Gateway ALR 8200R User Manual page 20

10 Gateway ALR 8200R User's Guide
7. Mount the rail in the rail brackets using a single screw for each end of
the rail. See Figure 6.
Figure 6: Attaching the Cabinet Mounting Rails
8. To secure the rear of the rail, slide the inner rails forward to gain
access to the mounting holes. The latch may lock the rail into place.
Release the latch to allow the rails to slide freely. To secure the front of
the rail, slide the inner rail so that the opening aligns with the
mounting holes. Verify that the inner rails slide freely.