Cisco 7507 Quick Start Manual page 11

Install the Hardware
Remove the Chassis Foot
Flat-blade screwdriver
slot for removing
chassis foot
Step 4
Turn the foot counterclockwise to loosen
it until the foot drops out of the chassis.
Step 5
Continue sliding the chassis into the rack
until the ears meet the front mounting
posts on both sides of the rack.
Underside of chassis
Chassis foot
removal 7/16" nut
Chassis foot
Step 6
Secure each ear to the rack-mounting post
with two 10-32 x 5/8-inch LG Phillips
pan-head screws.
9