Tool changeItem no. 10402003, Revision 0228 ( 40 )10.2.1 Changing the toolNote: Ensure concentric run-out quality.u Only use tool mounts, clamping nuts, and clamping devices that are bal-anced according to DIN ISO 1940 balance grade G DIN ISO 1940.1 End face2 Clamping nut (optional accessory)3 Collet (optional accessory)4 Tool Holder (optional accessory)5 Clamping device (optional accessory)Proceed as follows to change the tool:Ü Screw out the clamping nut type "D" and type "ER".Ä The collet is also pulled out in the process.Ü Use the hook wrench to unfasten the clamping nut type "ER-MS" and thecollet.Ä Make use of the hook wrench from the scope of delivery of the HF spindle.Ü Remove the tool.Ü Remove the collet type "D" and type "ER" from the clamping nut.Ü Remove the collet type "ER-MS" from the taper of the mountNote: 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.Sample illustration:Clamping nut typeÜ Clamping nut type "ER-MS":Ä Push the collet into the taper of the mount.Ü Clamping nut type "D" and type "ER":Ä Push the collet into the clamping nut until it engages in the groove pro-vided for this purpose.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.