Confined Space Rescue Split 4:1 Raise

Excerpt Taken From Rigging Lab Academy’s ~ Confined Space Rescue: Technician course Confined Space Rescue Split 4:1 Introduction With the introduction of Petzl Grillons, AZTEKs, and other small mechanical advantage devices, a lot of people don’t use a rig split 4:1 anymore. If you don’t have access to a Grillon or small mechanical advantage systems …

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