Juniper T640 Hardware Manual page 197

Copyright © 2017, Juniper Networks, Inc.
To install the mounting hardware for an open-frame rack (see
Install cage nuts, if needed, in the mounting holes specified in
1.
On the rear of each rack rail, partially insert a mounting screw into the lowest hole
2.
specified in Table 88 on page 164
Install the large shelf on the rack. Rest the bottom slot of each flange on a mounting
3.
screw.
Partially insert screws into the open holes in the ears of the large shelf.
4.
Tighten all the screws completely.
5.
Remove the mounting brackets from the chassis by loosening the screws at the top
6.
and bottom of each bracket.
The router is shipped with each spacer bar attached to the rear of each front-mounting
flange. Remove each spacer bar by removing the screws that fasten the spacer bar to
the front-mounting flange.
Figure 4 on page 16 shows the front-mounting flanges.
Chapter 16: Installing the Rack Mounting Hardware
Figure 62 on page
for the large shelf.
164):
Table 88 on page 164.
163