Isc micro grab

[atree]

Checked my micrograb today and noticed that the wire is coming out and some of the strands have broken?

 

what is the purpose of the the wire and can i replace the wire in it??

 

ta

[18 stoner]

Mine did the same.

 

Had two seperate opinions on if it was needed (both LOLER inspectors) but ended up replacing it with bike brake cable.

 

I did try it without the cable in, but it does give you a bit of a shock if you let pressure off it, then back on and it doesnt bite again:001_huh:

[atree]

How do you replace the wire?is it easy?

[yorkshire pudding]

Should be a little grub screw in there somewhere, undo it with a long alan key, bung a new one on, sorted.

[Alinicoll]

The wire is there so that if you are 200ft up a cliff and need to switch it to a different rope by removing the nut you don`t drop it. For tree stuff its not essential. Just take it off. It doesn`t affect the function or safety.

[Pete Mctree]

The wire is there so that if you are 200ft up a cliff and need to switch it to a different rope by removing the nut you don`t drop it. For tree stuff its not essential. Just take it off. It doesn`t affect the function or safety.

 

I strongly disagree with you on the safety issue, although the wire does act as a keeper it also has a more important function. The wire acts as a spring holding the cam against the line. So when you lean back onto the system is grabs reliably. Without it you could find yourself fallind backwards until you hit your stopper knot. Not pleasant or safe IMO

[yorkshire pudding]

I do think it helps the return of the grab to be honest, best to have it there than not in my opinion.

[Alinicoll]

I`ve been using it like that for 4-5 years and was advised of that by a rock climber of 20 years experience and also a loler inspector. I`ve never found it necessary. How people set it up is up to them of course but i think if it was intended as a spring it would be heavier.

 

Just my thoughts though.

 

They do slide sometimes but only when the cam is caught.

Edited November 21, 2009 by Alinicoll

[atree]

I strongly disagree with you on the safety issue, although the wire does act as a keeper it also has a more important function. The wire acts as a spring holding the cam against the line. So when you lean back onto the system is grabs reliably. Without it you could find yourself fallind backwards until you hit your stopper knot. Not pleasant or safe IMO

 

Think im with you on that one pete,will the supplier have spair wire for it?

cheers

[bob]

any cable of approx size will do

snare wire

throttle wire

bike brake cable

are all ones i have used