3Com CoreBuilder 9000 Quick Installation Manual page 13

Figure 8 Installing a Rack-mount Clip in the Rack
Rack rail
10-32 inch screw
Be sure to thread the screw
through this nut to securely
attach each clip to the rack
3 Two people lift the chassis through the front of the rack, until both
chassis rack-mount flanges are up against the rack.
4 Using the preinstalled flange pins for guidance, match the slots on the
rack-mount flange to each clip nut on the rack.
Support the back of the chassis until the two bottom screws are fully
inserted.
5 Secure the chassis to the rack with the screws provided (eight
10-32 inch screws) and with the rack-mount clips.
a Install one screw on each side in the bottom slot on each
rack-mount flange.
b Install the remaining screws.
c Tighten all screws completely.
Tighten the #10 screws that hold the chassis onto the rail to a Torque
Specification of 22-25 in/lb (inches per pound).
7-Slot Chassis Quick Installation Guide
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