5. To remove the support arm bracket, pull the pin out 1, and then slide the bracket 2 out of the slide rail.
Figure 4. Support Arm Bracket
6. To remove the cable-management stop bracket, turn the bracket 1 and lift it 2 to release it from the support arm.
Figure 5. Stop Bracket
7. Swing the support arm 2 away from the rack and remove it from the slide rail.
Figure 6. Support Arm