Mounting the Chassis
4-10
SmartEdge 1200 Router Hardware Guide
Install the Chassis
To install the SmartEdge 1200 chassis in the rack, you need eight 12-24 or equivalent screws. Perform the
following steps when only two installers are available to install the chassis. In this scenario, the two
installers lift the chassis into the rack; then one installer steadies it from the rear while the second installer
inserts and tightens the rack mounting screws:
1. Move the heavy-duty cart so that the rear of the chassis is closest to the rack.
2. Remove the fan tray:
a. Using a Phillips screwdriver, loosen the captive screw on the front of the unit.
b. Gently slide it out of the chassis and set it aside.
3. Create temporary rest points for the chassis.
Partially insert two of the 12-24 screws in the holes in the rack just below those that you intend to align
with the lowest screw holes in the mounting bracket. You rest the mounting brackets on these temporary
rest points after you have lifted the chassis into the rack. See Figure 4-7.
4. With one person at the rear of the rack and one at the front of the chassis, lift the chassis into the rack;
let the mounting brackets rest on the two screws with the person at the rear of the rack steadying the
chassis.
5. With a Phillips screwdriver, secure the chassis to the rack with the remaining 12-24 or equivalent
screws; then remove the two screws you used as rest points and insert them in the remaining screw holes
in the brackets. Tighten each screw using 30.0 inch-lbs torque (3.4 Newton-meters) maximum.
6. Install the fan tray:
a. Insert the unit into the chassis.
b. With a Phillips screwdriver, tighten the screw on the front of the unit using 5.0 inch-lbs torque
(0.6 Newton-meters) maximum.
Proceed to the “Install the Air Ramp Mounting Brackets” section to continue the installation.
Warning
Risk of personal injury. The empty chassis weighs almost 55 lb (25 kg) and can cause injury
if one person attempts to lift or move it. To reduce the risk, do not lift or move the chassis
without the aid of another trained person; always follow the procedures at this installation site
for safely lifting heavy objects.
Caution
Risk of equipment damage. Do not grasp the power safety cover, the cable tray, the opening
for the fan tray, or any slot opening as a handhold when lifting or lowering the chassis because
neither any of these components nor any opening can bear the strain induced by the chassis
weight. The cover and cable tray can break away from the chassis, thereby causing the chassis
to fall. The chassis slots can warp and prevent the correct installation of the cards. To reduce
the risk when you lift or lower the chassis, always grasp the chassis by its underside edges and
not by the covers or the interior partition.
