I suppose they push the envelope all for great footage,Quote:
Originally Posted by Rossco
I'll try to find out what the breakage rate was,
I suspect that LUX didnt fair well on some of the terrain
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I suppose they push the envelope all for great footage,Quote:
Originally Posted by Rossco
I'll try to find out what the breakage rate was,
I suspect that LUX didnt fair well on some of the terrain
They used some of the footage, with different narrative, for the debut of the series. This clip shows the rest of the footage.
Apart from a few jumps by the lead characters + cameraman over a live snatched strap, they're quite welcome to drown their sponsored vehicles.
Thats disgraceful.Quote:
Originally Posted by P4trol
All snatch straps should be humanely euthanised by putting them in the freezer for an hour or two prior to use.
Taunting them by jumping around just causes undue stress
Or is that Mud Crabs... dunno been a while since I had one...
Autocorrect... Makes me sound like I'm from a call centre.
Great work on here guys. very helpful
Hey all, few quick questions after reading.
So, say I'm bogged deep, and pulling up hill, doing a double line pull. Say, just as a number, with the double line pull, weight on the winch is 5t. Does that mean weight on the pulley is 10t, and as such, the weight on the shackle holding the pulley is also 10t? I only ask, because I haven't seen too many 10t shackles around. Would using two shackles help spread the load, or is it just making it a more lethal projectile?
Also, if I need to winch a car behind me up a hill, but there is no room to turn around, any drawbacks to hooking the winch to a pulley on an anchor say, to my front left, and from that pulley back to their car - provided I can get the rope to their car without hitting mine or anything in the process?
1. Don't try and pull a deeply mired vehicle (uphill, downhill or level) unless you have done everything you can to reduce the effect of the Bog and/or stiction IE some shovel work.Quote:
Originally Posted by Throbbinhood
2. If you have 5 ton on the winch on a double line pull then you must have a Unimog on the other end
3. You don't need a 10 ton shackle for recovery work. Shackles are rated to Lifting Standards and depending on grade, a 10 ton shackle will be good for 40 to 70 tons, weigh about 10 KG and be the size of a large dinner plate.
You will find that a very difficult evolution in a practical world IE if there isn't room to turn then there usually isn't room or ideally placed anchor points to rig the redirects requiredQuote:
Originally Posted by Throbbinhood
In a theoretical world you can do it as it is no different to a redircet but in practice don't forget you will need to allow for a friction loss (or load depending) of 10% for each snatch block you use
Quote:
Originally Posted by the evil twin
you saying its a long time since you had crabs/crab lol
Sorry, I didn't quite phrase my question that well. It's less of a 'not being room to turn', and more, say im going up a hill, and turning is impractical because of angles. I could go up, turn around, and come back down, but that would mean having to reverse back up the hill, which would present it's own set of dangers, and may not be practical. But if it effectively works as a redirect then it should be sweet :)Quote:
Originally Posted by the evil twin
you halve the effort you are still pulling what was it 5ton
twice as slow
Yeah, it's the old "in theory" thing.Quote:
Originally Posted by Throbbinhood
In practice trying to rig from the centre of your vehicle out to one side or the other then back down to the stranded vehicle is almost always impractical due to not having enough snatch blocks, winch extensions etc .
Put it this way, with a standard length winch cable, one or two snatch blocks and one vehicle behind the other it just is not going to happen.
You are going to have to rig forward at a small enough angle to not side load your winch OR use a snatch block redirect to get to the side THEN, another snatch block to redirect back and I would suggest at least 1 probably 2 more to redirect onto the front of the stranded vehicle and/or clear the ground
That is a lot of cable and blocks and you still have only 1:1 line pull
One option would be rigging his vehicle to the rear of yours and winching/driving in concert using the gear on your vehicle to give you a 4:1 advantage on your winch.
That sounds like the go. Thanks for the help mate.Quote:
Originally Posted by the evil twin
Another quick one.
Found a bloke on the weekend who went too quick around the corner and was almost over the side, car was balancing on its chassis and would have been a long way down. We had two cars with winches to recover, and chose to run pulleys off a tree to redirect and basically pull him sideways (our thinking here was that it pulls our cars towards safety as well as his, rather than a direct pull which may have just pulled us towards the edge).
Question is, if only one of us had a winch and was struggling to pull sideways with only the redirect, would have a pulley from the stuck vehicle back to the tree with the redirect give us an advantage?
Yes .
thanks for the good info. we expect a lot from our winch cables .
I may have missed this elsewhere
When I use a pulley to setup a mechanical advantage and hence reduce load on the winch, do I also reduce the load on the rope/shackles/pulleys?
For instance, say I'm doing a 3T winch pull, with no pulley it's 3T on the winch, rope, straps. With a pulley involved, it's 1.5T on the winch, is it also 1.5T on everything else?
Quote:
Originally Posted by Throbbinhood
1.5T on the winch drum
1.5T on the winching vehicle anchor point and any rigging
1.5T on the cable from the winch to the snatch block
1.5T on the cable from the snatch block back to the vehicle anchor point (it is the same cable so must have the same load)
3.0T on the snatch block (2 cable loads at 1.5T each)
3.0T on the anchor point of the snatch block and rigging to whatever you anchored the snatchie too.
Thanks mateQuote:
Originally Posted by the evil twin
Is there ever a case where you multiple or increase the load on equipment by hooking up redirects/double/triple line pulls? Or for the most part it halves, and stays the same as original on things like pulleys and anchor point the pulley is connected to?
Halving loads etc only works in a perfect world.Quote:
Originally Posted by Throbbinhood
Real world use means snatch blocks, pulleys etc introduce their own loads IE depending on dia, cable type etc it may be that you only get a, say, 45% reduction instead of the full 50.
That is no biggee unless you are up on the ragged edge.
The other thing to be aware of is Sling Load Angle on bridles, very common, or if loading a redirect which is quite unusal but may be handy if recovering or winching around a curved path
Thanks mate - I just want to make sure I don't ever increase the load on components. Would hate a triple line pull to result in a 3t pull being 9t on the snatch block, but from the sounds of it, the snatch block only ever gets the original load sort of thing.Quote:
Originally Posted by the evil twin
Quote:
Originally Posted by the evil twin
Thanks for the info mate, often wondered about this particular question
Death By Towballs and Hitch Receivers left to Rust.
click on this pic and consider your receiver.
Attachment 60552
That would be a boat trailer for sure and that receiver must have had a crack in it or something and allowed it to fill with salt water.
Even so though, it is a bloody good reminder. I would say that driver was very lucky he wasn't travelling at any great speeds when that came off!
Surely you would have noticed that kind of damage earlier?
i couldnt get my towball hitch out recently when i was out 4wding(i wanted to do a recovery but we had to work out other methods out. anyway, turns out the pic was rusted as fck and the hitch had swollen with rust and just wouldnt budge. it took me a week of soaking wd40 followed by attaching the towbar to a VERY short chain which was wrapped around a telegraph pole and little bit by little bit gently nudging it out. needless to say i replaced the culprit and cleaned out all the left over rust!!!
You'd be surprised how often they are like that. When my mate bought his GQ it did not have a pin through the tow receiver but the previous owner used it as a tow vehicle... the rust was keeping it in and my mate had big troubles trying to get it out. The tow bar had to come off in the end and oxy and press sorted it out.Quote:
Originally Posted by rusty_nail
Wow! Better to remove hitch when not in use and dry it off if wet or after washing. The one that broke looks like it's made of cardboard.
Hey guys, another question..
Tree trunk protectors, are their rating's use when used end to end? It's sort of hard to explain, but around the tree, isn't the strap in effect doubled up?
Just wondering if it's safe to use a tree trunk protector as a short winch extension strap.
I would use it as a short extension without hesitation.Quote:
Originally Posted by Throbbinhood
No need to double it up? As in, the two eyes of the strap on one end, and a just looped through the strap?Quote:
Originally Posted by MudRunnerTD
Or fine to just go one eye to winch hook, other eye to shackle elsewhere type thing? Or are both ways fine?
I only ask as I did a double line pull yesterday, found myself a bit short on winch rope, so had tree trunk protector around tree to a shackle, with another tree trunk protector with one eyelet on that shackle, other eyelet on a snatch block. Just want to make sure this is ok to do in future..
Being new to the group and new to 4x4 the information provided is a great help and very informative
Thanks
Here is what happened when westy tried that lolQuote:
Originally Posted by rusty_nail
Attachment 69239
You need to attach as close to the bottom of the pole as possible, not to the top. Never underestimate the power of the mighty Nissan!Quote:
Originally Posted by Kimbo63
I need to leave this here too.
When it goes wrong it is vicious. This guy was lucky he used his arm as a cable dampener instead of his head. That hook would have gone straight through a Child.!
Shit gets Real, Fast!
http://www.nissanpatrol.com.au/forum...017/03/136.jpg
STOP, THINK, BE SAFE.
TAKE 5
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After seeing that photo it's made me rethink safety when doing recoveries .
As a rigger I have been amazed at the silly practices /no common sense and lack of proper education on the subject of recovery.
From using tow balls to snatch people out to incorrect shackles , sizes of snatch straps and recovery points not fit for use.
Its not hard nowadays to get all the correct rated gear at a decent price. There isnt an excuse to not have a damper of some sort as you can also use a heavy piece of cloth of some sort. We can now get soft shackles which adds to the safety and eliminates a massive hunk of steel flying through the air.
People standing way too close and in the wrong position when involved in a recovery is another.
How often do people really check their gear? Do they throw that snatch strap away after a few recoveries like you are meant to?
Does the person doing the recovery snatch actually know what the hell they are doing and not going to take off at 400km/h to get you out?
Is there another safer way to get out? ie winch or recovery boards.
One things for sure , i wouldnt want myself or anyone else involved in any recovery ending up like the guy above or worse. Why risk it for an extra few mins to do things properly. Yes sometimes there is equipment failure but its very rare with the right equipment fit for use and the correct techniques used in recovery. Besides if you know what may go wrong you should be able to help prevent it in some way.
I hate the practice of people leaving shackles on their vehicle driving around town too (thats another issue altogether)
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Im glad not one of my recovery points has failed.
and as I told ppl at point of sale "its a piece of recovery gear
it will need replacing at some stage" If they listen thats another
thing,
Thought you might be able to add this safety check onto your awesome list thanks @MudRunnerTD mate!
“Always check your tree trunk protectors for eight legged hitchhikers before carrying it around your neck to the next tree needed”
http://www.nissanpatrol.com.au/forum...019/05/267.jpg
Pretty sure a cheeky Ellis Track Huntsman got me on our weekend adventure just conquered, itchy friggin nip on the back since Saturday arvo I tells ya, lol :-)
http://www.nissanpatrol.com.au/forum...019/05/268.jpg
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Quote:
Originally Posted by MB
That's nothing, just a third nipple I reckon :D
Funny you say that Jack mate, even Tapatalk wouldn’t let me add the picture initially until I cropped it a bit, must have thought it was a real nip and censorship blocked it, lol :-)
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https://www.youtube.com/watch?v=kW304fXuG1M
This guy seems to know his stuff.
The small problem of dyneema rope pulling out of the anchor point is more likely with some winches when using the first layer on the drum.