1. Stop the drive and do the steps in section Electrical safety
precautions (page 18) before you start the work.
2. Use a suitable flat screwdriver to open the fan cover.
3. Lift out the fan cover and set it aside.
4. Lift and pull the fan from its base.
5. Disconnect the fan power cable from the extension cable connector.
6. Replace the fan. The arrow indicating the air flow direction must point up.
128 Maintenance