Cisco Nexus 3400-S, Hardware Installation Manual

Page: 21 / 62

Figure 6: Positioning the Bottom-Support Rails
The bottom-support
brackets (2) 2 Screws holding the
bottom-support bracket to
the rack 1
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.
Verify that the two sets of bottom-support rails are level with each other before going to the next step. 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.
Cisco Nexus 3400-S Hardware Installation Guide
13
Installing the Chassis
Installing a 4 (RU) Chassis in a Four-Post Rack