Cisco NCS 5700 Series Hardware Installation Manual page 57

Install the Chassis
b. Use six M4 x 8-mm pan head screws (three on each side) and tighten the screws to 12 in-lbs (1.4 N-m).
Figure 39: Install the Chassis to the Tray
Step 9 Pull the blue release tab on the inner slider member on both sides simultaneously to release the lock position. Continue
to push the chassis to the rack.
Step 10 Tighten the thumbscrews on either side of the chassis, that is aligned with the screw thread adapter of the outer slider
member through the rack holes.
Rack Mount the NCS-57C3-MOD Chassis in a 4-Post Rack using Sliders
Hardware Installation Guide for Cisco NCS 5700 Series Fixed-Port Routers
51