7. Rear rail that fits into the left front rail 8. Rear rail that fits into the right front rail9. Left spacer 10. Right spacerTool-less Method for a Non-Threaded-Hole Rack1. Attaching ReadyRails to the Racka. Remove the front and rear parts of the left 4-post rail from the Dell ReadyRails kit and slide theparts together. (The front and rear parts of a rail may arrive pre-assembled.)b. Install a cage nut (item 2 in Figure 11) in the left front post at the desired height of the thumbscrew on the left front rail.c. Install a cage nut in the left rear post at the same height as the cage nut in the left front post.d. Position the left rail so that the rail end labeled FRONT faces inward.e. Start with the rear left rail (item 3 in Figure 11); align the thumb screw with the cage nut andholes on the left rear post. Gently press the rear rail end into the rack post and tighten thethumb screw in the cage nut to secure the rail to the post.f. Align the thumb screw on the front left rail with the cage nut (items 1 and 2 in Figure 11) insertedin the front post. Press the front end of the rail forward and tighten the thumb screw so that itlocks into the cage nut.g. Repeat Steps (a) through (f) to install the right rail.h. To remove or reposition a rail, loosen the thumb screw on each end and unseat the rail from therack.Installing the Hardware 19