best practices for rigging in arboriculture pdf

The Port-A-Wrap was invented to eliminate taking rope wraps on the tree trunk. If the device is anchored using a whoopie or loopie sling, it can spin the sling once loaded. I prefer a spliced-eye sling because the throat distance can be minimized, keeping the device on the trunk right where it is mounted. Different sling versions can be used, such as a spliced-eye, whoopie or loopie, but my preference is a spliced-eye sling. The device is mounted near the base of a tree using a rope sling. The Port-A-Wrap, commonly called the porty, is manufactured in four different sizes and will accept rope diameters from ½-inch to 7/8-of-an-inch, depending on the model. He is also the lead instructor for the Illinois Arborist Association Advanced Training program’s “Tree Worker” domain. He currently works at All Gear, Inc., as a splicer and trainer. Hall has been working for more than 45 years in the tree care industry.

Here are some pointers from Norm Hall for use of the Port-A-Wrap. Buckingham Manufacturing makes it Notch Equipment also sells a version, as does Bailey’s. It was co-invented by Scott Prophett and Norm Hall. The Port-A-Wrap is a portable, rope-friction device used to lower loads that a single ground person could not lower alone without additional friction. In this article, we’ll look at best practices for using lowering devices in general and at specific tips for using three of the most commonly used devices, the Port-A-Wrap, the Good Rigging Control System (GRCS) and the Hobbs H-2. There are a number of lowering devices designed for tree rigging available on the market today. The H-2 has a liftingĬapacity of 1,000 pounds. The Hobbs H-2 is designed for lowering lines from ½-inch to ¾-inch diameter, and has a working load limit (WLL) of up to 3,000 pounds.

Best practices for rigging in arboriculture pdf