Juniper Core Router T Series Hardware Manual page 244

T320 Core Router Hardware Guide
216
CAUTION: Before you replace a Routing Engine, you must take the host
subsystem offline. If there is only one host subsystem, taking the host
subsystem offline shuts down the router. .
CAUTION: If the Routing Engine to be replaced is currently functioning as
the master Routing engine, switch it to be the backup before removing it.
To remove a Routing Engine (see
Take the host subsystem offline as described in
1.
Offline" on page 205.
Place an electrostatic bag or antistatic mat on a flat, stable surface.
2.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
3.
the strap to one of the ESD points on the chassis.
If the Routing Engine cover is in place, remove the cover by loosening the captive
4.
screws on the corners of its faceplate (see
If applicable, loosen the screws on the extractor handles at either end of the Routing
5.
Engine faceplate, using a Phillips screwdriver.
Press the red tabs on the ejector handles on both sides of the Routing Engine faceplate.
6.
Flip the ejector handles outward to unseat the Routing Engine.
7.
Grasp the Routing Engine by the ejector handles and slide it about halfway out of the
8.
chassis.
Place one of your hands underneath the Routing Engine to support it and slide it
9.
completely out of the chassis.
Place the Routing Engine on the antistatic mat.
10.
If you are not replacing the Routing Engine now, reinstall the Routing Engine cover
11.
and tighten the screws on the corners of the cover to secure it to the chassis (see
Figure 90 on page 217).
Figure 89 on page 217):
"Taking the T320 Host Subsystem
Figure 88 on page
Copyright © 2018, Juniper Networks, Inc.
217).