Tool changeItem no. 13502000, Revision 0428 ( 36 )Note: Ensure functionality.All contamination damages the collet, clamping nut, tool mount, etc. As a re-sult, the function of the HF spindle is no longer guaranteed.u Clean the collet.u Clean the clamping nut.u Clean the thread of the shaft.u Clean the inner taper of the shaft.Ü Lightly grease the thread of the clamping nut.Ü Push the collet into the taper of the mount.Ü Insert the tool.Ü Make sure that the shank of the clamped tool does not press on the innerstop of the tool mount once the clamping nut has been tightened.Ü To prevent the clamping nut from loosening, tighten it again after a shortperiod of operation and when the shaft is at a standstill.10.2.1 Maximum tightening torquesShort clamping boreContinuous clamping boreExcessive tightening torques (MA) can damage or destroy the collet, clampingnut, and collet mount of the shaft.Keep to the following values.Ü Short clamping boreÄ Clamping diameter: 1,0 - 2,5 mmÄ Ma max.: 5 NmÜ Continuous clamping boreÄ Clamping diameter: 3,0 - 5,0 mmÄ Ma max.: 8 Nm