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Climbing and Rigging

This ArborPod™ series offers videos that can help an arborist identify parts of a line; select and use the appropriate knots; and learn about other equipment, resources, and techniques valuable in a variety of climbing and rigging scenarios. Click on the headphones above to subscribe to this series!

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If you have comments or a favorite topic in arboriculture that you would like to learn more about, please contact us at isa@isa-arbor.com.

NameReleasedDescriptionAudio FileCEU Quiz
Fishing Pole Technique June 27, 2014 What do you do when you have to rig out a large limb with no anchor points above the work? Ken Palmer explains the Fishing Pole Technique that reduces forces in a system while safely rigging large sections of a limb for removal. Play

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Mechanical Advantage: Part 2 May 23, 2014 Ken Palmer concludes the two part series of creating and using mechanical advantage in tree work. In this episode he uses multiple pulleys to dramatically increase the output force applied to a rope. Play

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Mechanical Advantage: Part 1 April 25, 2014 Arborists can pull on a rope with the force of their weight, but how can they create a greater output force with the same amount of weight? Ken Palmer discusses the basic setup of a mechanical advantage in this first part of a two-part series. Play

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Fiddle Blocks March 28, 2014 Fiddle blocks are a great tool to help control the lowering of a large limb. Scott Prophett demonstrates how to get a 5:1 mechanical advantage using a fiddle block. Play

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Tip-tie & Lift: Part 2 February 28, 2014 Rip Tompkins explains tip-tying limbs in this continuation from Tip-tie & Lift: Part 1 (released 24 January 14). Watch the conclusion of this segment as Tompkins makes the hinge and backcut on a large limb. Play

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Tip-Tie & Lift: Part 1 January 24, 2014 Rip Tompkins explains the value of tip-tying a large limb during a tree removal. Learn about force and how to change the moment arm based on placement of the cuts on this episode of Climbing and Rigging. Play

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Bend Ratio, Rope Angles, and Reaction Forces December 27, 2013 On this episode of Climbing and Rigging, learn how the bend radius of a rope affects the fibers. Ken Palmer explains rope angle and reaction forces in a way that makes them easy to understand. Play

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Redirecting the Load Line Part 2 November 22, 2013 Learn how to redirect and control the load of a limb using a primary block, a redirect block, and fiddle blocks on this Climbing and Rigging episode. Play

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Redirecting the Load Line Part 1 October 25, 2013 Rip Tompkins and Ken Palmer explain the importance of strategically positioning an aerial lift and how to direct a load line so a rigging piece falls in a specific landing zone, on this episode of Climbing and Rigging. Play

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Balancing September 27, 2013 Ken Palmer discusses keeping a limb more static during removal by using this technique called balancing. Watch this episode of Climbing and Rigging to learn how to position a limb with a good balance point. Play

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Role of the Ground Worker August 23, 2013 The ground worker is an essential part to a rigging team. Learn about communication techniques between the climber and ground worker that may help make rigging operations safe and successful on this episode of Climbing and Rigging. Play

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Tip Tie & Drop July 26, 2013 On this episode of Climbing and Rigging, learn when to tip tie a limb and how to use the tip-tie-and-drop technique. Identify the important safety precautions to take when using this technique. Play

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