Step 4. Install the rear mounting bracket of the right outer rail to the lower EIA flange.Figure 32. Installing the rear mounting bracket to the EIA flange① Align the rear pins on the outer rails to the EIA flange.② Slightly push the end of the rail down to hook the rear mounting bracket latch to the rack.③ Push the rail into the EIA flange until the pins protrude through into the corresponding holesin the rack.④ The bracket will lock into place as illustrated.Step 5. Install the front mounting bracket of the right outer rail to the lower mounting flange.Figure 33. Installing the front mounting bracket to the EIA flangeNote: Make sure the rail stays horizontal.① Open the front bracket and align the front end of the outer rail to the EIA flange.② Pull the outer rail into the EIA flange until the pins are inserted into the corresponding holes.③ Close the front bracket to secure the rail.Chapter 6. Installing optional kits 29