Changing simple bobbins

[mikem]

The old version were replaceable, I don't think the new ones are

 

[ChrisB]

I don't think the new ones are

Correct, the new model looks as if they're riveted somehow. I guess Petzl decided they might be liable if somebody replaced them incorrectly and was injured as a result. So they made the new ones non-replaceable, but stainless for longer life. I don't know if that means there could be a problem with heat?

 

[pwhole]

I've been using stainless bobbins on my Kong Banana for several years now, and don't really have any excess heat issues. They're faster than aluminium, but last a lot longer - the originals were leaving streaks on the rope they were so soft. I only flipped mine a few a months ago after about three years' constant use.

 

[i think it goes]

In case anyone was interested and for future reference, Petzl got back to me about the 'glue' they use to seal the simple bobbins. Here's what they said:
The glue is LOCTITE type medium

 

[traff]

In case anyone was interested and for future reference, Petzl got back to me about the 'glue' they use to seal the simple bobbins. Here's what they said:
The glue is LOCTITE type medium

How helpful of them! If you've ever looked at the Loctite range of threadlockers and retaining compounds etc, you will know there are hundreds. Type medium is a bit vague to say the least. A squirt of 243 will be just fine.

 

[paul]

How helpful of them! If you've ever looked at the Loctite range of threadlockers and retaining compounds etc, you will know there are hundreds. Type medium is a bit vague to say the least. A squirt of 243 will be just fine.

Or Loctite 242. 243 is more resistant to oil, so not needed with a Simple bobbin. Loctite 242/243 thread lockers are designed to prevent the bolt undoing accidentally but will still undo when a suitable tool is used.

 

[Leclused]

Just another bobbin story to show you that material inspection is a must.

During a summer expedition I was using my thrusty petzl stop. But I did not checked my petzl on beforehand that year. Thinking that is was still ok.

However when arriving at the bottom of the entrance pits at -440m in the AN51 (Anialarra system). I noticed something strange.

These are some pictures of that bobbin. I kept the bobbin as a reminder for myself, to always check your material.

 

[Leclused]

Just another bobbin story to show you that material inspection is a must.

During a summer expedition I was using my thrusty petzl stop. But I did not checked my petzl on beforehand that year. Thinking that is was still ok.

However when arriving at the bottom of the entrance pits at -440m in the AN51 (Anialarra system). I noticed something strange.

These are some pictures of that bobbin. I kept the bobbin as a reminder for myself, to always check your material.

View attachment 16602View attachment 16603

Little correction: it was from my simple not my stop 😀

 

[Huge]

I have a top bobbin somewhere, from my old stop, that looks like that! 🙂