Maintenance 141
Fan at the bottom of the circuit board compartment:
1. Stop the drive and do the steps in section Electrical safety precautions on page 16
before you start the work.
2. Open the cabinet door.
3. To remove the marine supports in drives with option +C121
, see Replacing the drive
and LCL filter modules (frame R11) on page 144.
4. To open the swing-out frame, undo the M10 bolts from top and bottom (4 pcs). The fan
locates in the bottom part of drive module circuit board compartment.
5. Undo the mounting screw of the fan cassette.
6. Pull the fan cassette out:
7. Unplug the power supply cable of the fan.
8. Undo the mounting screws of the fan.
9. Install the new fan in reverse order to the above. Make sure that the arrow in the fan
points up.
10. Close the swing-out frame, reinstall the 4 screws and marine supports (option +C121
)
and close the cabinet doors.
11. Reset the counter (if used) in group 5 in the primary control program.
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