Serius Rope Outer Sheath Failure

No. The omni is the new one that's all the rave. 2.6" diameter It's got a pretty good bend radius. I've Been rig n wrenching a ton of stuff lately but I would think the wear would be uniform on the lead end of the rope where it runs through the wrench a lot. Maybe it was a bad spot. Maybe I've also been putting too much big stuff on the rig n wrench. When it's big I haven't been going back up to remove it from the wrench. I've just added in a porty and let her rip. Could be a contributing factor? The 10% margin seems to depend on what the manufacturer suggests. In looking at ropes today I see some(don't exactly remember, maybe Sampson) show a 5:1 factor for swll. I'm not saying Sirius is a substandard product. Just don't think it holds up to abrasion much. I don't think this was merely a weight issue. Perhaps a bad spot plus the weight equals what happened. The core looked pristine. I ordered some 1/2 stable braid. Good wll for the price. I've just had too many rope men melt ropes like that on me.
 
Steve Connally said:
Checked everything and no rough spots. It was in a omni block. Large pine limb like maybe 12" diameter and about 25' long. It was about 50' off the ground and hit the ground as it was stopping due to a fence so it wasn't a lock off but not a free fall. 3 wraps on the porty. Stein Porty. It was a good sized limb but I've taken bigger. Nobody popped it with the saw either. Was watching it like a hawk.
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My armchairborist opinion is three wraps sounds like a lot. If the piece had a decent drop(?) and wasn't able to run, perhaps a weakened area would be more prone to parting.
 
I screwed up and ordered stable braid not thinking about the fact it sucks in the wrench. Gotta call treestuff first thing. I'm really at a loss. Maybe it was me, I'm thinking it was the rope. Don't know what to order to replace the Sirius. I really liked it but I need a go to medium duty line that will also work in the wrench. Help.! I'd like to just order another Sirius and see what gives. Maybe ease off it s bit and go to the bigger line more often. Idk
 
What about Vortex Steve? Although I would probably give the Sirius another try, hell you got a year out of it. In the big scope of things did it really owe you anymore considering what it cost vs what it paid you.
 
JeffGu said:
Likewise. And the Yale XTC 16-strand, too. And the 12-strand Forestry Pro. Really can't say anything bad about them.

12" x 25' is quite a bit bigger than anything I've tried on a 1/2" line, though. Even for pine, that seems like a lot of weight to me, but I wasn't there. Sometimes, I cut up a limb then weigh the pieces... I weigh myself on a digital scale, then stand on it with each piece, subtracting my weight back out. I'm just not very good at guessing, and they're usually either a lot lighter or a lot heavier than I thought they'd be. Probably looks strange if somebody looked in my truck and saw the scale on the floorboards. They might think I'm trying to lose weight by driving around town a lot. :loco:
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People will think you are some kind of drug dealer or something. I wonder the same thing. I buy fertilizer in a 40# bag then weight out 8# bags for the tank mix.
 
At what point in the rigging operation did it fail? Was it while the limb was initially loading, while it was falling, or as it was stopped over the fence? Was it butt-tied. Was it tied out where there would be leverage on the rope, after pretensioning?
 
To me, that sounds like a big piece for a 1/2". Following the numbers and please correct me if I'm wrong but isn't the WLL for rigging 15%, as opposed to the 10% for climbing. This means the WLL for the rope was 1185. You claim the piece was probably around 1325. Then of course it's dynamic on top of that, whether more or less dynamic, dynamic to some extent. To me this suggests the piece was too big also.

The rope appears to have very uneven (and significant) wear compared to most heavily worked ropes I have seen. However, when all is said and done the rope held, just the cover failed, and if I understand you correctly, there was not a loss of control of the piece? I will take that anyway of the week.
 
Never lost control of the rope. It was butt tied but about 18" out from the cut. The block was about 6" above the cut so it had an angle but not against the pulley side plates . It was cut, popped, dropped, and I looked down to make sure everything was going as planned and noticed the bright white core of the rope coming out of the port a wrap. I use the stein rc1000 with a 2 3/8" barrel diameter. To me it looks a little wider than a regular port a wrap. I also keep it verticals with the top secured using the strap and Biner. So defining wraps may be. Little different using this device. Wrap one is down from verticle, through the fair lead and around the anchor post and over the top of the bollard. Probably the equivalent of just loading the device. Wrap 2 once around 360' wrap 3 180 again and against the pin so maybe 2 or 2.5 360 wraps.
 
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Purchase date 7/8/15 so figure it went in service about 3 days after that. So I got 6 months out of it. Doesn't seem like enough. I feel like e wear on the rope is fairly uniform. I can take more pics but it looks fairly even to me. Couple spots here and there but I guess it only took that one spot!
 
I agree with 3 wraps being alot,almost seems like it could have been wrapped the wrong direction after put on the POW,it creates a crazy bend against a funny part of the POW
 
That's 2.5 wraps in my book. With such a big piece I might use that or even three depending on the wood, but again, that's with a bigger rope. I stand by my previous post but nonetheless encourage you to inspect the porty thoroughly for burrs (or nails in the stem?). No doubt you have already done that. Glad the core stuck it.
 
Steve Connally said:
....Maybe I've also been putting too much big stuff on the rig n wrench. When it's big I haven't been going back up to remove it from the wrench.....
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Seems like if you do this on a regular basis, you could easily be overloading your line. The rope you showed had a lot of uneven wear.
 
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