User`s guide

Repair and Replacement 3-13
Installing the Power Supply
To install the power supply, refer to the section Removing the Power Supply,
which is the reverse of the installation procedure.
Replacing the Main Chassis Fans
Replacing the main chassis fans involves removing the existing fan assembly
and installing a new assembly.
Removing the Fan Assembly
To replace the fan sub-assembly:
1. Disconnect power from the Switch by turning off the on/off Switch
(Figure 3-8, item 1) and then removing the power cord (Figure 3-8,
item 2).
NOTE:
The fan 3-wire power connectors are keyed. While removing the connector,
note its orientation on the motherboard mating connector for ease of re-installation.
SHR-1216A
0
2
4
6
8
10
12
14
3
5
4
1
2
Figure 3-8. Main Chassis Fans and Power Connections
2. Remove the four screws (Figure 3-8, item 3) at the rear of the Switch,
which secure the sub-assembly to the chassis rear panel.
3. Carefully lift the fan subassembly (Figure 3-8, item 5) up and away
from the motherboard and chassis rear panel until you can reach the two
power connectors on the motherboard.