Swapping Progress Capture Devices on a Loaded Rope
This is another video aimed at LCMLA and CIC candidates, but could be equally useful to any vertical caver. In the video I demonstrate a method for swapping a loaded line between a belay device, like a Petzl RIG, and a progress capture pulley, like a Mini Traxion. This technique allows you to go from a high friction belay device to a low friction haul system without you needing to lower the casualty down to the floor and then rerig the system.
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@CaverPete
www.undergroundspecialist.co.uk
www.peakinstruction.com/
Any views expressed in these video guides are my own unless stated otherwise. There will be other safety factors to consider with any technique and item of equipment, so you should seek proper training, read all manufacturer’s information and practice in a safe and controlled environment prior to relying on any of the skills or equipment demonstrated in these videos.
Another great video Pete, really glad someone is producing these resources! If it's useful, at 07:42 You don't need to remove the pulley when changing from the traxion to the rig, just pull some slack through - reduces the chances of dropping anything!
Gotta keep a few tricks hidden in the bag for paying courses!
@@PeakinstructionPeteKnight very sensible!
Great video Pete. I had seen the technique of breaking into a fixed SRT line using a short sling and traxion but never thought about applying it to a belay system . Thank you!
Cheers Hugh. Can't claim credit for the technique, but certainly thought it should be more widely known.
Wish id seen this video last Friday 😅! Great system 👍
Good clear demo, easy to follow.
Nice - really clearly explained :)
That's a really well presented demonstration. Very clear and slick - thank you!
Thank you.
8:25 Pro tip: Ditch the yellow pulley on the top left. You'll get better mechanical advantage, plus you can use you leg muscle to haul.
Respectfully disagree here. The addition of a good quality pulley as a redirect does little to reduce the overall MA of the system. It does however allow the hauler to fully leverage their body weight by pulling down holding the rope or via a chest ascender. This will be far less effort than using legs and lower back for upward pulling. Someone like me with 90kg of gravity will have a massive advantage in a haul with overhead anchors verses just pulling up directly. Of course both work and would be safe, and in some situations direct up-pulling may be better, but overall using body weight is better than muscle for stamina and injury prevention when a good overhead anchor is present.