Page 52 of 72
5.7. TURN BACK CLOSURES
5.7.1. There are three special closures available for filling the space between two ramps in a
turn back configuration. The Single-Line and Two-Line Turn Back Closures 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.
5.7.2. 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).
5.7.3. Cut a 1-1/2″ diameter round tube to the measured gap (FIG. 5.21)
FIG. 5.21 FIG. 5.22
5.7.4. Using a metal file, smooth all sharp edges from cutting the round tubes.
5.7.5. Disassemble the adjustable elbows by removing the screw and nut (FIG. 5.4).
5.7.6. Install an elbow half into each end of the cut tube (FIG. 5.4).
5.7.7. Tighten the internal set screw using a T-handle Allen wrench or similar tool (FIG. 5.4).
5.7.8. Reassemble the elbows by replacing center insert and securing with the screw and nut
(FIG. 5.5).
5.7.9. Test to ensure all elbows are properly secured and attached. If needed, tighten internal
set screw in the closure elbow to secure more rigidly.
5.7.10. Locate the platform closure brackets and attach the short leg of the brackets to the lower
holes in the ramp posts with 5/16″-18 x 2-1/4″ hex bolts, 5/16” flat washers and 5/16″-18
nuts (FIG 5.22). Orient the brackets so the long leg is on the same side as and parallel to
the bracket on the opposite side then tighten lightly (enough to hold the brackets against
the posts but still allow it to rotate).
To Next Page
Loading...
Need help?
General