a. Remove the semi-captive M5 screws by sliding them from the ears.
Figure 28 Removing semi-captive screws
b. For non-threaded racks, place tinnerman clips that match the truss-head screws over
the mounting holes on the rack. Refer to Table 4 on page 41 to select the correct
truss head screws.
Figure 29 Installing ears to rack using truss head screws
c. Use the orange shelf latch handles to push the shelf completely into the cabinet.
Secure the shelf to the rack using four truss-head screws.
2. Secure the top cover to the cabinet:
Note:
l
Some configurations do not have any hardware installed into the top cover. In these
configurations, use the appropriate truss head screw to attach the top cover to the
cabinet.
l
Some configurations have semi-captive screws in the top cover that will attach to
Dell EMC cabinets.
l
For third-party cabinets, you can remove the semi-captive screws and use truss
head screws to attach the top cover to the cabinet.
To secure a top cover that does not have any mounting hardware, use the screws or pins
from the kit that accompanies the device. These screws secure the shelf cover and prevent
the cover from coming out of the cabinet during operation. Secure the top cover to the rack
as follows:
Install the Disk Shelves in the Rack
42 Dell EMC PowerProtect DD9900 System Installation Guide
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