CMC Rescue, Inc.
|
A Z VORTEX User’s Manual
5
•
Proper rigging runs the Working Line
through a pulley attached to the head with a
head pin or through a carabiner,
Figure 2
.
This aligns the resultant force vector with
the legs.
•
Personal Safety Lines should have anchors
independent of the AZ VORTEX. Do not
attach or tether personnel to the AZ
VORTEX or any of the rigging lines.
•
As with any equipment near the edge,
always tether the equipment to prevent
items from falling or being knocked over the
edge.
VISUALIZING THE RESULTANT
The resultant force vector (R) created
by a Main Line under tension bisects
the incoming vector (F1) and the out-
going vector (F2).
One way to visualize where the resultant
is directed is to imagine a line drawn
through the pin supporting the pulley
and the pulley’s axle, extending down
to the surface.
F2
F
1
R
Figure 3A
DANGER, UNSAFE!
Figure 2
SAFE
•
The working line should never enter and exit on the same side of the AZ VORTEX head,
Figure 3A
. This creates a horizontal force vector that will attempt to topple the tripod. Fixing
the working line directly to the AZ VORTEX head will cause the same hazard,
Figure 3B
.
Figure 3B
DANGER, UNSAFE!
