Removing And Replacing A Fan Tray; Removing A Fan Tray From The Chassis - 3Com 3CB9E7 - CoreBuilder 9000 Chassis Switch Getting Started Manual

For the 16-slot chassis, attach the power supply
12
plastic air grille bezel:
With both hands, grasp the bezel and face the
a
front of the chassis.
Use the guide pins on the bezel and push the bezel
b
straight in to secure it to the front of the chassis.

Removing and Replacing a Fan Tray

This section describes how to remove and then
replace a fan tray for the CoreBuilder 9000 8-slot
chassis and the 16-slot chassis.
CAUTION: The CoreBuilder 9000 Enterprise Switch
generates a fan fault message and can continue to
run if one fan fails in one fan tray. However, if a
second or third fan fails, in that same fan tray, no trap
message is generated. Replace the fan tray within
48 hours of failure notification or contact your service
representative.
You can remove the fan trays and then install them
without powering off the Switch. This is called hot
swapping.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
these components fail, remove them as described
here and return the components to your supplier.
Keep replacement power supply units and fan trays at
your site so that they are available if needed.
Removing and Replacing a Fan Tray

Removing a Fan Tray from the Chassis

The CoreBuilder 9000 Enterprise Switch 8-slot chassis
can accommodate up to two fan trays. The 16-slot
chassis can accommodate up to three fan trays. Each
fan tray contains three fans.
To remove a fan tray from the 8-slot chassis or 16-slot
chassis, follow these steps:
Using a flat-blade screwdriver, loosen the six
1
spring-loaded screws that attach the fan tray to the
rear of the chassis (Figure 48).
Figure 48 The Six Spring-loaded Screws on the Fan Tray
85
Spring-loaded
screws