Attaching the mounting hardware to the rack

You might need to attach the mounting hardware to the rack. Use the procedure in this section to perform this task.

1. From the front of the rack, set the system rails to allow correct assembly with the rack and system unit. Refer to Figure 1 and complete the following steps:
   1. Fully extend each rail assembly, D and E.
   2. Pull the back latch assembly release tab G to the retracted position and lock the latch assembly F. The back-alignment pins should be fully retracted.
   3. Pull the front latch assembly release tab to the retracted position and lock the latch assembly. The front-alignment pin should be fully retracted.
      Note: Although the rail installation can be completed by one person, it is recommended that one person hold the rail in place in the front position while another locks the latch assembly in place.
      Figure 1. Setting up the system rail assembly.

      
2. From the back of the rack, insert the front-alignment pin H (Figure 1 ) into the hole at the front of the rack identified by the self-adhesive placement dot that you previously installed. Have a second person hold the rail securely in the front hole.
3. Press the release tab G (Figure 1 ) to extend the front-alignment pin into the front of the rack. Ensure that the pin passes through the correct hole in the rack frame.
4. From the front of the rack, align the back-alignment pins, H and of the rail with the holes at the back of the rack identified by the self-adhesive placement dot that you previously installed. The back EIA location will be one position higher than the front rail position. Ensure that the rails are level.
5. Press the release tab G (Figure 1 ) to extend the two back-alignment pins into the back of the rack. Ensure that the pins have passed through the correct holes in the rack frame.
6. From the back of the rack, finger-tighten one of the rail-retaining screws into the hole that is located above the two back alignment pins.
7. From the front of the rack, finger-tighten one of the system-retaining screws L into the first hole position above the front-alignment pin M as shown in Figure 2.
8. From the front of the rack, attach the system-unit latch bracket as follows:
   1. Locate a system-unit latch bracket J and its screw.
   2. Align the latch bracket J with the hole K. The top of the latch bracket hooks into the hole above.
   3. Finger-tighten the screw into place.
   Figure 2. Securing the system rails to the front of the rack.

   
9. Repeat steps 2 through 8.c for the rail assembly on the other side of the rack.