IBM 9306, Hardware Maintenance Manual

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Statement 6:
CAUTION:
Do not place any object on top of a rack-mounted device unless that
rack-mounted device is intended for use as a shelf.
Installing threaded rails or bars
You must install devices that have threaded holes or devices rails that have
threaded holes on the inside of the rack mounting flanges. You can, however, install
devices or device rails that come with threaded bars on the inside or the outside of
the rack mounting flanges. See the device documentation for detailed information
on how to use threaded rails or bars.
Installing cage nuts
You must use cage nuts for all optional devices that do not have threaded holes.
Cage nuts install on the inside of the rack mounting flanges with either the
cage-nut-insertion tool or a flat-blade screwdriver. The cage-nut-insertion tool comes
with the rack cabinet and some optional devices.
Note: The rack cabinet comes with a supply of cage nuts that you can use to
install optional devices. Most devices that require them will come with cage
nuts.
Some devices might require that you install clip nuts on the rail instead of cage nuts
on the rack mounting flanges. See the device documentation for information on
when you must install the clip nuts.
Using the cage-nut-insertion tool
Use the following procedure to install a cage nut with the cage-nut-insertion tool:
1. Determine the hole in which you want to install the cage nut.
Cage nut
Cage-nut-insertion tool
Rack mounting
flange
Figure 26. Installing cage nuts with the cage-nut-insertion tool
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Hardware Maintenance Manual: IBM PC Server/Enterprise Racks Types 9306, 9308