IBM 0551, Руководство пользователя

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6. Repeat steps 2 through 5 on the left side of the rack.
7.
Facing the back of the rack and working from the right side, locate the bottom EIA unit that your
drawer will be using. Place a supplied self-adhesive dot
(B) , or make a mark next to the top hole of
this EIA unit.
8. Begin with the hole identified by the dot, or mark, placed in substep 7, count up two holes and
place the second dot, or mark, next to the hole.
9. For the 5790 only, begin with the top dot, count up four holes and place a nut clip (B) in that
location.
10. For the 5790 only, count up two more holes and place a second nut clip (B) in that location.
Installing the standard (fixed length) rails
You might need to install standard (fixed length) rails into the rack. 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.
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 used on your rack.
Do not install mismatched hardware using washers or spacers. If you do not have the correct rails and
fittings for your rack, contact your IBM reseller. Also, to install the rails correctly, perform each task in
the following order.
To install the standard (fixed length) rails, complete the steps in this section. If you have the expandable
rail set, refer to “Installing the expandable rails and extension bracket into the rack” on page 83.
1.
From the back of the rack, note the position of the two placement dots (B) , or marks, previously
installed on the front Electronic Industries Alliance (EIA) EIA strips. Install the rack-alignment pins for
the left rail into the corresponding EIA holes located in the left front EIA strip
(A) .
2. From the back of the rack, align the rails with the two placement dots (B) or marks, previously
installed on the front EIA strips. Loosely thread two retaining screws (C) into each rail, at the
corresponding EIA strip holes.
A
two front placement dots per rail
B
two back placement dots per rail
C
four retaining screws per rail
Figure 83. Installing the rails
82
Installing into a rack