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Examples of ZIGZAG handling

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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.

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

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.

Weight 2.66 kg

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