Dell PowerEdge 2420 Guide D'installation page 18

7 Reverse the lock catch.
Unscrew the two Phillips screws that hold the lock catch to the rack's
a
vertical frame member.
Remove the lock catch and rotate it 180 degrees.
b
Reinstall the lock catch on the other rack front vertical frame member
c
by aligning the holes of the catch with the holes of the frame member
and then reinserting the two Phillips screws.
Figure 1-8. Reversing the Front Door Lock Catch
16
Installation Guide
1 lock catch
2
2 screws
1