Kevin, Amsteel is a great fiber for most applications, just be carefull when dumping wood. Poly is a great application for this. My biggest fear is tree failure and polyester slings are inexpensive and durable.
The dam muffler! I smoked my climbing line the other day. Turn the saw the other way. I do agree with Norm. Double braid for dumping wood for the same reasons.
Re: Illinois Arborist Assoc. \"Day of Service 2010\"
Let me know what you need! I will make sure we send nothing that you request. Just having some yukes. When it gets closer let me know.
This peice had several stubs left from previous cuts due to weight. Having the spider legs made the rigging simple. Without it we would have had to make several cuts.
The workshop was a great success. I have a few pics that were set to me on the second day, " Crane Use". We had a local tree care company donate a crane and operator. This pic is the last of the brush.
The nice part about the system is that it was fast to set up and tear down. We never took the ropes out of the hub. We simply tossed it all into a large bag on wheels. The system was also easily repeatable. It was a fun job except for the weather. It rained just about every day.
We would rap down on a grigri and ascend using a hand held cam backed up with a grigri or a prusik above the cam. The set up was two peices of snake bit using both ends acting as twin ropes tied to the hub. We then tensioned the twins with a 5 to 1 anchored to a large portawrap. Then backed up...
We did a "Vista Prunning" last week behind 9 homes that backed up to lake Michigan. The clients wanted a better view of the lake. The slope was soo steep you could not walk on it you needed to be on rope.We were required to just prune the trees and keep as much growth on the slope as possiable...
I get your point. If the crane is not over center mass you always have movment for sure. Owning a crane we perfer to limit movment as much as possiable on every pick. Seems good work practice for the company and the employees.
Having the hook under the COG is standard. The point is with multiple slings you will have predictable results. Using 1 sling and hoping you are correct on placement may not be good advice if there are obsticles like utilities.If one sling was placed as you showed in the last pick the load could...