Huawei Quidway AR 28 Series Installation Manual page 87

Quidway AR 28 Series Routers Installation Manual Chapter 6 Router Maintenance
Figure 6-4 Open the chassis cover (A)
（ 2 ）
（ 3 ）
（ 1 ）
1) Chassis bottom 2) Chassis cover 3) Fastening screw
Figure 6-5 Open the chassis cover (B)
II. Opening the chassis cover of other routers
Follow these steps to open the chassis cover:
Step 1: Turn off the power switch of the router and remove the power cord.
Step 2: Remove all interface cables but the grounding wire from the rear panel.
Step 3: Place the router on a flat surface, with its rear panel forward. Use the Phillips
screwdriver to remove the four fastening screws from the rear panel.
Step 4: Raise the chassis cover until its front edge is separated from the chassis bottom
completely.
Step 5: Pull the chassis cover towards you until the tab on the back edge is disengaged
from the front panel, and put away the cover.
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