HGST Ultrastar Data102 User Manual page 140

User Guide
e. Follow these steps for the second inner rail on the opposite side of the enclosure.
21. Install the outer rails into the rack. Pay special attention to which side is being installed. The
embossed R is for the right side and L is for the left side. Right and Left refer to when you are
facing the front of the rack.
a. Move to the rear of the rack.
b. Orient the rail so that the word "REAR" that is embossed into the metal of the rail is at
the rear end of the rack, and the release latch is facing the inside of the rack posts as
shown in the following image.
Figure 110: Rear Rail Latch Release Latch
c. Align the rail on the rack posts at the U-height desired for installation. The bottom of the
rail will be the lower most U of the total 4U height.
d. Pull the rail toward the rack post until the toolless latching mechanism engages the
rack. The latching mechanism may need to be pulled open to get around the rack post.
e. Move to the front of the rack.
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4. Part Replacement
4.9 Rails Replacement