Great info. The only thing I would like to mention is the backing off of the pin. I took a course with Crosby and the rep said to never back the pin off. It was standard procedure where I worked to tighten the pin all the way then back it off a 1/4 turn. The reason folks did that is that is sometimes the pin is tough to get out after a lift. The Crosby rep said that there is a possibility that the threads of the pin could stretch more if the pin was not fully engaged. Also you run the risk of exposing your sling to the pin threads which could damage and, in a worse case scenario, cause your sling to totally fail during a lift. The shackle is engineered to have all threads fully engaged. Always fully tighten your pin. You can always use a wrench to loosen it after the lift is completed safely. Thanks again for the video!
Good video. If you read the Crosby literature, you can side load a shackle and have your slings outside the 90 degree marks. As I recall, the shackle can support its full load capacity within the marks. Outside the marks it's reduced to 80 percent. In a side load it's reduced to 50 percent. For example, we have a forklift with a hole in the end of the fork. We use a 1" shackle through that hole to lift things with a chain or sling. The shackle is rated for 8.5 tons, but reduced to 4.25 tons for a side load, plenty for our application.
Crosby provides a WLL reduction chart that allows you to side load any shackle up to 90* with up to a 50% decrease in capacity. Also if your sling angle is less than 120* if using two or more slings you can use the shackle at full capacity.
This is a very good video. I'm 32 years crane operator. Local 487B Miami, with them for 17 years. Currently working in Israel, with Intel-Israel. I'm lifting 11.5 ton 50' beams. All day, I use 8.5 ton shackles on each end. With 2, 18 feet 8 ton " High Performance roundsling, hooked to 2, 10 foot 16 ton chains. I keep it long in order to stay within the 45 Degree angle. Also, from time to time I slide my roundslings so the I do not work with the same area. Yes, I keep my crew rigging with the screw in the hooks.
This is a fantastic tutorial on rigging. I have been in the industry for 30 plus years and I always back the pin off a quarter turn or maybe a bit less. If you are using your equipment within the design specifications there should not be any issues. There is most certainly a calculated risk with anything you remove from the ground with any rigging even when the equipment is well maintained and within operating specifications. The risk is always there..I agree with what you said wholeheartedly.
@@ToTheTopCrane you nailed it 👍👍👍 I was on a boat shrimping net hung down shackle head half an inch of play on pin both sides and now I know way what happened, happened I just learned thankyou and enjoy the weekend
I use shackles and slings and straps and chains and stuff everyday operating a tow truck and it is definitely not repetitive back and forth motions certainly not long enough to try to back that screw out so I just snug it down hand tight and back it off a touch and I've never had one come out on its own
Great video. And yes I just Refreshed my Rigging Cert through the International Union of Carpenters and they say now we don't turn back shackle pins at all.
What does a Union Carpenter need a Rigging cert for? On a Union job site the Ironworkers are doing 90% of the rigging with Boilermakers doing their own also. This is the problem that most trades have with Carpenters, they want to be a jack of all trades and they end up a master of none.
I only drive a 12k telescopic forklift with a 60' vertical and 47' horizontal reach but have always tightened the pin fully and then back off half a turn. Our work it quick paced and very repetitive and never involves any lengthy picks or overnight slinging. Just found your channel and digging your knowledge ;)
my job is rigging. I agree that tips for the safety. i always follow the book.....thats my the best way.. .. rigging the one of the dangeous job. support 100% keep it up boss......
Gary, I am glad you learned a little on this one. My main concern is...How are you doing? I know you had a few stents put in. Are you holding up ok? Thanks for watching! 🙂👍
Very informative video! I had recently heard that shackle manufacturers are stating that the shackle warranty is only valid with the screw pin snugged up. Which could potentially be brought up in a legal situation if something were to go wrong with a pick. I know riggers have been loosening a quarter turn for forever. Any input on that? Thanks for the videos! Keep them coming!
It's all about physic's and common sense. Great explanation, thanks. I'd be willing to bet those shackles are rated for X amount but in actuality can handle a good bit more, but not a good idea to do so.
+Duncan MacKenzie, all rigging has a 5 to 1 safety factor (according to the OSHA standards). Unfortunately, in today's world, common sense isn't so common. We see stuff all the time that would blow most people's minds. Thanks for watching! 🙂👍
+Kenny Mysak, thank you! I try to go as in depth as I can without confusing people. Thanks for checking out and subscribing to my channel, also, thanks for watching! 🙂👍
The only time I've seen shackles work loose is doing duty cycle type work- mostly wrecking ball and clam bucket work.. and we wired the shackle pins to make sure they didn't back off...
In those cases you should be using a shackle with a bolt and a castellated nut. We had the draglines connected to magnets with a shackle with a bolt. The material handlers also used one to hang the magnet.
Great video bud!!! I have another idea for a video but it’ll be a pain. You can go over some of the different cables, left and right lay, over and under the drum
Oh boy! That may be opening Pandora's Box. That would be delving into the realm of crane instructional videos. Not sure I want to go there. Maybe this winter when footage is scarce. LOL. Thanks for watching! 🙂👍
To The Top Crane yeah that’s extremely true. If there was an accident someone will throw you under the bus. The only reason that I mentioned the cable is I have my IPT book open in front of me. For those on here that don’t know, IPT is a crane book. Jimmy I’ll keep thinking and looking for stuff that everyone would like to see. Stay safe brother
@@richardsavaglio661, I'm not worried about being thrown under a bus. It's all the technical stuff that would go way over the average person's head that may be tough. I'd be answering comments for a month. Lol
@@ToTheTopCrane I want to learn. Not that I would or will ever use it, but I just love to learn. I work for my county road department. We have a few that can operate a side mount boom mower. But I'm the only crazy one willing to take the machine to its limits and survive. I respect the machine but not afraid of it.
@@adamgipson6151, there is alot of information on just wire rope alone. I could honestly make 3 or 4 videos just on that subject. Thanks for watching! 🙂👍
Yehmen ! I worked “with” many riggers as they were the ones who would move the equipment that I was responsible for aboard naval vessels (surface craft & submarines). I often say, I would enjoy being a rigger if I wasn’t a marine machinery mechanic for PHNSY shop 38 (retired after 35yrs). Needless to say I have many stories to share (both ah ha’s & holy crap).
12:32 Well yeah that's what I was wondering regarding your first point. I'm no crane operator but I watch a lot, & I help rigging a bit. Literally everything I've ever seen lifted that has lifting lugs is lifted like that with shackles & the pin always goes through the hole.
Jimmy, are you going to cover estimating center of load and center of gravity for irregular pieces? For a few decades, I've been putting anti-seize on pin threads, and backing the pin off a little for most lifts. Never had a pin back out even a little. This video was awesome instruction for using shackles! Thanks.
i dont like using anti-seize on any rigging, just bacause it can get onto the strops. And atleast where i work any grease, oil, paint etc. on strops means we dont use it. Norwegian law.
@@mattis537 Makes sense. Grease, paint and solvents destroy synthetic straps. I started using anti-seize on screw pins when I was working on the Pacific coast. Even galvanized pins rusted in salt water after a while. Anti-seize reduced that problem. But, we did have to be careful not to get any lubricants on straps
Ha! You did do it! Thanks for the effort. Even saw you sweating on that one! I know you said in your 1st video, this wasn’t going to be a ‘how to’ channel but rigging and cranes go hand in hand. I think it’s important to get proper and correct info out there on rigging. How many times has this happened to you: You’re in the seat, working in the blind. Signal man walks over to the edge of the deck and gives you the ‘get high’ sign. You cable up and as soon as you see the load you say OMG! Also, except with structural iron workers, what’s the first tool they go for to loosen up a shackle pin?? THE HAMMER 😖 and they miss a few times and dick-up your sling. Right? I know you’ve seen it. Back the shackle pin off a 1/4 turn. Great vid and info. Thanks again 👍
You asked for it. So, I made the video for ya. It was HOT in the ole crane building. Glad I didn't spend anymore time in there than I did. Thanks for watching! 🙂👍
@1:57 I've ran across many situations where only the pin will fit thru the lifting lug..gotta use it upside down. Or else the shackle isn't strong enough to hold the weight. As experienced as you are I'm surprised you'd take such a strong stance
If straps get a twist in them? Is it a major safety concern or just hard on them with unwanted wear? Thanks for bringing common sense back to the masses!😎
It depends on how much twist. Technically it should all be twist free. However, if there's a few gentle twists that aren't rubbing on something or causing damage to the strap, I generally don't get too concerned. Thanks for watching! 🙂👍
@@ToTheTopCrane I wondered if they got a single twist if it was grounds to start whole rigging over. Sounds like it just depends on situation. Thanks for answering all my questions!
@@ToTheTopCrane I truly enjoy them and they just continue to get better. Hope you were able to rest some today before heading back to rat race tomorrow?!?!🏗
Cool Beans. 1. It is confusing to say that just because you take a different angle to lift an object that it increases in weight. I think much better would be to State the actual physics where the force applied on the shackle would increase if the angle-of-pull becomes too parallel to the ground. In a former life I looked to become a rigor working with cranes. My studying off an online Union manual was to state to keep the angle of pull close to 45° to the direction of oull. My affliction with acrophobia pretty much kapashed that dream. 2. While it may take 7 full turns for the pin to unscrew, may you tell me at which turn of the screw that the shackle is no longer rated for 13 tons? One turn, Twontrina, Three...??? Seems to me that a clevis would be a better choice than a pin. The clevis can freely rotate without unscrewing. The pin that goes through the whole of the pen can be pulled out with a finger no tools required faster than rotating a pen 7 turns. But this is just me: what do I know...
Great video, great instruction. Excellent representation and comments on "real world" situations and how the theoretical is not always the challenge for practitioners. Not sure how you can teach common sense, though, and that is the problem. Effective learnign and knowledge starts with facts first and then the application of the factual knowledge to the real world................not the other way around. In other words, "book smart" first and then practical experience= optimal and safe operator. He implied this when he said you have to "know where to draw the line" and that only comes with the perspective of factual knowledge combined with practical experience. If you don't have the formal, book knowledge of the physics involved in this, you have "monkey see, monkey do" learning and some of the monkeys do things where only luck or some other variable saves them. Unfortunately, their luck runs out with enough repetition of the faulted procedure.
I think I know the answer, but I don’t have a set of shackles in front of me to experiment with - Is there a rule for shackle to shackle connection, orientation? Pin-pin, shackle-shackle, pin-shackle?...don’t wanna beat a dead horse here.
I’d love to get your opinion on the rig we used to use for flying tall steel columns. I know you probably would never publicly approve of it but I bet in your head you would probably say “I like that!” It’s a bit complicated to try and explain. I’d have to draw you a picture and I don’t know how to send those on RU-vid comments. You may have even seen it. I’m in So. Fla so I don’t know if it’s just a regional technique or maybe everybody knows it. It never failed.
There is in effect a National law from OSHA that all who rig take and pass a basic rigging class and hand signals and keep both cards in their wallet. All States this applies.
Turk 317 Also a man lift and forklift telehander ( Lull) requires such. My buddy got nailed running a lull by OSHA big fine not having card. In NYS you need a license to run crane or arrested in handcuffed. Seriously. NCCCO and Crane Institute has OSHA approved classes all over.
Also a lot of guys look at a sling and see basket configuration rating. But for true basket configuration rating you would need to use a spreaderbeam. Even 1° angle is not a true basket
Very informative, makes sense, just never really thought about it. What about putting the shackle directly on the load like with ears, I assume pin in the ear is correct?
I have an argument with one of my riggers. He says It Is okey to attach two shakles on a master link then throw it to the hook. Obviously the shakles Will have sling holding the item as gravity pulls down and crane is pulling up.
Iam doing fine tks 4 asking. I do pull some times can u put the hook threw the shackle instead of the pin ive been doi g that ever since i can remember my dad did it tks gary
Since you are a truck/tractor puller, I don't know that it would make much difference. You are loading the shackle inline regardless of the direction of hook up.
I know some manufacturers allow full load at 45° angle, (greenpin for example) but normally a reduction of 30% or WLL x0.7 is required. You can actually side load a bow shackle though, the reduction factor just becomes 50% or WLL x0.5 Where I'm at we can't use this type of shackle for repeated lifts, a nut with some kind of locking is required, for that reason allone my company doesn't use them (which can be annoying because on some lifting points in the field you can't fit a bowshackle that requires a bolt..)
Is it legal to join 2 shackles I had to rig up to a door on a steam generator and a a tiny 1T shackle was the only 1 that fit on the attachment point but my slings would not fit so I decided to join a bigger shackle
you tighten the pin and leave it tight. every time you back it off and use it that way it will still be tight after use because you have stretched your shackle, and keep stretching it with each lift. if the pin does not reach the outside of the body when screwed in then it must be discarded as it it to stretched. the pin is the same as a collared eye bolt where the collar must meet the flat surface or it load the threaded part sideways, if you back off a pin slightly have a feel at how much the pin can rock left and right so it leaves a chance the pin can be spat out and i have personally seen this when i was a chain and rigging certification tech for years. those that taught you to back it off were taught badly themselves and keep handing down that bad information to the next generation. it is not just Crosby that say to leave the pin tight and to think that riggers wont take the advice of those that design make and test these things is beyond me. i have assisted in investigations into injuries and death involving shackles and have just dodged being seriously injured myself when going to check on lifting gear that someone had not looked after correctly. it was hanging only by the edge of what was left of the thread on the pin that was fully disengaged from from the threaded part of the shackle and sitting on the square edge of the stringer plate on a push trolley of a sliding gantry.. i have also had them explode in a testbed when not near their test limit let alone being anywhere near a break load. another really important note with shackles is NEVER swap pins between shackles ALWAYS use them as a matched set with original pin. i would see all the time where places had shackles form different ages and manufacturers and some had metric threads some had imperial and yes the pins will screw in but the holding force is way lower in the thread. another was old shackles with CWT marked on them (really old ones mostly) CWT means "Hundredweight" and i would see people with a 60CWT shackle used alongside 6.5tn ones thinking they are the same rating because they are near the same thickness and pin size. if the customer would not let me remove them i would remark them and i would show them the conversion which is remove the last number and divide the rest by 1/2 and you get a safe working load. so a 60CWT shackle you remove the 0 divide the 6 by 1/2 so 3tn was just under the actual lift rating (3048Kg)
Kyle - if you look at the tag (should be there) on the strap/sling, you’ll see the type of config you’re talking about. But when you look at the load capacity in that config, it drops drastically. I don’t know if -50% is a constant, but it’s way down. Beyond 45°, you’re past the point of gravitational advantage. Past halfway up and halfway down.
Lets say you have a large steel plate thats laying flat. You can blow a hole in it and hook up the shackle. Then to pick it up you would have your sling in one end of the shackle bow which would be well below the 45' mark
would you think a 1" Crosby shackle is over kill for use with my jeep and 10,000 lb winch? I bought one encase I needed to use my snatch block on a heaver load.
Hey Jimmy! In terms of tightening the pin of a shackle, what’s the length you would consider “awhile” when tightening it all the way. What if something will be up for like 24 hours is that long enough to consider tightening it down plus using something to lock the pin down?
What does a cream shackle look like? I don’t think I’ve ever touched one before. I have seen several different size carabiners before, but I wonder if this is completely different?
As you could see in my crane video, I did not have reading of any sort because of the type of thing I was lifting, however this would be extremely helpful for moving heavy your containers.
I really wish my big crane would’ve come with some rigging accessories. That’s pretty much the only draw back to it. However if you want some information about where to get the model comment about it on the crane video and I will post The info for you.
A crane shackle is similar in shape to a horseshoe. However it is made from rounded material and has a removable pin that closes the open end. The pin is threaded and screws in. Hopefully that was an adequate description. If not, let me know and try to give more detail. Thanks for tuning in! 🙂👍
The only reason to turn the shackle pin up is if you do have a endless in bottom (towards the load) because when it tightens up on the load it may roll the pin. Yes you can turn a shackle 90degrees (side ways) it’s called a 90 degree offset and the shackle is good for 50% capacity. Why would you though? No idea... Just like “never saddle a dead horse” well why is that? It has nothing to do with the saddle of the clamp on the dead end, it has everything to do with not putting the bolt-end of the clamp on the live end. So basically it’s to keep your ass from crimping the live end of the cable. “fun fact”
What if you have a shackle and it’s to a tow receiver where it’s fixed solid and your pulling sideways like out of a ditch on the 45° angle. Is that fine or does a shackle need equal load on both sides?
It probably should be loaded in the center of the shackle. But, it's not being used for lifting. So, you will have to use your own judgment. Thanks for watching! 🙂👍
Down here in the south ifyou showed up with something that said global parts aka made in China LOL you'd be laughed outta there.. Because nobody wants to kill someone on the job with faulty equipment 💀
For some reason, about 99% of the crews I work with here consistently call them clevises, maybe it's a regional thing, but in Idaho anyway i am always correcting them. Just to be a smart ass and also because they are NOT clevises.
Novice question. Why don't I see rigging with chains as much as nylon straps? This is heavy machinery and equipment... not trees, so I thought you'd demonstrate with chains.
Hah, I'll be that guy. You said the shackle was designed to be within the 45-degree lines, and you counteract that by saying you "should" back it out even though manufacturer says to tighten all the way. The pin is supposed to be tightened all the way. If you don't have a bar, then smack the fucking shackle on something and it will loosen the pin. Or keep the spud bar on you buddy. If there's any reason you shouldn't do it, it's because of tests, so you should follow the "Best practice". Otherwise, stating that just sets other people up for failure. I don't believe a screw pin shackle will unscrew itself anyways, just stating this for ya.
Bit late to the game here, but I found another video showing strain tests on shackles, which I think illustrates why you don't load from the sides of the shackle. Hope this helps someone: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-66BXmM_JuBI.html
