Installing A T640 Three-Phase Wye Ac Power Supply; Figure 220: Removing A Three-Phase Wye Ac Power Supply - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide

Installing a T640 Three-Phase Wye AC Power Supply

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Twist the ejector handles on the upper corners of the faceplate counterclockwise to
14.
unseat the power supply.
Grasp the handle on the power supply faceplate and pull firmly. Slide it halfway out
15.
of the chassis (see Figure 220 on page
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 220: Removing a 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 222 on page
412).
415).
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