Cisco Firepower 4100 Series Maintenance And Upgrade Manual page 15

Maintenance and Upgrade
Figure 8: Insert the Cables
Step 8 Tighten the M5 screw with the captive washer to the recommended torque of 5 in-lbs for the positive stud and wire.
Secure the wires coming in from the terminal block so that they cannot be disturbed by casual contact.
Figure 9: Tighten the M5 Screws
Step 9 Replace the terminal block plastic cover. The plastic cover is slotted and keyed to fit correctly over the terminal block.
This cover should always be in place when power is applied to the terminals.
Connect the DC Power Supply Module
Maintenance and Upgrade
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