ASWP03 Ascending Trees
7.0 Ascending Techniques
The ASWP committee has suggested five techniques for ascending trees. The committee
recognizes that there are several different methods and techniques and to list all would be
impossible. However, the essentials of a fall protection system must be met regardless of what
system is used. The five techniques for ascending a tree are; Belay Technique, Secured Foot
Locking, Secured Body Thrust, Spurs and Ladders.
Each technique requires:
• A thorough inspection of the tree, the site and the equipment
• Adequate training in climbing techniques and Emergency Response Procedures.
7.1 Belay Techniques
The Belay Technique (Figure 2) used by arborists is adopted from recreational rock climbing.
The technique utilizes a worker on the ground to assist the arborist ascending the tree by
securing the arborist to an anchor point on the ground, using either a mechanical fall arrestor
or a friction hitch, through their life line.
As the arborist ascends, the ground worker removes the slack in the rope. If the arborist slips,
the mechanical device or friction hitch attached to the anchor point prevents a fall.
Note: The anchor must be sufficient to support the forces generated by a worker in a fall
occurs.
Figure 2
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