Install Clip Nuts for the Expansion Module (for square hole racks only)

If using a rack with square holes, you must install clip nuts to secure the module.

If the rack has threaded holes, skip to Prepare the Expansion Module by Removing the Cartridge Magazines.

Figure 2-14 Expansion Module Clip Nut Installation

• Illustration Legend:
• 1 - First U
• 2 - Second U
• 3 - Module Flange
• 4 - Module Engagement
• 5 - Clip Nut Location (Second Hole of the Second U)

1. Locate the middle hole of the second U (5th hole down from the junction of the first U boundary) on both the left and right rail stiles for installation of the clip nut. Use the Rail Installation Template, if desired.

   See Figure 2-14.

2. Fore each clip nut location:
   1. Seat one edge of the clip nut into the hole from the back of the rack stile.
   2. Compress the other edge of the clip nut and seat it in the hole.
3. Make sure the clip nuts are parallel (in the identical mounting hole).
4. Locate the 2U space at the back of the rack directly below the installed module.
5. Insert a clip nut in the third hole down from the junction of the first U boundary on both the left and right rail stiles.
6. Make sure the clip nuts are parallel (in the identical mounting hole).