Replace the Routing Engine Housing
The Routing Engine resides in a metal housing in the rear of the chassis, below the fan tray (see Figure 2). The housing is not a FRU, but you must remove it from the chassis to access the Routing Engine and LS-120 drive. The Routing Engine housing weighs approximately 17 lb (8 kg).
To remove and install the Routing Engine housing, perform the following procedures: