Removing A Ptx5000 60-A Dc Pdu Power Cable - Juniper PTX5000 Hardware Manual

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Removing a PTX5000 60-A DC PDU Power Cable

Each 60-A DC PDU has eight input power trays. Each input power tray is hot-insertable and hot-
removable, and weighs 1.6 lb (0.7 kg).
To remove a 60-A DC power cable (see
1.
Switch off the customer-site circuit breakers to the input power tray that contains the DC power
cable being removed.
2.
Make sure that the voltage across the DC power source cable leads is 0 V and that there is no
chance that the cables might become active during the removal process. On the PDU faceplate,
verify that the DC IN LEDs are off for both inputs in the input power tray being removed
3.
On the PDU faceplate, switch the input power switch for the input power tray to the off (O)
position.
4.
Loosen the captive screws that secure the input power tray to the PDU.
5.
Remove the input power tray from the PDU.
Figure 226: Removing the Input Power Tray
6.
Use a Phillips (+) screwdriver to loosen the screw on the metal input power tray cover.
7.
Open the metal input power tray cover.
8.
Loosen the cable restraints.
9.
Use a 7/16-in. (11-mm) nut driver to loosen the nuts, and remove the nuts from the DC power
terminal stud.
Figure
6):
426

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