Huawei NetCol8000-A Maintenance And Troubleshooting Manual page 19

Semi-annual Maintenance - Outdoor
Unit (1)
Inspection
Item
Method
Visual
Rack
inspection
Visual
inspection
Visual
Fans
inspection
Operation
inspection
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Check Item
Ensure that the rack is secured to
the ground.
The fan connection box is intact
and secured.
The net cover and fow defecting
ring are independent of each other
and not deformed or damaged.
The fan runs smoothly without
abnormal voice or vibration, and
the blades rotate in the direction
as the symbols show.
Troubleshooting
Fasten the screws.
Secure the fan connection box.
Maintain or replace the net cover.
Replace the fan.
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