Tree&Stump
ArboristSite Member
http://www.arboristsite.com/attachm...are-climbing/293108d1367362220-imag1377-1-jpg
The tree in this pic is cabled to reduce the risk of failure in the leaning leader which could have fell through the house. It is possible to cause the leader to fail while rigging pieces off of it, and this level of tree work should only be handled by professional arborists that would add more cable, rope, or chains to further brace the leaning leader during the removal. It takes a lot of experience to safely handle this type of scenario.
Maybe we can realize and learn something for good use in the field. I like this idea, and I'm going to keep it as simple as possible.
1. Place a block in the leaning leader. Place a block in the vertical leader. Place the portawrap at the base of the tree. Run the bull rope through the both blocks.
2. When piece is tied and dropped, the shock force on the rope will pull the leaning leaner towards the vertical leader instead of pulling it away from the vertical leaner.
I call this the CPRS or Counter Pull Rigging System.
Keep the block that is on the vertical leader placed horizontally to or above the block that is on the leaner.
Use two sets of blocks and two ropes if you're going big.
Keep your climbing line's tie in point placed in the vertical leader, so if you need to adjust the block up or down on the vertical leader, you can just swing over to it with a micro pulley attached to the leaner. This way you can transfer yourself back and forth.
The base of this tree is going to rot out after you take out the leaner. That's as dangerous or more as the leaner hanging over the house is to begin with. Removing the whole tree is necessary in situations like this.
And no, you can't safely do this unless you are a genuinely trained and certified arborist. Nothing goes right when you're not a seasoned professional.
The tree in this pic is cabled to reduce the risk of failure in the leaning leader which could have fell through the house. It is possible to cause the leader to fail while rigging pieces off of it, and this level of tree work should only be handled by professional arborists that would add more cable, rope, or chains to further brace the leaning leader during the removal. It takes a lot of experience to safely handle this type of scenario.
Maybe we can realize and learn something for good use in the field. I like this idea, and I'm going to keep it as simple as possible.
1. Place a block in the leaning leader. Place a block in the vertical leader. Place the portawrap at the base of the tree. Run the bull rope through the both blocks.
2. When piece is tied and dropped, the shock force on the rope will pull the leaning leaner towards the vertical leader instead of pulling it away from the vertical leaner.
I call this the CPRS or Counter Pull Rigging System.
Keep the block that is on the vertical leader placed horizontally to or above the block that is on the leaner.
Use two sets of blocks and two ropes if you're going big.
Keep your climbing line's tie in point placed in the vertical leader, so if you need to adjust the block up or down on the vertical leader, you can just swing over to it with a micro pulley attached to the leaner. This way you can transfer yourself back and forth.
The base of this tree is going to rot out after you take out the leaner. That's as dangerous or more as the leaner hanging over the house is to begin with. Removing the whole tree is necessary in situations like this.
And no, you can't safely do this unless you are a genuinely trained and certified arborist. Nothing goes right when you're not a seasoned professional.