IBM pSeries 670, Installation Manual

Page: 61 / 128

Attach the Rack to a Concrete (Non-Raised) Floor
Use this procedure to attach the rack to a concrete (non-raised) floor.
Attention: It is the customer’s responsibility to ensure the following steps are completed before the
service representative performs the tie-down procedure.
Note: The customer should obtain the service of a qualified structural engineer to determine appropriate
anchoring of the mounting plates. A minimum of three anchor bolts for each mounting plate must be
used to secure the plates to the concrete floor. Because some of the drilled holes may be aligned
with concrete reinforcement rods below the surface of the concrete floor, additional holes must be
drilled. Each mounting plate must have at least three usable holes, two that are on opposite sides
and opposite ends of each other, and one hole at the center. The mounting plates should be able to
withstand 2500 pounds pulling force on each end.
1. Be sure the rack is in the correct location.
Rack Tie Down (Non-Raised Floor)
1
1
2
2
3
3
4
4
5
5
6
6
1 Plate Lock-Down (mounting plates) 4 Bushing
2 Spacer 5 Washer
3 Washer 6 Bolt
2. Place the mounting plates (item 1 in illustration on page 45), front and rear, in the approximate
mounting position under the system rack.
Appendix D. Securing the Rack
45