Cisco 8800 Series Hardware Installation Manual page 126

Replace HVAC and HVDC Power Module
Procedure
Step 1
Do not Power OFF (0) the standby mode switch.
Figure 83: HV Power Tray Standby Mode Switch
Step 2
Slide the power module out of its bay while supporting it with your other hand to remove it.
Figure 84: HV Power Supply
Step 3 Slide the new power module into the bay until it mates with its connector.
Hardware Installation Guide for Cisco 8800 Series Routers
120
Replace Chassis Components