DEC Rackmount 7000 AXP Installation And Owner's Manual page 121

11. Remove the ac input assembly while carefully guiding the cables to the ac
front end trays through the opening below the assembly.
It may be helpful to remove the I/O bulkhead plate cover below
the ac input assembly to help guide the ac front end tray cables
through the opening below the assembly.
To replace the ac input assembly, reverse steps 1 through 11.
When reconnecting the green/yellow ground wires, ensure that
the ground wire from the ac input line filter is secured against
the chassis wall with a separate nut before reconnecting the two
ground wires from the ac front end tray connectors.
Removal and Replacement
NOTE
WARNING
Removal and Replacement 5–57