Avaya 8800 Maintenance Manual page 62

DC power supply replacement
4. Loosen the retaining screws on the power supply. See
5. Lift the extractor lever to disconnect the power supply from the backplane connector.
6. Slide the power supply partway out of the chassis.
7. Use a Phillips screwdriver and remove the screw that secures the plastic safety
8. Disconnect the positive and negative voltage leads from the power supply
62 Routine Maintenance
Before you continue with this procedure, ensure that the DC power source is
switched off.
retaining screws on the DC power supply
See Job aid: Disconnecting the DC power supply from the backplane
page 65.
cover to the power supply. Remove the cover. See the following figure.
Set the cover aside; you will replace it later.
terminals.
Job aid: Loosening the
on page 64.
on
March 2011