You might need to install the expansion unit on the rail
assembly. Use the procedure in this section to perform this task.
In addition to related safety information, this section also includes
illustrations of the related hardware components and shows how these
components relate to each other.
To install the expansion unit on the rail assembly, follow
these steps:
- Remove the four thumb screws (B) that
are used to secure the shipping cover (A) to
the rear of the expansion unit, as shown in the following figure.
Remove the shipping cover.
Note: The shipping cover is secured to the
expansion unit by two thumb screws on the top of the cover and one
thumb screw on each side.
Figure 1. Removing
the shipping cover
Tip: Save the shipping cover and screws that you
have removed for any future shipping of the expansion unit that might
be required.
- If the bezel is installed on the front of the system,
remove it by completing the following steps:
- Remove the two M5 securing screws (A) as
shown in Figure 2.
- Remove the service information holder from the slot in the bezel.
- Using the two blue touch points on each side of the expansion
unit, pull the bezel straight out to remove the bezel from the front
of the expansion unit.
- Remove the two nut clips that were used to secure the bezel to
the expansion unit from the Electronic Industries Alliance (EIA) flange.
Figure 2. Removing the service information holder
and bezel
- Using three people, hold onto the four handles (I),
as shown in the following figure, to lift the expansion unit and position
it over the front of the rails.
Attention: Three people
are required to safely lift the expansion unit. Using fewer than three
people to lift the expansion unit can result in injury.
Figure 3. Installing the expansion unit into a rack
- Slide the expansion unit into the rack.
- Install the two M5 securing screws (J) through
the expansion unit and into the nut clips on the left and right rails.
See the previous figure.
- Install the bezel (L) onto the
expansion unit. Press the bezel into place and secure it with two
M5 screws (M) on the left and right rails.
See the following figure.
- Insert the service information holder (N) into
the slot in the bezel.
Figure 4. Installing the bezel and service
information holder
- You must install either the cable management bracket
or the retention brackets. Determine whether to install the cable
management bracket or the retention bracket by reviewing the following
information:
- Use the cable management bracket to secure the 5802 or 5877 expansion unit to
the rack if you intend to provide extensive organization for the cables
and cords connecting to the expansion unit. The cable management bracket
contains a shelf that rotates into the following positions, as shown
in Figure 5.
- The shelf is rotated up to the highest position (1) to
permit service of the 5802 or 5877 expansion unit.
Since this position requires that the top edge of the shelf side brackets (A) be
rotated fully below the plungers on the stationary arms (B),
the shelf is not locked in this position.
- The shelf is rotated to a level position (2) when
no hardware service is being performed on the 5802 or 5877 expansion unit or
adjacent hardware. The shelf side brackets (A) contain
holes into which the plungers on the stationary arms (B) are
inserted, enabling the shelf to lock in this position.
- The shelf is rotated down to the the next lower position (3) to
permit service of hardware installed in the space directly above the 5802 or 5877 expansion unit.
The shelf side brackets (A) contain holes into
which the plungers on the stationary arms (B) are
inserted, enabling the shelf to lock in this position.
- The shelf is rotated down to the lowest position (4) if
additional clearance space is needed to close the rear door of the
rack. Since this position requires that the bottom edge of the shelf
side brackets (A) be rotated fully above the
plungers on the stationary arms (B), the shelf
is not locked in this position.
Figure 5. Positions
of the cable management bracket rotation
Note: The cable management bracket is designed to function in
racks with limited rear space. Following installation, it is normal
for there to be limited clearance space between the bracket shelf
and the rear door when the door is closed. It is normal for some contact
to occur when doors containing shock padding are closed. However,
if the door is prevented from full closure due to the thickness of
certain padding features, such as the acoustic rear door, the shelf
must be rotated to the lowest position (4) to
allow the door to close.
Attention: The
following situations might prevent the installation of the cable management
bracket:
- The cable management bracket cannot be installed in the 25-EIA
rack model (7014-S25) due to insufficient clearance space between
the bracket shelf and door.
- The cable management bracket cannot be installed with IBM features
that require the same physical space, such as the earthquake kit.
- The cable management bracket might not be able to be installed
in racks containing additional customer hardware.
- Use the retention brackets to secure the 5802 or 5877 expansion unit to
the rack when the use of the cable management bracket is restricted
or not desired.
- Select one of the following options:
- If you are installing the cable management bracket, continue with
step 10.
- If you are installing the retention brackets, continue with step 13.
- The cable management bracket must be assembled before
it can be installed. To assemble the cable management bracket, complete
the following steps:
- Locate the center shelf section (B) shown
in the following figure, and identify the attachment hole that appears
at each end of the piece.
Figure 6. Assembling
the cable management bracket
- Choose one of the bracket side pieces (C),
and identify the attachment point at its rounded tip. Use the previous
figure to determine the end of the center shelf section to which it
attaches.
- Align the attachment point of the bracket side piece to the inner
side of the attachment hole of the center shelf section. Use one of
the provided thumb screws (A) to secure the
bracket side piece to the center shelf section.
- Use the remaining thumb screw to attach the second bracket side
piece to the center shelf section.
- At the rear of the rack, hold the assembled
cable management bracket so that its mounting flanges (A) align
with holes in the rack flanges directly above the expansion unit rail
clamps, as shown in Figure 7.
Attach each bracket mounting flange by applying M5 screws (B) to
the three locations above the rail clamp where nut clips have been
installed.
Figure 7. Installing the
cable management bracket
- Continue with step 14.
- At the rear of the rack, install retention brackets (A) on
the left and right rack flanges, as shown in Figure 8.
Attach each bracket by applying M5 screws (B) to
the two locations directly above the rail clamp where nut clips have
been installed.
Figure 8. Installing
the retention brackets
- Use one of the following options to secure the expansion
unit to the rack:
- If you have installed the retention brackets, apply the four securing
screws (A) as shown in Figure 9.
- If you have installed the cable management bracket, apply the
four securing screws (B), as shown in Figure 9.
Figure 9. Applying the securing screws
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