IBM DS8880 Series Introduction And Planning Manual page 163

Lower jaw
opening
1
2.8 cm (1.1 in.)
Side view of eyebolt
Figure 23. Eyebolt required dimensions. Dimensions are in millimeters (inches).
3. Install the eyebolt fasteners in the concrete floor by using the following
guidelines:
v See Figure 21 on page 149 and Figure 23 to determine the placement of the
eyebolts. The eyebolts must be installed so that they are directly below the
holes that you cut in the raised floor for the rubber bushings.
v Ensure that the installed eyebolts do not exceed a height of 10.1 cm (4 in.)
from the floor to the center of the eye. This maximum height helps to reduce
any bending of the eyebolt shaft.
v Ensure that the installation allows the eyebolts to meet the required pull
force after they are installed (3600-pound pull force for raised floor eyebolts).
v If you use a threaded eyebolt that secures into a threaded insert in the floor,
consider using a jam nut and washer on the shaft of the eyebolt. Talk to your
consultant or structural engineer to determine whether a jam nut is
necessary.
Preparing a nonraised floor for the earthquake resistance kit:
You must prepare a nonraised floor before an earthquake resistance kit can be
installed on any frame in your storage system.
Lower
jaw
Lower
jaw
Spacer
Shaft
2
Eyebolt
Jam nut
Washer
Chapter 6. Delivery and installation requirements
Spacer
1.8 cm (0.7 in.)
151