Dell EMC PowerProtect DD9900, Installation Manual

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5. Working from the front of the cabinet, align the adapter with the mounting hole on the front
of the rack as shown in the following figure.
Figure 55 Securing rail to front channel
CAUTION To ensure proper alignment of the rails, check that:
l
The holes on the rail line up with the holes on the cabinet.
l
The rails are level from front-to-back and left-to-right.
l
You use the same unit markers from the front of the cabinet to the rear of the
cabinet.
6. Push in on the spring clip while pulling the rail forward. When the spring clip is forward of
the front rack channel, and the adapter is in the mounting holes, release the spring clip so it
holds the rail in place.
CAUTION Ensure the spring clip is securely attached to the channel. It may be
necessary to push in on the clip to assist in snapping it into place.
Installing the shelf on the rails
About this task
CAUTION The system components are heavy. To avoid personal injury and/or damage to the
equipment, do not attempt to install or remove system components without a mechanical lift
and/or help from another person.
CAUTION Ensure that the rear rail screws on the shelf are installed and fully tightened. If the
screws are not installed and tightened, the rails could rotate out of position, possibly causing
the shelf to fall, resulting in damage to the equipment and possible injury to personnel.
Procedure
1. From the front of the cabinet or rack, lift the shelf and slide it onto the rails.
Install the Disk Shelves in the Rack
60 Dell EMC PowerProtect DD9900 System Installation Guide