Cisco WS-C4003-RF Hardware Maintenance Manual - Page 96

Accessing the Router Internal Components Removing the Component Tray Some Cisco 4000 series routers have a safety latch tab on the chassis that affects removing the component tray. (See Figure 5-1 and Figure 5-2.) If you have a chassis with a safety latch tab, follow the procedure in the following section "Removing the Component Tray from a Chassis with a Safety Latch". If you have a chassis without a safety latch tab, follow the procedure in the section "Removing the Component Tray from a Chassis without a Safety Latch" later in this chapter. Removing the Component Tray from a Chassis with a Safety Latch Warning Hazardous voltages may exist in or near the power supply, so use extreme caution when working near the power supply. Before starting any of these procedures, turn off power to the system, unplug the power cord, disconnect any cables at the ports, and connect your ESD-preventive wrist strap. Follow these steps to remove the component tray from a chassis with a safety latch. Step 1 Turn off the system power. Step 2 Put on your ESD-preventive wrist strap. Step 3 Remove all network and power cables. Step 4 Loosen the (nonremovable) screw in the back of the chassis, labeled Chassis release screw in Figure 5-1. Step 5 Slide the component tray out of the chassis shell while facing the chassis rear panel, pulling the handle on the right side of the chassis until the safety latch catches. (See Figure 5-1.) Warning Before releasing the safety latch, support the component tray from underneath, either on your work surface or with your hands, to prevent personal injury. (See Figure 5-1.) 5-2 Cisco 4000 Series Hardware Installation and Maintenance