A-8
Cisco Firepower Management Center 750, 1500, 2000, 3500, and 4000 Hardware Installation Guide
Appendix A Replacing a RAID Battery Backup Unit Assembly on the Firepower Management Center 3500
BBU Replacement Instructions
Figure A-6
Installing the Replacement BBU Assembly
Replacing the Power Supply Air Duct
Replace the power supply air duct once the replacement BBU assembly is in place and connected (see
Figure A-7
).
To replace the air duct:
Step 1
Locate the power supply air duct and the thumbscrew that you removed previously.
Step 2
Align the power supply air duct over the BBU assembly, the power distribution board, and the matching
thumbscrew hole. Note that the thumbscrew attaches to a chassis standoff underneath the power
distribution board (see “4” in
Figure A-7
).
Make sure that no cables are pinched by any part of the power supply air duct before securing the duct.
Step 3
Tighten the thumbscrew using your fingers or a Phillips head screwdriver.
1
BBU and tray assembly
2
Chassis tabs
