Cisco Firepower 4100 Series Hardware Installation Manual page 67

Maintenance and Upgrade
Warning
Statement 1046—Installing or Replacing the Unit
When installing or replacing the unit, the ground connection must always be made first and disconnected last.
Warning
Statement 1073—No User-Serviceable Parts
No user-serviceable parts inside. Do not open.
Warning
Statement 1077—Do Not Operate Unit Without Covers
The covers are an integral part of the safety design of the product. Do not operate the unit without the covers
installed.
You can remove and replace power supply modules while the system is running.
Step 1 To remove a power supply module, face the back of the chassis and grasp the handle.
Step 2
Press the latch found on the lower right of the power supply to disengage the power supply.
Step 3 Place your other hand under the power supply module to support it while you slide it out of the chassis.
Cisco Firepower 4110, 4120, 4140, and 4150 Hardware Installation Guide
Remove and Replace the Power Supply Module
63