Dell 760N, 720N, 740N manual 24769!8

1-U marking on vertical rail

1/2-U increment in vertical rail

align lower edge of support rail with one of these locations

1-U increment in vertical rail

front vertical rail

IU grouping of three evenly-spaced holes

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2.To attach each rack adapter rail to whole-U or half-U positions on the vertical rails, perform the following steps:

a.At the front of the rack, install the rack adapter rail using threaded holes 1 and 5 for whole-U positions and holes 2 and 6 for half-U positions (see Figure 2-2).

b.Secure the front of each rack adapter rail with two 10-32 x 0.375-inch coun- tersunk screws with conical washers provided with the mounting hardware (see Figure 2-2).

c.Using a torque-measuring wrench, tighten the rack adapter rail to the vertical rail to 27 inch pounds (3.0 newton meters).

Installing a Filer System 2-5