Dell PowerEdge VRTX Owner's Manual page 138

13. To convert the top mounting ear to rack left ear:
a) Remove the screws securing the ear cover to be replaced by the cartridge, and remove the cover.
b) Align the tabs on the cartridge with the slots in the ear, and lower the cartridge until firmly seated.
When properly seated, the screw holes on the other end of the cartridge align with the screw holes on the ear.
c) Attach the two screws to secure the cartridge to the ear.
CAUTION: Take care while installing the cartridge, to prevent the LCD module cable from being pinched
or crimped.
Figure 91. Converting the Top Mounting Ear to Left Rack Ear
1. ear cover
3. screws (2)
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2. cartridge
4. tabs on cartridge (3)