Install the Chassis into the Rack

After you have removed components as described in Remove Components from the Chassis, the chassis is light enough for a team of installers to lift into the rack.  

Lifting the empty chassis and mounting it into a rack requires three people to lift and a fourth person to secure the mounting screws. The empty chassis weighs approximately 180 lb (82 kg). If you are installing two routers in a rack, install the lower one first.

First, perform the following prerequisite procedures:

• Place the rack in its permanent location, allowing adequate clearance for airflow and maintenance, and secure it to the building structure. For details, see Rack Requirements.
• Read the information in Installation Safety Guidelines and Warnings, with particular attention to Chassis Lifting Guidelines.
• Remove the router from the shipping crate, as described in Prepare to Install the Router.
• Remove chassis components, as directed in Remove Components from the Chassis.

Then, perform the following procedures to install the router:

1. If you are installing the router in the upper half of the rack, install the C-bracket first (see Rack-Mounting Brackets). Follow this procedure:

1. Select the height in the rack at which to mount the C-bracket. The M40 router is 35 in. (89 cm or 20 U) high, so if you are mounting two routers in the rack leave at least that much distance between the C-bracket shelf and both the top and bottom cross-pieces of the rack.
2. As you stand in front of the rack, position the C-bracket so that the shelf is protruding toward you, and align the C-bracket mounting holes with holes in the rack rails. If you are front mounting the router, install the C-bracket into the rack from the rear. Make sure the mounting holes on both sides are parallel.
3. Insert and tighten the provided screws.

2. If you are center-mounting the router, attach a center-mounting ear to either side of the chassis. For information about the center-mounting ears, see Rack-Mounting Brackets.
3. If desired, attach a lifting handle on either side of the chassis (see Rack-Mounting Brackets).
4. Prepare to lift the router:

• A person stands on either side of the chassis. Each grasps the side edge of the FPC card cage with one hand, and either grasps the lifting handle with the other hand or places the other hand under the chassis near the rear.
• A third person stands behind the chassis and lifts from under it with both hands.

5. Lift the chassis and position it in the rack. If the C-bracket is installed, rest the router on it. Align the bottom hole in both front- or center-mounting ears with a hole in each rack rail, making sure the chassis is level. See Figure 36.

Figure 36: Install the Chassis in a Rack

6. Install one of the mounting screws provided (in the accessory box shipped with the router) into each of the two aligned holes.
7. Moving up each post or ear, install a screw in every mounting hole.
8. Verify that all the mounting screws on one side of the rack are aligned with the mounting screws on the opposite side and that the router is level.
9. Proceed to the instructions in Reinstall Components into the Chassis.