Fan Tray AssemblyThe following procedures describe the removal and replacement of the fan tray assembly. Beforeperforming the following procedures, read the “Safety Notices” on page xi.The three system cooling fans rest in a fan tray. The fans can remain in the tray while the tray is removedor replaced.Removing the Fan Tray AssemblyTo remove the fan tray assembly, do the following:1. Stop the system as described in “Stopping the System” on page 282.2. Place the system into the service position as described in “Placing the Model 6C3 into the ServicePosition” on page 284 or “Placing the Model 6E3 into the Service and Operating Position” on page286.3. Disconnect the power source from the system.Note: This system may be equipped with a second power supply. Before continuing with thisprocedure, ensure that the power source to the system is completely disconnected.4. Remove the service access cover as described in “Removing the Model 6C3 Service Access Cover”on page 288 or “Removing the Model 6E3 Service Access Cover” on page 289.5. If your system does not contain a SCSI media device in the SCSI media-device bay, go to the nextstep. To identify the SCSI media device locations, see “System Locations” on page 9. If your systemdoes contain SCSI media device, do the following:a. Remove the front bezel as described in “Removing the Model 6C3 Front Bezel” on page 291 or“Removing the Model 6E3 Front Bezel” on page 292.b. Press the blue media-bay-chassis latches and pull the media bay chassis forward in the systemchassis but do not remove it from the system chassis. To identify the media-bay-chassis latches,see the illustrations in “Removing the Media Bay Chassis” on page 345.6. Locate the fan tray, as shown in the following illustration.7. Release the LED light-pipe plate attached to the fan tray by pressing the latch attached to the diskdrive backplane and rotating the plate up and off of the LED light pipes.8. Pull up on the two blue locking knobs located at either end of the fan tray until you feel them unlock.9. While holding the blue plastic latch on the back of the disk drive backplane, lift up on the end of thefan tray that is next to the latch until it clears the latch.10. Using the two blue locking knobs at either end of the fan tray assembly, lift it straight up and out ofthe system unit.11. If you are removing the fan tray as part of another procedure, return to that procedure. If you areremoving the fan tray because the fan tray itself is damaged or failing to operate correctly, remove thethree hot-swap system fans from the fan tray as described in “Removing a Hot-Swap System Fan” onpage 318.Chapter 9. Removal and Replacement Procedures 321
