Portable Fall Arrest Post Load Capacity - Sperian MILLER DuraHoist Mode D'emploi

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WARNING
- Winches and SRLs must have a 310lb working load and SRL must have a 900lbs (4kN) Maximum Arresting Force
- Make sure to install/use/maintain the winch/SRL according to the manufacturer's instructions.

Portable Fall Arrest Post Load Capacity

The Portable Fall Arrest Post has a 6 ft (1829mm) radius or 12 ft (3658mm) diameter safe working area. A safe
working area is having a maximum of three workers within 6 ft of the post within the design parameters. The
system was designed with a worst case scenario of two workers falling simultaneously when the structure is
already supporting a previously fallen third worker (who may weigh up to 300 lbs). All workers are equipped with
a shock absorber of 900 lbs.Maximum Arresting Force (M.A.F). Applying an industry accepted 2:1 design factor
to this worst case loading of 2,100 lbs (9.34 kN) or broken down {(900 lbs + 900 lbs + 300 lbs) x 2}, the proof
load for the structure amounts to 4,200 lbs (18.7 kN). This design factor is laid out in the OSHA regulations for
engineered systems.
Us e r I nst r uct i o ns - E ngl i sh
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Portable Fall Arrest Post
at Rated Distance
DH-AP-1
Radius
12
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8.400 lbs 5,100 lbs
(37.1 kN) (22.6 kN)
24" 48"
(810mm) (1220mm)
Note: The angle at which a load
is applied greatly affects the load
the structure can support. The
further away from the post that
you apply the force, the stronger
the post has to be to provide the
stated proof load.
4,200 lbs
(18.7 kN)
72"
(1829mm)