35. Insert two of the rack-mounting bolts through a flat washer, a plastic isolator bushing, thick washer,
spacer, and through each of the front leveling feet.
36. Align the two rack-mounting bolts with the two tapped holes in the front mounting plate and turn 3 to
4 rotations.
Note: If this is a DC-powered installation, ensure that the bottom isolators are installed.
37. Position the rear-mounting plate over the holes in the raised floor.
38. Using your anchoring method, secure the rear rack-mounting plate on top of the raised floor and
through to the concrete floor, but do not tighten.
39. Insert two of the rack-mounting bolts through a flat washer, a plastic isolator bushing, thick washer,
spacer, and through each of the rear leveling feet.
40. Align the two rack-mounting bolts with the two tapped holes in the rear mounting plate and turn 3 to
4 rotations.
41. Using torque requirements that are provided by the Professional Engineer or the mechanical
contractor, torque the hardware that secures the front rack-mounting plate to the concrete floor.
42. Using torque requirements that are provided by the Professional Engineer or the mechanical
contractor, torque the hardware that secures the rear rack-mounting plate to the concrete floor.
43. Replace all raised panels that you removed when you are aligning and securing the mounting plate
hardware to the concrete floor.
44. Adjust the leveling feet downward as needed to take the load off the castors (ensure that they spin
freely) and until the rack is level. When the rack is level, tighten the jam nuts against the base of the
rack.
Figure 17. Adjusting the leveling feet
1
Rack front (base)
2
Leveling foot (quantity 4)
3
Jam nut (quantity 4)
45. If you have multiple racks that are connected as a suite (bolted to each other), go to “Connecting
multiple racks with rack-to-rack attachment kit” on page 23. Otherwise, torque the four bolts to 54
- 67 newton-meters (40 - 50 foot-pounds).
46. If you are not installing doors on your rack, install the top, left, and right trim panels.
22
Power Systems: Racks and rack features
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