Gateway 7250R Rack Mounting Instructions page 13

3
Align the front of the cabinet mounting rail to the front mounting
bracket by sliding the inner rail and inner slide until the rail screw hole
opening lines up with the first inner rail screw hole and with the second
screw hole on the front mounting bracket.
Inner rail
Front mounting
bracket
Inner slide
4
Attach the front of the cabinet mounting rail to the front mounting
bracket using a screw from the accessory kit.
5
Slide the inner rail and the inner slide again until the rail screw hole
opening lines up with the front mounting bracket long screw hole.
6
Attach the front of the cabinet mounting rail to the front mounting
bracket using a screw from the accessory kit.
7
Mount the second cabinet mounting rail on the opposite side of the
cabinet by repeating Steps 1 through 6.
8
Installation
Cabinet mounting rail
Screw