3Com 4005 Installation And Maintenance Manual

Also see for 4005: Key Information Guide Datasheet

Contents

3Com 4005 Installation And Maintenance Manual Manual pdf 39 page image

Removing a Fan Tray 39Removing 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) mustbe installed, maintained, or replaced only by trained service personnel. This guideassumes that the network administrator has a working knowledge of local areanetwork (LAN) operations. Furthermore, this guide assumes that the networkadministrator has obtained appropriate technical training and experience toperform tasks in service access areas of network equipment, to be aware ofelectrical hazards that exist in performing these tasks, and to take steps thatminimize the danger to themselves or other persons. If you have questions oninstallation tasks, contact your network supplier or 3Com technical support. SeeAppendix 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 tworetaining 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 fantray towards you.CAUTION: If the chassis is powered on, one or both of the fans in the fan traymay be rotating prior to removal. Once the fan tray is partially removed, the fanswill lose power and begin to rotate more slowly. Before you completely removethe fan tray from the chassis, wait until both fans in the fan tray stop rotatingcompletely.Figure 15 Removing the Fan Tray3 After the fans have stopped rotating, continue to pull the fan tray straight outfrom the chassis.4 Install a replacement fan tray as soon as possible. For procedures, see “Installing aFan Tray” next in this chapter.Fan trayRetainingscrewRetainingscrew