Dell PowerEdge 4220 Guide D'installation page 13

2 Remove the right back door.
While supporting the door, pull the pin for the top hinge out of the
a
door's hinge-pin housing (see Figure 1-3).
You will hear a click sound as you pull the pin out of the door's
hinge-pin housing. The hinge pins are designed to prevent them
from being pulled out of the hinge body.
Repeat step a for the bottom hinge.
b
Pull the door away from the rack.
c
Figure 1-3. Removing the Back Doors
1 hinge pin
3 hinge-pin housing
WARNING:
the removed door flat with its outer surface facing upward.
Due to the size and weight of the door, it is recommended that you lay
1
2 hinge body
Installation Guide
2
3
11