Dell PowerEdge 4220 Guide D'installation page 17

Reversing the Front Door (optional)
To reverse the direction that the front door opens, complete the following
steps:
1 Remove the front door (see "Removing the Front Door" on page 8).
2 Remove the side panels (see "Removing and Replacing the Side Panels" on
3 Reverse the top hinge body.
Get user manuals: See SafeManuals.com
NOTE:
Use a 4-mm Allen wrench to remove the front-door hinge bodies from the
rack and reinstall them on the side opposite their original positions. You might need
a stepladder in order to access the Allen bolt that secures the top hinge body to the
rack.
page 12).
Pull the hinge pin upward slightly so that you can access the retention
a
clip (see Figure 1-6).
Using the needle-nose pliers, remove the retention clip, and slide
b
the hinge pin out of the hinge body.
Installation Guide
15