Slick progress capture hauling system with a Tibloc
I first saw this on the Instagram of Vladislav Babikov, an Israel based EMT and rescue expert. Thanks Vlad! Give him an Insta follow: @babikov_vlad
Here’s a compact and efficient progress capture haul system that uses a Petzl Tibloc as a rope grab and a fixed side plate pulley.
Here’s the gear you need:
A large HMS carabiner
A second locking carabiner of any flavor
Petzl Tibloc
Pulley with fixed side plates
Note the pulley with the fixed side plates. This is important. I tried this with a small swing arm pulley, and didn't work.
(If you want a name brand fixed side plate pulley, the Petzl Fixe would be a good choice. I have a cheapo from the interweb.)
If you want to know more about the Tibloc, check out this detailled article.
I will admit that it took me a rather embarrassingly long time to figure out how to rig this from the photo that Vlad posted . . .
I'll save you some time with this step-by-step photo sequence that worked for me. =^)
Step 1 - Place the Tibloc on the rope, with the top of the Tibloc pointing down, toward the load. Clip the pulley with the large HMS carabiner as shown.
Step 2 - Place the rope through the pulley as shown.
Step 3 - Clip the HMS carabiner through the pulley as shown, aligned like this.
Step 4 - Clip the second carabiner (blue) as shown. (This is why you need that fixed plate pulley; it has enough room to clip the blue carabiner in so it doesn't rub on the rope.)
Step 5 - Finally, clip the second (blue) carabiner to the anchor.
This hauling system is very smooth and efficient because of the pulley. The rope runs in a straight line through the system without any sideways torquing or twisting. You also don't lose any of your progress between pulling strokes, even better.
A little Tibloc trick- it may seem that this is a one-direction system and can’t be reversed, but that's not quite true.
To make the Tibloc reversible: push up on the spring loaded orange hood, and then sort of rotate the Tibloc in a counterclockwise direction, which should release the teeth, allowing you to lower your load if necessary.
If you have this gear around, give it a try. It's a clever (and for me, sort of a brain-twister) way to use your gear in a creative way.
Why don't you just clip the Tibloc and rope to one carabiner and haul?
Sure, you can do that. Below is a diagram from my detailed article on the Tibloc about how to set this up the right way.
This can work fine for a smaller load, but because you're hauling through a carabiner, that's only about 50% efficient. Meaning, you need to pull down with 100 kg of force to raise a 50 kg load. Not good. With a bigger load, having a high-efficiency pulley as shown in the example above makes your life a lot easier!