Chapter 3: Assembly Instructions

C. Align the through holes in one top/bottom horizontal depth bracket (#2 in Figure 3-2) with the through holes on the opposite side of the upright in Step 1B (#1 in Figure 3-2). Install (2) 12"-13 x 1" hex head bolts, lockwashers, and

(2) 12-13 finished hex head nuts (see #5, #6, and #7 in Figure 3-2).

D. Align the through holes on the other side of the horizontal width bracket in Step 1B (#3 in Figure 3-2) with the through holes in one right-hand upright (#1 in Figure 3-1).

E. Repeat steps A–D for the remaining left- and right-hand uprights (#1 and #2 in Figure 3-1), horizontal width bracket (#3 in Figure 3-2), and horizontal depth bracket (#2 in Figure 3-2).

Step 2: Assembling the Top Corners of the Rack

A. Stand the bottom corner assembly from Step 1 with the horizontal width and depth brackets’ bottom edges flat on the floor.

B. Repeat Steps 1B through 1E for the remaining two top/bottom horizontal width brackets and the two top/bottom horizontal depth brackets. See Figure 3-2.

Step 3: Final Tightening

Square the unit using a level or carpenter square. Tighten all bolts using a 34" socket and/or wrench.

Step 4: Secure the Rack to the Floor

CAUTION: Before installing equipment in the rack, bolt it to the floor, or to an equally stable and secure surface before installing any equipment.

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Black Box 4-Post Steel Open Racks Assembling the Top Corners of the Rack, Final Tightening, Secure the Rack to the Floor

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