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michaelmay513
Sep 4, 2004, 4:25 PM
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I'm just curious if anyone uses a pulley in their TR system? Would it be better than running the rope through the biner or not.
Thanks
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potreroed
Sep 4, 2004, 4:32 PM
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I've seen this being done but don't consider it safe. Even on a top rope you could experience a heavy shock load. Stick with biners and double them up.
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overlord
Sep 4, 2004, 6:25 PM
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the thing with biners is that they do offer some friction and thus reduce the shock for the belayer.
imho its better to just stick with them.
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climbtothebeet
Sep 4, 2004, 6:29 PM
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i have use a pulley, and biners. the poully realky doesnt help at all. as far as safty goes, just back up teh pulley, that isnt hard to do. but, biners are cheeper anyhow. just grab 3non lockers and oposite and opose them. but, lockers would be MUCH better.
when i use a pully i realy dont notice a big difrenece in friction, but im shure there is a big difrence, so... do what u want, just dont die
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tyify
Sep 4, 2004, 6:42 PM
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Also you have to worry about the possible fact that the pulley may not be designed for top roping. Even TR can generate some forces that might possibly break it. You also lose the shock absorbtion part of the biners. My suggestion is to just stay with the biners and pull the rope through.
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thewyseclimber
Sep 4, 2004, 7:13 PM
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Just out of curiousity...what is the shock absorption part of the biners?
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overlord
Sep 4, 2004, 7:17 PM
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none on the part of a biner deforming.
but rope does pass over them metal wich causes more friction than a pulley system would.
its less likely to lift the belayer of the ground and slam him somewhere, wich is possible even on a TR.
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brutusofwyde
Sep 4, 2004, 7:35 PM
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In reply to: I'm just curious if anyone uses a pulley in their TR system? Would it be better than running the rope through the biner or not. Thanks
Scary topic. I can't believe I'm reading this.
Brutus
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overlord
Sep 4, 2004, 7:45 PM
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actually it isnt better. or worse. in normal cases it doesnt even matter.
use a pulley if you want, but make sure its strong enough.
biners are just more convenient and you know how to use them blindfolded.
edit: spelling
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climbersoze
Sep 4, 2004, 7:58 PM
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If you are using a pulley, make sure you have a pulley that will fit the diameter of your rope without a chance of the rope slipping off track. This could damage the rope. (i.e. pulley is designed for thicker rope, and you are using 9 mil rope - the rope could slip off the track and start running over the edge of the pulley and the side of the pulley housing. A hard shock could cut the sheath of the rope)
Also, I would not use a double axle pulley, just a single axle. Well, me personally, I would use neither and just use two opposed non-lockers or one locker.
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tyify
Sep 4, 2004, 7:59 PM
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You can sue a biner? :wink: :lol: Don't use opposing gated non lockers...get some OP Oval lockers...super cheap and do their job great. Oppose and double up those suckers and you have a good anchor.
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arschles
Sep 4, 2004, 8:47 PM
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use a couple of those pulley biners by DMM...instead of a pulley
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