Dell PowerEdge 4220 Installation Manual page 20

Slide the hinge pin into the hinge body.
i
Insert the retention clip through the hinge so that the retention clip is
j
below the spring.
4 Reverse the bottom hinge body.
Remove the Allen bolts that secure the hinge body to the rack, and
a
place the bolts in a safe location.
Rotate the hinge body 180 degrees so that the hinge posts are now on
b
the right side of the hinge body (see Figure 1-7).
Locate the bottom bolt holes in the right side of the rack, and use
c
the Allen bolts to fasten the hinge body to the right side of the rack.
5 Rotate the front door 180 degrees so that its hinge-pin housings are on
the right side (see Figure 1-8).
Figure 1-8. Rotate the Front Door
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Installation Guide