3com 4005 Istruzione Sull'Installazione
Removing a Fan Tray
39
Removing a Fan Tray
To remove a fan tray from the Switch 4005 chassis, follow these steps:
WARNING: The Switch 4005 chassis and its components (such as fan trays) must
be installed, maintained, or replaced only by trained service personnel. This guide
assumes that the network administrator has a working knowledge of local area
network (LAN) operations. Furthermore, this guide assumes that the network
administrator has obtained appropriate technical training and experience to
perform tasks in service access areas of network equipment, to be aware of
electrical hazards that exist in performing these tasks, and to take steps that
minimize the danger to themselves or other persons. If you have questions on
installation tasks, contact your network supplier or 3Com technical support. See
Appendix A for contact information.
be installed, maintained, or replaced only by trained service personnel. This guide
assumes that the network administrator has a working knowledge of local area
network (LAN) operations. Furthermore, this guide assumes that the network
administrator has obtained appropriate technical training and experience to
perform tasks in service access areas of network equipment, to be aware of
electrical hazards that exist in performing these tasks, and to take steps that
minimize the danger to themselves or other persons. If you have questions on
installation tasks, contact your network supplier or 3Com technical support. See
Appendix A for contact information.
Before you begin, have ready a flathead screwdriver.
1 Face the back of the chassis and using a flathead screwdriver, loosen the two
retaining screws that attach the fan tray to the chassis (Figure 15).
2 Grasp the fan tray around the edges with both hands, and begin to pull the fan
tray towards you.
CAUTION: If the chassis is powered on, one or both of the fans in the fan tray
may be rotating prior to removal. Once the fan tray is partially removed, the fans
will lose power and begin to rotate more slowly. Before you completely remove
the fan tray from the chassis, wait until both fans in the fan tray stop rotating
completely.
may be rotating prior to removal. Once the fan tray is partially removed, the fans
will lose power and begin to rotate more slowly. Before you completely remove
the fan tray from the chassis, wait until both fans in the fan tray stop rotating
completely.
Figure 15 Removing the Fan Tray
3 After the fans have stopped rotating, continue to pull the fan tray straight out
from the chassis.
4 Install a replacement fan tray as soon as possible. For procedures, see “Installing a
Fan Tray” next in this chapter.
Fan tray
Retaining
screw
screw
Retaining
screw
screw