measuring depth 2.7 mm Torque read from graph: 625 Nm The max. torque is adjusted if the indicating pin matches with the quick-change tap holder diameter. Torque progression The following graphs are printed onto the quick-change tap holder near the adjustment unit in similar form. Torque [Nm] Measuring depth [mm] Torque progression for the quick-change tap holder HF 20 Example: Measuring depth 2.2 mm From graph: 750 Nm adjusted torque 0 1 2 3 4 5 0 250 100 500 750 1000 1300 Torque [Nm] Measuring depth [mm] Torque progression for the quick-change tap holder HF 30 Example: Measuring depth 2.75 mm From graph: 2000 Nm adjusted torque 0 2 1 4 3 6 5 8 7 10 11 9 0 500 250 1000 1500 2000 2500 3000 View turned by 90°