EZ-ACCESS Modular Ramp Assembly Manual page 16

FIG. 3.7
3.3.7. If the ramp walking surface is over 36" high, an MUAB (UNIVERSAL ANGLE
FIG 3.9
BRACE) must be installed under the ramp (FIG. 3.9).
Where two ramps are joined together, use one brace band on
3.3.7.1.
each support tube to secure the ends of the angle brace nearest
the twist using a 5/16" bolt, flat washer, and nut.
3.3.7.2. The opposite end of the angle brace is attached to the bottom of
the ramp near the center of the tread at the end of the ramp
using a 1/4" square drive pan head self drilling screw.
Ensure that all angle braces are secured before using the ramp.
3.3.7.3.
IMPORTANT: Walking surfaces over 72" or more above the
ground require UNIVERSAL CROSS BRACES in addition to the
angle braces (see 'INSTALL UNIVERSAL CROSS BRACE). The
process for installing cross braces to ramp support tubes and
platform support tubes is the same.
FIG. 3.8
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