Full Product Manual

PATHWAY

3G Modular Access System Assembly Manual Page 56 of 77

FIG. 5.20

5.8. TWO-LINE AND VERTICAL PICKET TURN BACK CLOSURE

5.8.1.

There are two special closures available for filling the space between two ramps in a turn

back configuration. The Two-Line Turn Back Closure can be used with platforms of any

size, but the 8’ x 5’ Vertical Picket Closure can only be used with the 8’ x 5’ platform. Turn

Back Closures can also be created using the methods described in the proceeding sections

by attaching the components to platform posts between the ramps rather than directly

from ramp handrail to ramp handrail.

5.8.2.

Regardless of style, first connect the ramp handrails by installing adjustable elbows in the

ramp handrails. Loosen the elbow assembly screws and position the adjustable elbows so

they are aligned with the elbow on the opposite side (but do not tighten), and then

measure the distance between the two larger round faces (FIG. 5.21).

5.8.3.

Trim a 1-1/2” diameter round tube to the measured gap (FIG. 5.21).

5.8.4.

Using a metal file, smooth all sharp edges from trimming the round tubes.

5.8.5.

Disassemble the adjustable elbows by removing the screw and nut (FIG. 5.4).

5.8.6.

Install an elbow half into each end of the trimmed tube (FIG. 5.3).

5.8.7.

Drill 3/32” or 1/8” pilot holes through the 1-1/2” diameter tubes adjacent to the elbows.

The holes should be in line with the assembly fasteners and approximately 1/4” from the

elbow (FIG. 5.6).

5.8.8.

Drive #8-18 x 3/4” self-drilling, self-tapping pan head Phillips screws into the holes drilled

in the previous step. Tighten securely but use caution not to overtighten and strip the

threads (FIG. 5.6).

5.8.9.

Test to ensure all elbows are properly secured and attached.

5.8.10.

Locate the platform closure brackets and orient the brackets so the long leg is on the

same side as and parallel to the bracket on the opposite side, the short leg is aligned with

the ramp handrail post, and the tops of the brackets are 4” above the platform deck.

Clamp in place temporarily if needed (FIG 5.22).

5.8.11.

Drive 5/16”-18 x 1-1/4” self-drilling, self-tapping hex washer head screws, centered in the

slot, through the platform closure brackets and into the ramp handrail posts. Tighten

securely but use caution not to overtighten and strip the threads (FIG 5.22).