￭ Replacing the main cooling fan of frames R4 and R5
1.
Stop the drive and do the steps in section Electrical safety precautions (page 17)
before you start the work.
2. Lift the fan mounting plate up from the front edge.
3. Unplug the power supply wires.
4. Lift the fan assembly off.
5. Install the new fan assembly in reverse order. Make sure that the fan blows upwards.
6. Reset the counter (if used) in group 5 in the primary control program.
Maintenance 165
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