Maintenance
Operating_Manual_Fan_KXE_04_en.docx
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Fan configuration with shaft earthing (optional):
Check the shaft earthing once a month using the procedure
as follows.
Procedure for checking the shaft earthing:
Allow the fan to run down and switch it off
Wait until the impeller comes to a complete standstill
Secure the fan against unintentional restart
Remove the protective hood beneath which the shaft
earthing is situated (protective hood is indicated with a
corresponding information plate)
Check the thickness of the carbon brush:
- Good: If thickness > 10 mm, measured up to the
retainer
- Poor: If thickness < 10 mm
Carbon brush is worn
Replace the carbon brush
DANGER
Worn or non-functioning shaft earthing!
Fatalities or extremely serious injuries from explosions
resulting from the generation of sparks.
→ Inspect condition of the shaft earthing with the impeller
at a complete standstill.
→ Ensure that the grinding surface of the carbon brush
makes light contact with the shaft.
→ Replace worn carbon brushes.
13.4 Shaft earthing
Fig. 13-7 Shaft earthing
information plate
Fig. 13-8 Shaft earthing complete
1 Retainer
2 Carbon brush
1
2
