DETAILED STEPS
Step 1
Locate the fan assembly in the chassis. The fan tray is located to the left of the chassis on the rear side. See the following
figure.
Figure 23: Uninstalling the Fan Tray from the Chassis
Step 2
Loosen the two fan tray captive installation screws by turning them counterclockwise, using a flat-blade or number 2
Phillips-head screwdriver.
Step 3
Grasp the fan assembly with both hands, and pull it outward; rock it gently, if necessary, to unseat the fan assembly
power connector from the backplane.
Step 4
Pull the fan assembly clear of the chassis, and set it aside.
Interface Module Installation
The following sections describe the various tasks of associated with interface module installation:
Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide
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Installing the Cisco ASR 920 Series Router
Interface Module Installation