PATHWAY HD Code Compliant Modular Access System Installation Manual
Page 24 of 92
4.
4.1.
FRAMES
4.1.1.
Two-line rails, picketed guards, and handrails are specific to the ramp length and
provided in pairs when ordered with the ramp. The procedure for frame attachment is
the same for the two-line rails and picketed guards. The procedure for installing
handrails is explained in a later step.
Two-line rails can also be field-converted to picketed guards if needed.
4.1.2.
One frame is required on each ramp side (frames of the same size are interchangeable
side-to-side).
4.1.3.
In a multiple ramp run configuration, handrail connectors (included in the
CONNECTOR RAMP TO RAMP) are used to join both frame top rails and handrails
together. Refer to FIGs. 4.1 and 4.2 for the following steps:
4.1.3.1.
The frame’s vertical posts each have two holes which correspond with the
studs on the end of center saddle brackets or end brackets (installed in
previous steps).
4.1.3.2.
Attach frame
to these studs using two each 5/16″ flat washers and two
each 5/16″
-18 nuts per frame post.
Tighten 5/16″ nuts
just enough to hold
the frames in place.
If the studs do not align with the holes in the frame post, the ramp
handrail end bracket is most likely installed into the wrong threaded
insert in the ramp side rail (refer back to FIG. 3.2 for proper
installation location).
4.1.3.3.
Slide handrail connector into one end of the frame’s 1-1/2” diameter top rail.
If handrail connector does not fit in tube, use pliers to lightly compress the
handrail connector while sliding into the 1-1/2” diameter top rail.
4.1.3.4.
Slide the next frame section over the handrail connector, ensuring the top
rails are pushed firmly towards each other. Compress the handrail
connector. Use a rubber mallet or similar tool to fully seat as needed.
4.1.3.5.
Rotate frame until the holes in frame post align with studs in brackets.
4.1.3.5.1.
Attach with
5/16″
-
18 nuts and 5/16″ flat washers, tightening
just enough to hold the handrail in place.
Regardless of handrail/guard styles, assemble
handrail/guard bolts loosely (do not fully tighten) until
all handrails/guards have been installed on the ramp
and/or platform.
4.1.3.6.
Repeat for the remaining frames in the run.
4.1.3.7.
Tighten all the fasteners securely.