IBM 0551, Manual

Page: 20 / 182

Note: You must use a minimum of two anchor bolts for each rack-mounting plate to securely attach
the plate to the concrete floor. Because some of the holes in each rack-mounting plate might align
with concrete reinforcement rods embedded in the concrete, some of the rack-mounting plate holes
might not be usable.
22. Select at least two suitable hole locations for each stabilizer bracket bolt. The selected locations
should be as close to the threaded bolt holes as possible. Be sure that the holes selected at the back
of the rack are accessible. Drill holes at the selected locations into the concrete floor.
23. Position the stabilizer brackets over the concrete anchors.
24. Securely bolt the front stabilizer bracket to the concrete floor.
25. Position the stabilizer bracket over the concrete anchors.
26. Securely bolt the back stabilizer bracket to the concrete floor.
Note: The size of the anchor bolts and concrete anchors must be determined by the mechanical
contractor who will be installing the rack-mounting plate.
27.
Position the rack over the stabilizer bracket.
28. Insert each of the stabilizer bracket bolts through a flat washer, a plastic isolator bushing and a thick
washer, and through a leveling foot.
29. Align the four stabilizer brackets bolts with the four tapped holes in the two mounting plates and
turn three to four rotations.
30. Tighten the locking screw on each caster.
31. Adjust the leveling feet downward as needed until the rack is level. When the rack is level, tighten
the jam nuts against the base of the rack.
1 Rack front (base)
2 Leveling foot (quantity 4)
3
Jam nut (quantity 4)
32.
If you have multiple racks that are connected in a suite (bolted to each other), go to Chapter 8,
“Connecting multiple racks with rack-to-rack attachment kit,” on page 117. Otherwise, torque the
four bolts to 40-50 ft-lbs (54-67 nm).
Figure 7. Adjusting the leveling feet
10
Installing into a rack