Procedure:
1. Remove the S120 Combi front cover (see also: This is how you remove the front panel
2. Remove the Torx-slotted screw of the fan cover.
3. Remove the fan cover,
Service cases - hardware
4.10 SINAMICS S120 Combi
Software and hardware
Service Manual, 08/2018, 6FC5397-5DP40-6BA1
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