68 Maintenance
Replacing the AC cabinet cooling fans
The cooling fans of the AC cabinet are mounted on the protective metal panel in the
cabinet.
WARNING! Obey the safety instructions on page 9. If you ignore the
instructions, physical injury or death, or damage to the equipment can
occur.
1. Before you start, stop the inverter and do the steps in Performing electrical work on
page 12.
2. Open the AC cabinet door.
3. Disconnect the power connector of the cooling fans.
4. Remove the cover of the cable tray above the fan assembly and take out the cables.
5. Remove the 8 screws that hold the fan assembly.
6. Disconnect the fan wiring.
7. Remove the 4 screws that hold each cooling fan and finger guard.
8. Remove the cooling fans.
9. Install the new cooling fans.
10. Install the finger guard and install and tighten the 4 screws for each fan.
11. Connect the fan wiring.
12. Put the fan assembly into position.
13. Install and tighten the 8 screws that hold the fan assembly.
14. Install the cover of the cable tray.
15. Connect the power connector of the cooling fans.
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