Xerox 4540 Service Manual - Page 164

Caution - Before handling components, attach an antistatic wrist strap to bare metal on the chassis. The system's printed circuit boards and disk drives contain components that are extremely sensitive to static electricity. The system designation of the power supplies in the server is shown on the service label. 1. If present, remove the cable management arm, or swivel open the cable management arm to view the power supplies. To replace the cable management assembly if necessary. See one of the following docs depending on your CMA version: ■ Sun Fire X4500/X4540 Installation Guide ■ Sun X4500-J Slide Rail Installation Guide (X4500) ■ "Early-Production Slide Rail and CMA Information" on page G-1 (X4500) 2. Disconnect the AC power cord that is connected to the power supply you want to replace. 3. Remove the installed power suppy unit by pulling its handle downward until it disengages the unit from the connector on the PDB. Pull out the power supply. ▼ To Install a Power Supply 1. Align the power supply with the empty bay in the chassis. 2. With the power supply handle in the down position, push the power supply into the power supply bay. The power supply will stop about three-quarters of the way into the bay when it meets with the connector on the PDB. Lift the power supply handle up until the power supply fully engages with the PDB (indicated when the thumb-latch clicks into place). The power supply should be flush against the chassis. 3. Connect the AC power cord to the new power supply. Use the power cord retaining clips to keep the power cord secure. 4. If present, swivel the cable management arm back into the closed position. 3-44 Sun Fire X4500/X4540 Server Service Manual • May 2010