Cisco ASR 5000 Series, Installation Manual

Page: 225 / 317

Replacing a Power Filter Unit
Installing the Replacement PFU ▀
ASR 5000 Installation Guide ▄
225
Step 3
Use a Phillips #2 screwdriver to tighten each of the four screws on the PFU to secure it to the chassis.
Step 4
Use a Phillips #2 screwdriver to remove the plastic cover from the power terminals.
Each of the four power terminals is shipped with one nut and two washers. The 165A PFU has one lock-washer and one
flat washer.
W
ARNING
:
To avoid electric shock, ensure that the power source is off before attaching power cables to the
PFU(s) installed in the chassis. Spannungsversorgung abschalten vor Anschluss der Kabel an die Netzteile, um einen
elektrischen Schlag zu vermeiden.
Step 5
Use a Phillips #2 screw driver to remove the plastic cover from the power terminals.
Step 6 Use a 9/16-inch nut driver or socket wrench to remove the nut and the lock-washer on the PFU from each of the four
terminals.
Step 7 Fasten the lug attached to the power return cable to the PFU:
Step a Insert the lug over the two terminals labeled RTN. These are the two top terminals on the PFU.
Step b Secure the lug to the RTN terminals using two of the four washers and two of the four nuts that
were removed in step 3. The nuts on the PFU should be torqued to 50 in-lb. (5.65 N-m).