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Originally Posted by Ekka  ... That device you hang up the tree gives you what mechanical advantage? You cant climb that cable, you cant pull yourself up that cable, you cant lean on it to position well for a cut coz it releases slowly.... |
The mechanical advantage I was referring to was the axes. The cable's only mechanical advantage is in it's great strength. It's quite passive in normal operation, it plays out and takes up slack as you move about. It doesn't tangle or get in the way at all. It keeps a constant positive, yet gentle, upward pull. I attach it to a Miller full body safety harness with the D ring between my shoulder blades, completely independent of my Miller climbing belt. When on the ground make sure to attach it to something so as not to lose the cable up the tree (I used my chainsaw). It has 39 feet of 3/16 Stainless Steel cable to play out and acts as a soft stop of sorts. (It locked up tight pretty fast and hard in my testing).
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You in America will definately have some [regulations] and you are violating them in a major way, this is a job as well as an adventure, dont become a "stat" that induces more regs on us!  |
Oh yes, we in America have the best legal system
money can buy. lol
From the operating manual:
"The DB/SALA SP150 Self Retracting Lifeline (SRL) meets or exceeds all National Standards, including ANSI Z359.1 and all applicable local, State, and Federal (OSHA) requirements governing this equipment."
I have a friend in the Ironworkers Union who has used these things for years on high steel erection projects. It was he who directed me to this great piece of gear.
You guys need to get out of the woods more!
Aerial