Dell PowerConnect J-8208, Hardware Manual

Page: 171 / 276

•
Read “General Safety Guidelines and Warnings for J-EX Series Switches” on page 207,
with particular attention to “Chassis Lifting Guidelines for J-EX8200 Switches” on
page 220.
•
Ensure that the switch has been safely powered off (see “Powering Off a J-EX8200
Switch” on page 151) and that you have unplugged (disconnected) the power cords to
the power supplies.
• Ensure that you have disconnected any cables or wires attached to the switch ports.
CAUTION: When removing more than one switch from a rack or cabinet,
remove the switch in the top of the rack or cabinet first and proceed to remove
the rest of the switches from top to bottom.
Ensure that you have the following parts and tools available to remove the switch:
• A mechanical lift
•
A Phillips (+) screwdriver, number 2 or number 3, depending on the size of your rack
mounting screws
• If you installed the switch with square-hole cage nuts, a flat-blade (-) screwdriver to
remove the cage nuts
To remove the switch using a lift (see Figure 78 on page 156):
1.
Use the appropriate Phillips (+) screwdriver to remove the 24 mounting screws—and
washers if you installed the switch with cage nuts—that attach the chassis
front-mounting brackets to the rack or cabinet.
2.
Move the lift to the rack and position it so that its platform is centered about 0.5 in.
(1.27 cm) below the bottom of the switch chassis and as close to it as possible.
3.
Carefully slide the switch from the adjustable mounting brackets attached to the rack
onto the lift.
4.
If you installed the switch with cage nuts, remove the cage nuts from the rack.
Use Figure 76 on page 155 or Figure 77 on page 156 to help you with cage-nut removal.
Figure 76: Removing a Round-Hole Cage Nut (Clip Nut)
g040638
155
Chapter 12: Removing the Switch