How to get a high but strong anchorpoint

[Reg]

[ QUOTE ]
On Reg's pine picture, I like to put the spiders out far like that too, makes it easy getting the center of gravity right, but i usually continue the tail of the spiders back to the main trunk because pine limbs can break. I actually had one break once and it was backed up to the trunk and there was not a problem, the broken limb stayed and every thing stable.


[/ QUOTE ]

The choker (running through the bag and attathed to the log) was the main load-bearer Dave....not clear in the photo. The spiders just stopped it from flipping. 3rd pick in this video: http://www.youtube.com/watch?v=fwTOWDKHEwk

 

[theXman]

[ QUOTE ]

The choker (running through the bag and attathed to the log) was the main load-bearer Dave....not clear in the photo. The spiders just stopped it from flipping. 3rd pick in this video: http://www.youtube.com/watch?v=fwTOWDKHEwk

[/ QUOTE ]

Yes, that's how I've seen you always do it and I should have figured you would have had the main load bearer on the main trunk portion. You do stuff right.

 

[pigwot]

We also use very long slings, toss a half hitch (some folks call it a marlin) in up high and then terminate the sling with the clevis down in the larger diameter wood. Works a charm. On severe leaning picks we notch on top and just start the back cut while letting the crane operator stand it upright before cutting it loose. Alternately, with smaller pieces we use the weight to advantage to swing them away from hazards by strategic placement of the sling(s).

 

[peder-d]

Thats what I am talking about!

Great with all theese cool ideas!

Doing some pretty busy days lately.
Looking forward to digging into the different setups in this thread

Where can you get those spiderlegs by the way?
(Preferably in Europe)

 

[Mark Chisholm]

I know Treebear here can get them in Norway and Bambini Sementi can get them in Italy. NE Ropes sells them.

 

[peder-d]

Thanks. I am looking at new england's website, but can't find the spider leg slings.
What are they called?
Under winch and crane http://www.neropes.com/WinchCrane.aspx
they have only got those two types....

Got a new cell phone. Attached a couple of shots from yesterday (nothing to do with this thread....)

Have a great weekend all of you!

 

[peder-d]

one more...

 

[Mark Chisholm]

Endurabraid slings. You can try to email the rep Bill at bshakespeare@neropes.com
and he may be able to get you the right contact.

 

[peder-d]

Thanks Mark!

 

[peder-d]

Have just been in contact with Teufelberger, who sells NE ropes in europe.
In europe every crane lifting component has to be certified according to EU standard. And the endurabraid slings are not yet certified, so I have to settle with chains and slings for now.

 

[Mark Chisholm]

Not really Peter. You can use one rated sling for the main strength and then use one or two spider legs for the rest.

 

[peder-d]

Thats right, Mark.
Tried it last week, and it worked really well. Removed an old elm at a castle. Tried to stabilize the picks with extra slings, and it worked really well.

 

[Mark Chisholm]

Glad to hear it Peder!

 

[Jay_C]

[ QUOTE ]
Hi.
Yesterday I fas taking some medium size trees down, using a 88 ton/m truck crane.
The trees were pretty close to an antique lamp post and two houses. The crane operater was not the quickest guy in the world

, and he had never craned trees before. (I didn't order that crane guy. I was a sub contracter for a landscape gardener company...)
Anyways... I really wanted to have the pieces/picks hanging nice and steady, so I wanted to attach the crane as high as possible on the vertical picks.
My question is: Does anyone have some smart ideas, to get a high pivoting point (hope it's the right word?) but a lower/stronger attachement point?
Especially in beech trees, I sometimes find myself picking a higher/weaker attachement point, just to get the pivoting point right, and keaping the vertical picks from spinning around.

Looking forward to see some good ideas!

[/ QUOTE ]

I didn't read everyones posts yet...so if i'm repeating, sorry. What i do if i need to put the sling/s higher than i am comfortable with to balance the load is choke the sling or slings on thick enough wood then put a half hitch above (at a point that will make the piece butt heavy) before clipping to the hook. I have also found that this method very very rarely nessessary IMO

 

[Blinky]

Thank you guys for this thread. Tomorrow will be my first crane job. Three pines, an oak and 7500# log on a house. I didn't even want this job but wound up getting it anyway... on Friday.

I'm cramming. I think it's gonna be fun, we have a 105t Grove and an experienced tree demolition operator and spotter. My real worry is processing the wood fast enough because the landing zone is small.

Thanks again.

 

[MikePoor]

Good luck Blinky! With Your experience you'll be fine. If something doesn't feel right....stop and rethink for a sec ..and put a butt line on it if you need. Anytime I need to "get a high but strong anchor point" I put a sling up maybe too high...then put a spider leg down lower (in case the pick breaks apart from having the main load bearer sling too high.

 

[Blinky]

Thanks Mike. Just had to reschedule because of a forecast for high winds. Looks like Thursday now.

 

[brendonv]

You still listen to weather men?

Since I decided not to pay for cable, I find I work so much more as I have no idea of the weather. They are always wrong anyways.

Good luck with your job, i was shitting bricks the night before my first crane gig, no sweat though!

 

[Blinky]

I'm pretty psyched. I've done my homework. the crew is experienced with trees, my chains are sharp... I was looking forward to it. It was hard to decide to call it but they're revising the wind forecast upward as we speak. I can't risk it.

But yeah, I don't put a lot of stock in weather reports most days. I don't have cable either.

How have you been Brendon?

 

[brendonv]

Pretty well, thanks!