53-1002177-19 Hardware Installation Guide
Brocade DCX 8510-4 Backbone Hardware Installation Guide
2. Shelf
5. Install the top rail assembly to the air duct assembly as shown in the following figure.
a) The top rail assembly can be adjusted to a length of between 27 and 31 inches (68.58 to 78.74 cm) to fit on the
inside of the rack rails. To lengthen or shorten the top rail assembly, loosen the two 6-32 screws and adjust the
top rail assembly to the desired length. The length will be approximately the length of the adjustable shelf. Once
adjusted, tighten the two 6-32 screws.
b) Insert the top rail assembly down into the air duct assembly and then secure the top rail assembly to the air duct
assembly with two 6-32 screws, one screw on each side of the air duct assembly. Tighten the screws according to
specifications under Torque requirements.
Figure 22: Securing top rail in rack
1. Top rail assembly
2. Air duct assembly
3. 6-32 x .25 in. (.635 cm) Phillips screw
4. 10-32 x .5 in. (1.27 cm) Phillips screw with blue Loctite on threads or 10-32 x .63 in.(1.60 cm) Phillips
screw with square cone washer for racks that have rails with round holes
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