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5.4. TWO-LINE RAIL TOP RAIL
5.4.1. Insert a 2-15/16” ring joiner in the Frame top rail and install an adjustable elbow with
another 2-15/16” ring joiner as shown (FIGs. 5.9 and 5.10).
5.4.2. Assemble an adjustable elbow with threaded insert to the uppermost hole in the 2” x
2” angle post where the closure will connect using a 5/16”-18 x 1” long hex bolt and
5/16” flat washer.
5.4.2.1. For a 5’ platform side use the hole shown (FIG. 5.9). For larger platforms
use the hole (FIG. 5.10.).
5.4.3. Tighten only enough to hold the elbow in place.
5.4.4. Insert a 2-15/16” ring joiner in the opposite end of the adjustable elbow with threaded
insert (FIGs. 5.9 and 5.10).