3. Close the first arm by connecting it to the bracket on the left side of the chassis.
Figure 16 Close the first arm
4. Install the second separator on top of the first arm .
Figure 17
Install the second separator
5. Install the second arm on the left side of the chassis, on top of the separator with the open
side up.
Install the System in the Rack
30 Dell EMC PowerProtect DD9900 System Installation Guide