Chat & Social > The Bar - General Chat
Bow Shackles
muddyweb:
It's all to do with the type of tests they undergo and the minimum safety factor they carry. It's not a con Ed... honest ;-)
Wanderer:
You'd think they'd undergo the same tests to breaking point regardless. the only diference being that something being lifted is going to fall back on to the floor whereas something being pulled (in our field of use (pun intended)) going crashing back to the bottom of whatever it's trying to get out of.
Some of the stuff being touted around are obviously nowhere as strong as they ought to be. I doubt some have even been tested to the same standards (having been imported)
The only problem I have ever had was down to my own operator error.
Having forgotten to fit my (get out of the brown smelly. I'm stuck) straps and shackles I had to do a shackle up under water and mud.
Basically it went tight and I thought that everything was Ok but the mud meant it had gone prematurely tight adn wasn't on properly.
It came off ripping the few threads that were holding it. Luckily no one got hurt but a lesson learnt.
Ed
freeagent:
the ratings (ie 4.75t) are for lifting. lifting gear typically has a safety factor of 7 or 8:1, that means in theory you could pull around 30 tonnes with it.... personally i only own proper rated, tested shackles (not the cheap unmarked ones you see at the shows) and would be more than happy to use a 4.75t shackle for all landrover aplications.
even the harshest kinetic recovery only exerts around 12 tonnes, and you should be using a bridle to split the load anyway.
anyone who breaks shackles while recovering a landrover is either using unsuitable kit or doesn't know what they are doing....
Petergg:
--- Quote from: "freeagent" ---the ratings (ie 4.75t) are for lifting. lifting gear typically has a safety factor of 7 or 8:1,
--- End quote ---
I think you will find that it is x 6 for Alloy and x 4 for steel.
Peter
muddyweb:
--- Quote from: "Petergg" ---I think you will find that it is x 6 for Alloy and x 4 for steel.
--- End quote ---
Whatever it is, it should be marked on the item... all my straps are 7:1, can't remember what the shackles are... they all need cleaning anyway.. again..
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version