To install the appliance rack rails

1. Identify the front and rear ends of each rail. The illustration above shows the front view of the left and right side rails. The labeled side should face the rack wall when the rails are installed.
   
2. Place one rail inside the rack. Use the same 1 RU space and holes in the front and rear of the rack. Align the pins in the top and bottom holes of the top RU. Move the front and back of the rail to fit into the rack. Slide the rail forward until the pins click into the rack holes.
   
3. Secure the rear of the rail. Push the blue lock located on the outside of the rail toward the rack wall and toward the back of the rail. The lock must be behind the rack post. Ensure that the lock clicks into place.
   
4. Identify the three different rails in each rail assembly.
   
5. Extend the rails to expose the white pull tab on the inner rail. Pull the white tab forward to release the inner rail from the outer and intermediate rails.
   
6. Attach the inner rail to the left and right sides of the chassis at the four attachment locations. The rails click into place when properly installed.