Installing A T640 Three-Phase Wye Ac Power Supply; Figure 226: Removing A Three-Phase Wye Ac Power Supply - Juniper T640 Hardware Manual

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CAUTION: Each three-phase wye AC power supply weighs approximately
31.0 lb (14.06 kg). Be prepared to support the full weight of the power
supply as you remove it from the router.
Place one hand underneath the power supply to support it and slide it completely out
16.
of the chassis.

Figure 226: Removing a Three-Phase Wye AC Power Supply

Installing a T640 Three-Phase Wye AC Power Supply

Each three-phase wye AC power supply weighs approximately 31.0 lb (14.06 kg). To
install a three-phase wye AC power supply:
Make sure that the voltage across the AC power cord leads is 0 V and that there is no
1.
chance that the power cord might become active during installation.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis.
Switch the power switch on the power supply faceplate to the standby position.
3.
Using both hands, slide the power supply into the chassis until you feel resistance
4.
(see Figure 228 on page
Twist the ejector handles at the upper corners of the power supply faceplate clockwise
5.
until they stop.
Tighten the captive screws at the lower corners of the power supply faceplate to
6.
secure the power supply in the chassis.
Using a slotted screwdriver, loosen the two screws securing the door of the metal
7.
wiring compartment.
Open the door of the metal wiring compartment.
8.
Place the retaining screw into the metal wiring compartment.
9.
Chapter 17: Replacing T640 Router Hardware Components
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