Securing the Left Front Rail
Securing the left rail to the front cabinet rail.
Use a #2 Phillips screwdriver to insert and tighten two 8-32 screws to secure the left rail to the front of the cabinet. These screws pass through the cabinet rail holes and screw into threaded holes in the left rail.
Note: The screws should be inserted into the lowest holes in the top U of the 3RU slot in which the tray is to be mounted.