Dell PowerEdge 2550 Rack Installation Guide - Page 21

center brackets are facing upwards.

Page 21 highlights

Figure 1-11. Installing the Slide Assemblies for Center-Mount Configuration 12-24 x 0.5-inch Phillips screw (2 per bracket) right slide assembly shoulder washer (2 per bracket) locking nut (2 per bracket) Flush-Mount Installation To prepare the RapidRails slide assemblies for flush-mount installation in the 2-post rack, perform the following steps: 1 Locate the left slide assembly and place it on a smooth work surface. Place the right slide assembly to the right of the left slide assembly. Position both rails so that the center brackets are facing upwards. NOTE: The slide assemblies are factory configured for center-mount use. For flush-mount installation, you must remove, rotate 180 degrees, and reinstall the mounting bracket on the opposite slide assembly. 2 Remove two locking nuts and two shoulder washers from each center bracket. Rack Installation Guide 1-15

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Rack Installation Guide
1-15
Figure 1-11. Installing the Slide Assemblies for Center-Mount
Configuration
Flush-Mount Installation
To prepare the RapidRails slide assemblies for flush-mount installation in the 2-post rack,
perform the following steps:
1
Locate the left slide assembly and place it on a smooth work surface. Place the right
slide assembly to the right of the left slide assembly. Position both rails so that the
center brackets are facing upwards.
NOTE:
The slide assemblies are factory configured for center-mount use. For flush-mount
installation, you must remove, rotate 180 degrees, and reinstall the mounting bracket on
the opposite slide assembly.
2
Remove two locking nuts and two shoulder washers from each center bracket.
12-24 x 0.5-inch
Phillips screw
(2 per bracket)
right slide
assembly
shoulder
washer
(2 per bracket)
locking nut
(2 per bracket)