Yesterday while watching a treecrew HACK their way thru a tree removal, i observed the following:
a micro pulley being used to rig down chunks.
they had it tied to a 2" limb with a biner and climbing sling, and a TATTERED climbing line rigged thru it and tied to the chunks with granny knots. The climber was tied in with flipline only and standing on spurs. Groundie at the bottom, NO helmet, no leather gloves to run the rope with. The climber dropped the first block, the micro pulley groaned (you could hear it from across the street) from overloading and the groundie let go of the rope as it burned his hands. The climber yelled at the groundie.
This continued for about 45 minutes. How that little pulley ever held up i'll never know.
Other MISUSES and dangerous practices ive seen using micro pulleys:
- micropulley Z-rigs, to induce lean/tension on a 7' diameter trunk, being tensioned by a truck. for starters, a 3/4" bull line is not meant for a micro pulley......nor is tensioning the system with a truck Some of the crew standing in line with the Z-rig system, in direct line of fire should the Micropulley break. The pulley was put back onto the climber harness/TIP afterwards.
a micro pulley being used to rig down chunks.
they had it tied to a 2" limb with a biner and climbing sling, and a TATTERED climbing line rigged thru it and tied to the chunks with granny knots. The climber was tied in with flipline only and standing on spurs. Groundie at the bottom, NO helmet, no leather gloves to run the rope with. The climber dropped the first block, the micro pulley groaned (you could hear it from across the street) from overloading and the groundie let go of the rope as it burned his hands. The climber yelled at the groundie.
This continued for about 45 minutes. How that little pulley ever held up i'll never know.
Other MISUSES and dangerous practices ive seen using micro pulleys:
- micropulley Z-rigs, to induce lean/tension on a 7' diameter trunk, being tensioned by a truck. for starters, a 3/4" bull line is not meant for a micro pulley......nor is tensioning the system with a truck Some of the crew standing in line with the Z-rig system, in direct line of fire should the Micropulley break. The pulley was put back onto the climber harness/TIP afterwards.