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snap outs

View Poll Results: safety
danger 0 0%
risk 0 0%
saftey 1 100.00%
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Old 17th November 2008, 07:19 PM   #1
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Default snap outs

with all this drought we're have finding it harder and harder to rely on good anchor points and limits to limb walking to certain points in removing or pruning a tree its all good with up to date safety gear but wat about the trees that safteys an issue that we have to do.....wooo hooo
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Old 17th November 2008, 07:25 PM   #2
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Default Re: snap outs

Not sure what we're voting on?

We're having a wetter year, in fact is pissing down today. Dam content went from 13% up over 40% (phew) and summer is a our rainy season.

But where you are from you have dry hot summers, and the eucs are already drought stressed and snapping.

Any stories to tell?
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Old 17th November 2008, 08:08 PM   #3
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Talking Re: snap outs

yeah close calls ..had my life line anchord in a130 135ft spotted gum and me about half way down with the 88 removing one of its leader over a house.had the lowering rope craned threw 2 forks ..all looked well and good till the rope took the wait of the chunk because of the drought snapped one of the forks peeled the bark witch yanked my poll strap and because the i hadnt finished my cut the88 was still winding down..my spike slipped from the yank from poll strap ..and as i threw the saw the poll strap twisted me round the limb some how cutting threw my live line send me poll strapped rope burned hands straight down with the bit i tried to lower ...but the log missed the house and i managed to stop by monkey hugging the limb and jamming my spikes in... but drank the bar empty that night.... taught me a good lesson though.. just cause it looks safe its probably not.now i double check every thing....
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Old 17th November 2008, 09:16 PM   #4
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Default Re: snap outs

Quote:
Originally Posted by wados View Post
yeah close calls ..had my life line anchord in a130 135ft spotted gum and me about half way down with the 88 removing one of its leader over a house.had the lowering rope craned threw 2 forks ..all looked well and good till the rope took the wait of the chunk because of the drought snapped one of the forks peeled the bark witch yanked my poll strap and because the i hadnt finished my cut the88 was still winding down..my spike slipped from the yank from poll strap ..and as i threw the saw the poll strap twisted me round the limb some how cutting threw my live line send me poll strapped rope burned hands straight down with the bit i tried to lower ...but the log missed the house and i managed to stop by monkey hugging the limb and jamming my spikes in... but drank the bar empty that night.... taught me a good lesson though.. just cause it looks safe its probably not.now i double check every thing....
When using secondary and third forks for redirects when lowering ya gotta make sure that their height from the one before is less than a 45 degree angle otherwise they become load bearing...
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Old 17th November 2008, 09:59 PM   #5
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Default Re: snap outs

Also lowering rope running through forks is a lot of friction, most weight will be taken on the closer fork unless as John pointed out the angle gets below 45 degrees etc. But even at 45 degrees that fork is going to take a lot of it.

Also forks sound like they were a bit "out there" not close to the trunk so you create a bugger of a lever arm.

Should have had a block high up the straightest leader then through forks etc lower, that way the force is down the timbers strongest axis.

Without a picture or diagram hard to say exactly how it was rigged for us sitting here.

Watch this live leak video.

http://www.liveleak.com/view?i=85319b6d90
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Old 18th November 2008, 01:51 AM   #6
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Default Re: snap outs

whats the poll for?I'm confused here.
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Old 18th November 2008, 04:01 AM   #7
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Default Re: snap outs

I have no idea what I just voted on but "safety" seemed the best answer so I went with it.
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Old 18th November 2008, 04:35 AM   #8
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Default Re: snap outs

Quote:
Originally Posted by Ekka View Post
Also lowering rope running through forks is a lot of friction, most weight will be taken on the closer fork unless as John pointed out the angle gets below 45 degrees etc. But even at 45 degrees that fork is going to take a lot of it.

Also forks sound like they were a bit "out there" not close to the trunk so you create a bugger of a lever arm.

Should have had a block high up the straightest leader then through forks etc lower, that way the force is down the timbers strongest axis.

Without a picture or diagram hard to say exactly how it was rigged for us sitting here.

Watch this live leak video.

LiveLeak.com - Catapulted from a Tree
The latest NSW CoP Draft stipulates using shackles and pulleys on craning forks. So if you have a snap out from using natural and someone is hurt or killed your pretty much up shit creek...
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Old 18th November 2008, 06:35 AM   #9
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Default Re: snap outs

I looked through the COP and it was not in there.

We are looking for mandate "should" "requirement" for natural crotch rigging etc to have hardware installed.

I doubt that would be the case, it would be a stupid call for people to be forced to set up hardware in every fork etc.

It does say that rigging points be strong enough.

What about on the huge trees like Ace and Lopa do? Lopa runs a 32mm+ dia 3 strand through forks. What about when the fork is some 2' dia huge limb only a few metres out from the trunk etc? What about on busy trees where you are constantly having to change your rigging point. Sometimes I natural crotch such trees, have the lowering rope up high then through forks all over the place as you work the canopy ... Leopard trees are a typical example but nowhere near as big or heavy as eucs.

What we dont know here is how heavy the load was, the angle of the rigging, any slack in the system etc.
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