Attaching The Mounting Hardware To The Rack - IBM 7014-T00 Manual

unit. Mark the rack so that the mark can also be seen from the rear of the rack.
Figure 57. Marking the installation locations
3. On the left rail, count up two mounting holes from where you placed the mark for mounting hole (B)
in step 2 on page 61 and place another mark next to that mounting hole (B). Mark the rack so that the
mark can also be seen from the rear of the rack. You now have two marks on the rack, with one
mounting hole between the marks.
4. Repeat steps 2 on page 61 and 3 to place two marks on the corresponding mounting holes on the
front-right rail.
5. Go to the back of the rack. On the left side, find the EIA unit that corresponds to the lowest EIA unit
marked on the front of the rack.
6. Place a mark at the top hole (C) of the lowest EIA unit. Mark the rack so that the mark can be seen
from the rear of the rack.
7. Count up two mounting holes from where you placed the mark in step 6 and place another mark
next to that mounting hole (C).
8. Repeat steps 6 and 7 to place two marks on the corresponding mounting holes on the rear-right rail.

Attaching the mounting hardware to the rack

You might need to attach mounting hardware to the rack. Use the procedure in this section to perform
this task. This section also includes information intended to promote safety and reliable operation, and
illustrations of the hardware components.
CAUTION:
Installing the rails in the rack is a complex procedure. To install the rails correctly, you must perform
each task in the following order. Failure to do so might cause rail failure and potential danger to
yourself and the system unit.
To install the mounting hardware into the rack, follow these steps:
1. Rotate down the front and back clamps (C) on the left and right rails.
2. Start at the front of the rack. Extend the right rail and insert the rail pins (D) into the marked
locations in the rack so that the rail is facing upward. Rotate up the front clamp (C) to secure in
place.
Note:
v If your rack has the square mounting holes, remove the rail pins (D) from the rail. Install the
larger rail pins provided with the rack installation kit.
v The rail installation can be completed by one person. However, the installation is easier if one
person is positioned at the front of the rack and one person is positioned at the back of the rack.
62
Installing into a rack