Instruction manual

5. Expansion, Replacement and Removal
197
5.5 Replacement of a fan unit
This section describes the procedures to replace the fan unit in the redundant power
model.
The fan unit can be removed while the switch is on.
5.5.1 Redundant power model (AX3630S, AX3640S)
CAUTION
When the fan unit is replaced while the switch is still on, do not leave the device for
more than three minutes without a replacement fan unit. Otherwise, a failure might
occur due to increasing temperatures inside the switch.
(1) Removing
[Step 1]
Loosen the screws of the fan unit.
Figure 5-11 Removing the fan unit 1
(1) Screws
[Step 2]
Hold the handle of the fan unit and pull it a little. Supporting the bottom, pull out the fan
unit.
Figure 5-12 Removing the fan unit 2