Removal and Replacement Procedures
3–9
3.3.3
Removing and Replacing the Card Cage
To gain access to the fan assembly, power supply, or backplane, you must first re-
move the card-cage assembly from the bridge enclosure.
3.3.3.1
Removing the Card Cage
CAUTION
!
Do not leave the card cage partially withdrawn for serv-
icing. Remove it completely from the enclosure and set
it down on a horizontal surface.
To remove the card cage from the bridge enclosure, refer to Figure 3–4 and follow
these steps:
1. Remove power to the bridge and disconnect the interface cables (Section 3.2).
2. Attach the ESD ground strap.
3. Using a Phillips-head screwdriver, loosen the two quarter-turn fasteners at the
upper corners of the bridge enclosure.
CAUTION
!
The card cage weighs approximately 11 kg (24 pounds).
Support it well and handle it carefully during removal to
avoid dropping it.
4. Firmly grasping each side of the card cage, slide it completely out of the
bridge enclosure and set it down on a sturdy horizontal surface.
