Examples of ZIGZAG handling
For movement in the tree, the arborist can move along a single work rope. The rope must be taken up as the arborist moves: there should never be a loop of slack between the anchor and the arborist.
Warnings
- Carefully read the Instructions for Use used in this technical advice before consulting the advice itself. You must have already read and understood the information in the Instructions for Use to be able to understand this supplementary information.
- Mastering these techniques requires specific training. Work with a professional to confirm your ability to perform these techniques safely and independently before attempting them unsupervised.
- We provide examples of techniques related to your activity. There may be others that we do not describe here.
Note: in this document the name ZIGZAG means either the ZIGZAG or ZIGZAG PLUS models.
Moving away from the trunk
Normal handling
In case of a fall, there is a risk of clenching the hand on the rope and not being able to stop the fall
Normal handling
In case of a fall, there is a risk of clenching the hand on the rope and not being able to stop the fall
Returning to the trunk in double mode
Normal handling.
The doubled rope enables self-hauling which reduces the effort needed to climb.
Warning: risk of creating a loop of slack between your hands and the device, increasing the potential fall distance.
In case of a fall, there is a risk of clenching the hand on the rope and not being able to stop the fall
Note: in certain situations, with sufficient rope weight, this technique can facilitate returning to the trunk, with the rope self-feeding through the ZIGZAG. But beware if moving quickly, and remember to monitor for the possible development of a loop of slack.
Returning to the trunk in single mode
Normal handling. On a single rope the arborist must pull 100% of his/her weight with each movement.
Warning: if the user moves without taking up rope, risk of creating a loop of slack between the device and the anchor, increasing the potential fall distance.
