Removing The M320 Power Supplies; Figure 42: Removing A Power Supply Before Installing The Router - Juniper M320 Hardware Manual

M320 Multiservice Edge Router Hardware Guide

Removing the M320 Power Supplies

Figure 42: Removing a Power Supply Before Installing the Router

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The power supplies are located at the rear of the chassis below the SIBs. Each power
supply weighs approximately 10 lb (4.5 kg).
Remove the upper power supply first and finish with the lowest power supply. To remove
the AC or DC power supplies:
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to an approved site ESD grounding point. See the instructions for your site.
Switch the circuit breaker on the power supply faceplate to the off position (
2.
recommend this even though the power supplies are not connected to power sources.
Loosen the captive screw on each side of the power supply faceplate completely.
3.
Grasp the flange on each side of the power supply faceplate, placing your hand
4.
between the flange and the chassis.
Pull firmly to start removing the power supply. Slide it halfway out of the chassis (see
5.
Figure 42 on page 144, which shows the removal of DC power supplies).
Place one hand underneath the power supply to support it, and slide it completely
6.
out of the chassis.
CAUTION: Each power supply weighs approximately 10 lb (4.5 kg). Be
prepared to support the full weight of the power supply as you remove it
from the router.
Repeat the procedure for each of the remaining power supplies.
7.
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