1. Creating a reliable anchor: ice axe or ski buried in the snow, or an ice screw in the ice. Connecting a sling to the anchor while respecting the direction of pull towards the victim.

2. Install the MICRO TRAXION on the rope in the direction of hauling: it locks when pulled toward the anchor, and slides when pulled toward the victim.

3. Connect the MICRO TRAXION to the anchor sling with a symmetrical locking carabiner (ATTACHE 3D). Extend the sling to its maximum length while sliding the MICRO TRAXION on the rope toward the victim.

4. Gently release the tension of the rope on the harness to transfer the load to the MICRO TRAXION. Be careful to avoid jerky movements at this time, which would weaken the anchor.

Verify that the anchor is holding well under load. Untie the knot securing the chest loops, while remaining tied in to the end of the rope.

5. The victim is now held only by the anchor; the rescuer is able to move freely.

Author and source

This Petzl technical documentation is shared on https://www.camptocamp.org in partnership with the Petzl Foundation. Petzl Foundation aims to conduct educational and risk prevention actions related to the practice of vertical activities. This documentation is available under the Creative Commons CC-by-nc-nd licence.

Author: Petzl
Source: petzl.com
Version: V1
Date: 26/01/2015