Special Applications - LEADING EDGE SAFETY TRIREX TR-000-02-18 Instruction Manual

9.0 SPECIAL APPLICATIONS

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9.1 DISSIMILAR HEIGHT WALKING/WORKING SURFACES
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9.1.A
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9.2 USE AT PARAPET WALLS
9.2.A
9.2.B
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The TriRex may be used for fall arrest and fall restraint in dissimilar height applications where worker(s)
are located on a surface lower than the surface the TriRex is positioned on and when properly set up
and used with an SRL ANSI approved for leading edge conditions. FIG 9-1
The TriRex may be used at parapet walls up to 42" in height when properly set up 12' - 15' from
the leading edge and used with an SRL ANSI approved for leading edge conditions. FIG 9.2
The TriRex may be used at parapet walls in excess of 42" in height when the SRL cable angle is 15
degrees or less. The distance between the TriRex and the leading edge may be increased beyond 15'
to reduce the angle of the cable to 15 degrees or less. However, the leading edge work zone shall
never exceed 30' in width. FIG 9-2
FIG 9-2
Distance (B)
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NSTRUCTION
FIG 9-1
For parapet walls up to 45", Distance (B) = 15' (180")
For parapet walls over 45", use the formula below:
Parapet wall (A)/.25 = Distance (B)
Example: (A) 48" / .25 = (B) 192" or 16'
Parapet Wall (A)
MAX 15˚
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ANUAL