IBM 3409-A00, Appliance Manual, Page: 27 / 56

• The outer rail mounts to the front rack vertical post and rear rack vertical post.
• The middle rail allows the outer rail to extend or shorten to accommodate racks of different depths.
• The inner rail mounts on the side of the appliance and slides into the outer rail that is mounted on the
rack, if wanted.
Figure 2. Identifying the sections of the rack rails
Release the inner rail
Remove the inner rail from each rail kit, as shown in the following figure.
Figure 3. Remove the inner rails from both rail kits
1. Pull on the front release tab to unlock the inner rail from the rail kit.
2. Remove and set aside each inner rail.
Retract the outer rail
After releasing and removing the inner rail, retract the outer rail to its shortest length, as shown in the
following figure.
Chapter 4. Install the appliance into a rack 9