Installation ManualH3C S7500 Series Ethernet Switches Chapter 6 Hardware Maintenance6-7Caution:If you want to replace the fan tray when the switch is working, separate the fan tray fromthe backplane to disconnect the power and wait till the fan stops rotating before pullingit out completely. Considering that the fan may be still rotating, avoid stretching yourhands into the fan tray.2) Slide the fan tray out of the slot. See ② in Figure 6-4.3) Put the removed fan tray into the package.Caution:Install a new fan tray soon after removing the old one to ensure that the switch can worknormally.II. Installing the fan trayFollow these steps to install the fan tray (just in the opposite way you remove it):1) Take a new fan tray out of the package and slide the fan tray along the guide railsinto the slot until it is securely seated in the backplane.2) Fasten the captive screws on the fan tray.6.5 Removing and Installing the Power Distribution BoxYou can install and remove different types of power distribution box in the same way.The following describes how to install and remove a dual-input and dual-switch ACpower distribution box.
