Chapter 3
Removing and Replacing Components
Removing and Replacing the Front-End Power Supply
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Step 9. Remove the four Torx T20 screws securing the FEPS to the front of the cabinet.
Figure 3-14Removing the FEPS
Step 10. Grasp the FEPS chassis and remove it from the cabinet
Step 11. Set the failed FEPS chassis aside to be boxed and retuned to the nearest service center.
Replacing the FEPS
Step 1. Place the new FEPS into the appropriate opening in the cabinet and carefully slide it toward the
back of the cabinet and align the four studs with the holes in the power busbar.
IMPORTANT Be careful not to butt against the power busbar and risk bending or breaking it.
Step 2. Once the studs and holes are aligned correctly, slide the FEPS into the cabinet until its front
flanges are flush with the cabinet rack.
Step 3. Secure the new FEPS with four Torx T20 screws. See Figure 3-14 for details.
Step 4. Replace all BPSs.
Push the power supply into the FEPS and tighten the single captive thumbscrew in the lower front
center portion of the BPS.
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