what is the best way to set a Portawrap up?

[MattP]

that how i set it up but i dont use the Karabiner? is it to stop the rope from poping out/off? whats the best way to attach the fos to the whoopie sling i use a Shackle 5 ton. thanks for your help dave, matt

 

[frans]

[ QUOTE ]
As I am a contract climber and its important to be adaptable.



[/ QUOTE ]

I think this statement is very wise.

IMO good climbers should be proficient with all or most of the tools used in tree work.
Of course the FOS is a hybrid, so it does'nt count

-sorry for the derail....

 

[Mangoes]

DAVE!!!!

 

[davespencer]

The carabiner is only to give the option of extra security. If your friction device is going to drop and slam around during a catch, the carabiner(s) makes it impossible to lose a wrap.

If any of you have a fos and would like a laminated instruction sheet that fits into the tube, I think I have a few left over (they are for the older FOS7 but are still relevant) PM me with your address and I will mail it to you.

Its cool to check out this site again and see the names of old friends. I will try to come back more often. Unfortunatly I have moved away from tree work and even vertical pro to a large extent. (This is why it has been years since verticalpro.net has been updated)

Dave

 

[tockmal]

What do you do now Dave?

 

[Bsaville]

[ QUOTE ]
In use....

[/ QUOTE ]

I think it wise to choke up more on that set up so the sling and porta wrap don't slide up. I have seen this but it never happened to me. I have to say that I wouldn't be caught dead under that rigging. Sorry.
As far as being adaptable: very true. I will show a 30 year vet how to hook it up and he will adapt (forget) after the 3rd time. I just adapt out of the way and make sure he will be finacialy responsible for his actions. The boss today kept telling me just to cut stuff and let it hit the new concrete and stonework . After a few pieces of wood he adapted and sent me a rope and pulley.

 

[davespencer]

[ QUOTE ]
What do you do now Dave?

[/ QUOTE ]

I am now a millwright, currently working on maintaining a high torque steam turbine in a nuclear power plant. The work is suprisingly similar in a lot of aspects to tree work, just a little more extreme. I have rigged loads with a 430 ton mobile crane, and I have welded while hanging upside down at 250 ft high. Lots of other cool things too, like measuring things to .001 of a milimeter. I love my new job.

Dave

 

[Tom Dunlap]

Don't be a stranger here Dave!

Share some pics of your work with us if you can.

 

[Mark Chisholm]

Excellent to hear that you are doing so well Dave!

 

[tockmal]

[ QUOTE ]
[ QUOTE ]
In use....

[/ QUOTE ]

I think it wise to choke up more on that set up so the sling and porta wrap don't slide up. I have seen this but it never happened to me. I have to say that I wouldn't be caught dead under that rigging. Sorry.


[/ QUOTE ]

I wasn't refering to the sling sliding up I was talking about taking up the extra length of rope that hangs out of the sling's spliced-eye that the porty is attached to. Just choke it right up so the porty is right next to the stem, no slack hanging loose porty, get it?

As for you saying you 'wouldn't be caught dead under that rigging' Why not? Its perfect - The way the portawrap is set up in that pic needs no improvement whatsoever, in fact it is possibly the best example of the correct way to set up a portawrap ever seen.

 

[Treespotter]

[ QUOTE ]
<font color="red"> That's a FOS...Friction On Site </font>

A variation on the theme of having a movable bollard, http://en.wikipedia.org/wiki/Bollard

Dave Spencer invented the FOS. Check it out:

http://www.verticalpro.net/

The rope wrapping is similar to a POW...

[/ QUOTE ]

Friction On Site?????

I always thought it meant something completely different.

 

[Treespotter]

[ QUOTE ]
in fact it is possibly the best example of the correct way to set up a portawrap ever seen.

[/ QUOTE ]

Mmmm. I wonder.....

 

[jerseygirl]

Commercial Break

<font color="red">WELCOME BACK WOLTER </font>
nice to see ya



OK

back to normal programming

 

[tockmal]

[ QUOTE ]
[ QUOTE ]
in fact it is possibly the best example of the correct way to set up a portawrap ever seen.

[/ QUOTE ]

Mmmm. I wonder.....

[/ QUOTE ]

Wolter,

Welcome back, good to see you haven't lost your sense of humour.

As for the Portawrap set-up, its damn near perfect.......but why oh why didn't you use the cow hitch?
I can only assume your dead eye sling is too short for tying a cow hitch? but in the photo it looks like the sling is long enough? I'll get a photo of the cow hitch for ya.

Don't you find the timber hitch works loose too easy?

 

[Treespotter]

[ QUOTE ]
As for the Portawrap set-up, its damn near perfect.......but why oh why didn't you use the cow hitch?
I can only assume your dead eye sling is <font color="red"> too short </font> for tying a cow hitch?

[/ QUOTE ]

Too short indeed.
This picture and your comment shows you always have to do it perfect.
The picture was shot for a photo shoot for our basic tree climbing course manual.
The picture is only intended to show the friction device and not the setup. BUT.... Especially for pictures used for tree climbing classes ALL has to be perfect. A cow hitch or even better an adjustable sling would be the better option (you can get a nice 'snug fit' from the device directly onto the trunk).

 

[Riggs]

Setting the port a wrap in one spot on a tree works only part of the time . That picture is a small Dia. tree , what about a large dia. tree with multiple rigging crotches ? no rope on wood , full directional lowering . Than what ? The Clock knot is the best way , put your money on it .

 

[treebing]

OOH ooh teach me the clock knot! I have never even heard of it. Sounds sweet if it does like what it sounds like

 

[Blinky]

Yeah, cool... I like to learn new knots... give it up Riggs.

 

[Tom Dunlap]

Wayyyy back in the TB archives...

http://tinyurl.com/ossjl

 

[tockmal]

Tom, thanks for posting the link. You guys had very high brow conversations back then.

About 6 years ago, at some point in the thread, you said;

"When I set up any rigging I follow an axiom that I heard Don Blair use. If the efficiency loss of a knot is the deciding factor in your rigging, get a bigger rope or cut smaller pieces. I think that most people who have even a casual understanding of the forces in rigging follow this axiom."

I don't know when Don Blair said it, and I suspect many treeworkers thought of it before him, but it should be repeated time and time again. It is one of the fundamental principles of rigging.