Cisco Nexus 3000 Series Manual page 11

Installing the Chassis
Figure 3: Positioning the Bottom-Support Rails
1 Screws holding the bottom-support bracket to the rack
b) Holding the bottom-support rail level, attach the rail to the front and rear vertical mounting rails using four
customer-supplied screws that are appropriate for the rack (use two screws for each vertical mounting rail), and
tighten each screw to the appropriate torque setting for that screw.
Typically, you use one of the following types of screws and the associated torque settings when tightening them:
• M4 screws—Use 12 in-lb (1.36 N·m) of torque.
• M6 screws—Use 40 in-lb (4.5 N·m) of torque.
• 10-32 screws— Use 20 in-lb (2.26 N·m) of torque.
If the rack requires another type of screw, use the appropriate torque setting for that type of screw.
c) Repeat Steps 3a and 3b to attach the other expanding bottom-support rail to the other side of the rack at the same
level as the attached bottom-support rail.
Note
Step 4
Install the chassis in the rack as follows:
a) Slide the power supply end of the chassis onto the installed bottom-support rails as shown in the following figure.
Note
Verify that the two sets of bottom-support rails are level with each other before going to the next step.
When sliding the chassis onto the bottom-support rails, proceed slowly and cautiously so that you don't
damage the switch or support rails.
Installing the Chassis in a Four-Post Rack
2 The bottom-support brackets (2)
Installing the Chassis
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