IBM Power System S821LC Installing page 20

About this task
Attention: To avoid rail failure and potential danger to yourself and to the unit, ensure that you have
the correct rails and fittings for your rack. If your rack has square support flange holes or screw-thread
support flange holes, ensure that the rails and fittings match the support flange holes that are used on
your rack. Do not install mismatched hardware by using washers or spacers. If you do not have the
correct rails and fittings for your rack, contact your IBM reseller.
Note: The system requires 1 EIA rack unit (1U) of space.
Ensure that you have the parts you need to install the rails. The following parts are included with the rail
kit:
v Slide rail screws, used to attach the two parts of each slide rail
v Slide rail rack screws, used to secure the rails to the rack
v Rails
v 10-32 x 0.25" screws, used to attach the rails to system chassis
Procedure
1. Remove the rail pieces from the packaging and put them on a work surface.
2. Connect the two parts of each rack slide rail. To connect the two parts of the rack slide rail, perform
the following tasks:
a. Identify the two pieces of the left rack slide rail. Align the short and long pieces (C). Ensure that
the rack rail pins are pointing in the same direction (A) and (D).
b. The shorter piece of the rack slide rail has a metal pin. Insert the pin into the hole in the longer
piece of the rack slide rail (B). Slide the shorter piece of the rack rail into the longer piece of the
rack rail.
c. Align the holes in the two pieces of the rack slide rails. Using a Philips-head screwdriver, attach
the two parts by loosely screwing two rail screws through the holes in the rack slide rail.
Note: Do not tighten the rack slide rail screws.
d. Repeat these steps for the right slide rail.
3. Attach the chassis rails to the system chassis. To attach the chassis rails to the system chassis, perform
the following tasks:
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Power Systems: Installing the IBM Power System S821LC (8001-12C)