WARNING!
Wear protective gloves and long sleeves. Some parts have sharp edges.
1.
Repeat the steps described in section Electrical safety precautions (page 36) before
you start the work.
2. Remove the shrouding in front of the fan (if any).
3. Disconnect the fan wiring. Remove the CIO module.
4. Remove the two screws and slide the fan unit out.
5. Remove the four screws to detach the fan from the fan unit.
6. Remove the eight screws surrounding the fan unit.
7. Install a new fan in reverse order.
66 Maintenance
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