Service and repairsItem no. 10202024, Revision 0232 ( 36 )HF spindle becomes loud Cause TroubleshootingTool unsuitableq Only use balanced tools.(Also see the "Tools for high speed cutting [} 26]" section.)q Check the tool for damage.q Replace damaged tool.HF spindle is notclamped truly or is dis-tortedq Only use spindle holders from the original accessories orholders produced according to the tolerances specified byAlfred Jäger GmbH.HF spindle clampedtoo tightlyq Only tighten the clamping screws of the spindle holdermanually.q Do not use technical aids to clamp the HF spindle.Bearings damaged q Contact Alfred Jäger GmbH service.Sensor does not send anysignalsCause TroubleshootingNo connection to sen-sor q Check the lines and connections.