Mounting The M320 Chassis Using A Mechanical Lift - Juniper M320 Hardware Manual

M320 Multiservice Edge Router Hardware Guide

Mounting the M320 Chassis Using a Mechanical Lift

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CAUTION: Before front-mounting the router in a rack, have a qualified
technician verify that the rack is strong enough to support the router's weight
and is adequately supported at the installation site.
To install the router using a lift (see
Ensure that the rack is in its permanent location and is secured to the building. Ensure
1.
that the installation site allows adequate clearance for both airflow and maintenance.
For details, see "M320 Clearance Requirements" on page
Load the router onto the lift, making sure it rests securely on the lift platform.
2.
CAUTION: Do not lift the router using the craft interface, installation
handle, or the handles on top of the chassis. Use these handles only to
help position the router.
Using the lift, position the router in front of the rack or cabinet, centering it in front of
3.
the mounting shelves.
Lift the chassis approximately 0.75 in. above the surface of the mounting shelves and
4.
position it as close as possible to the shelves.
Carefully slide the router onto the mounting shelves so that the bottom of the chassis
5.
and the mounting shelves overlap by approximately 2 inches.
With one person pulling on the installation handle from the rear of the rack or cabinet
6.
while another person pushes on the front-mounting flanges, slide the router onto the
mounting shelves until the mounting brackets or front-mounting flanges contact the
rack rails or spacer bars (depending on your type of installation). The shelves ensure
that the holes in the mounting brackets and the front-mounting flanges of the chassis
align with the holes in the rack rails.
Move the lift away from the rack.
7.
If you are installing the router in a four-post rack or cabinet, install a mounting screw
8.
and a cage nut into each of the holes aligned with the threaded holes in the spacer
bars. If you are installing the router in an open-frame rack, install a mounting screw
into each of the open mounting holes aligned with the rack, starting from the bottom.
Visually inspect the alignment of the router. If the router is installed properly in the
9.
rack, all the mounting screws on one side of the rack should be aligned with the
mounting screws on the opposite side and the router should be level.
Figure 39 on page 139):
91.
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