8 Gateway ALR 7200R User’s Guide SupplementInstalling the System DrawerInstalling the Mounting Rails1. Remove the side rails from the mounting rails, by depressing theretention clips and sliding them off.2. Mount the side rails on the system chassis with the 8 screws (4 to eachside) provided. The retention clips should go toward the rear of thecabinet.3. If the mounting rails have not previously been installed, position thedrawer template (P/N 65770050-00) in the cabinet so that the sidematches the corresponding side you wish to install.Note:Drawer heights aremeasured in U’s. Each U isequivalent to 1.75 inches.The ALR 7200R is 6U’s(10.5 inches) high.