Petzl Shunt

[KentuckySawyer]

What are the appropriate uses of the Shunt for our industry?

Backup of single line ascender? Double line ascender with no other backup?

 

[Tom Dunlap]

It works really well as an upper ascender in a RADS system. Using the release cord it self tends while working down the rope.

 

[Tom Dunlap]

The lower using an I'd. If I were to use RADS these days I would be using my Eddy.

The cool thing with the Shunt and the tether is that as you move down the Shunt slides with you. Keep the tether short enough to always be able to reach and you'll have a nice setup.

 

[FlashTreetop1]

I think that it is a great tool to back up a singleline handled ascendor, or I have seen guys use it to back up a double line.

Although I really prefer an ISC Rocker to backup my ascendor when going single line.

D.W.H

 

[Waldo]

can the shunt be released under tension?

 

[FlashTreetop1]

I dont think so, but I could be wrong. I know that your body weight is what "loads" it, so I cant see how releasing it would be easy.

D.W.H

 

[Tom Dunlap]

If a load is on the 'front' eye, where the Revolver is in my setup, you would need to raise the load to move the Shunt.

FT is right...it is as hard as any cam/lever to release.

 

[KentuckySawyer]

Can you double line footlock with just a Shunt?

 

[Waldo]

then what is the tether for in your set up, Tom?

 

[Tom Dunlap]

As you move down the rope, using the Eddy/I'd to descend, the tether pulls the release tab on the back of the Shunt and it follows you down without having to tend it manually. When I stop, it's right there at arm's length not back up top where I have to reclimb to get it.

My friend Pierce showed that to me years ago and it was a HUGE addition to making SRT functional.

 

[Waldo]

thats pritty slick... your a smoothie. i can imagine the girls are just clawing at you.

 

[Tom Dunlap]

Yup...these two girls are clawing to get to me now!

 

[FlashTreetop1]

Yes you can double line footlock with a shunt. I have used it many times.

D.W.H

 

[turbineclimber]

Be careful if you are going to use the shunt as a back up as they slip quite a long way. Not quite as bad if you have it above an ascender as the main cause of failures with them is when they are used as a back up on a cows tail and they slip to the knot with explosive results.