F Series - HF Router Maintenance and Adjustment of Spindle Collet

Modified on Tue, 16 May 2023 at 09:18 PM

The video explains how to clean and adjust the HF collet on the HF milling motor of a F series.

Collet setting process:

In your current system 4041 DC-S with collet C4, your collet set process is as follows: 

  • Apply compressed air
  • Screw in collet with inserted tool or c-lock pin
  • Adjust the stroke by loosening the collet ½ turn
  • Insert and tighten the set screw to prevent the collet from turning 
  • Insert tool 
  • Stop compressed air supply 

Attention: The collet is not protected against rotation/loosening if the set screw is not firmly tightened.  


  • Clean the collet every week and insert it according to the set process
  • During yearly maintenance, it is recommended to replace the collet to ensure the clamping power


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