Screw drivers and adjustable wrenches may work, but you overlooked the third option, the clevis wrench. It's an open loop on the end of a bar that fits over the flat part of the clevis pin.
I needed some shackles and went to my plants storeroom and found some that didn’t look right. After inspecting them I saw NOT FOR OVERHEAD LIFT stamped on them. They looked like galvanized Chinese junk. I educated them and had them stop supplying them and go with a name brand shackle.
Great case study for the importance of inspections! Hopefully, you taught your riggers to also inspect the shackles before they use them as well; that way, they can catch things like that before accidents happen. If you are ever in need of shackles or other rigging, you can always shop here: shop.mazzellacompanies.com/
We are not allowed to rig to forks on a fork lift. We have to use the fork lift adapter that slips on the forks and has a hook. I’m guessing because the forks have a sharp edge? But we can’t even using softeners. Or maybe it’s because you could side load the fork and it could come off. Not sure. I wish we could do it it’s actually really handy. Especially when lifting some long you can rig to each fork and the load always tries to stay parallel with the mast and won’t spin.
I understand that a open load hook can be saftied by using tape to prevent the sling or other rigging from falling off the hook i slack occurs. This would be done when the latch spring failed in the middle of a job or some other unexpected event, obviously a pain but I've done it, and always keep a roll of tape in my 35 ton boom truck. Shackles: why does everyone constantly call them clevises?! Maybe it's a regional thing but here in Idaho that's what many call them, drives me crazy!
Several wraps of wire in a figure eight around the shank and the tip of the hook is much safer than using tape. If I found someone tapping a hook, I would bring it to the attention of the safety person, ask to work on a different crew, or find another safer job. Take time to be safe and see your family at the end of the day, every day.
Yeah. Insurance statistics on costs for each occurrence and the frequency of occurrences. I prefer to also consider the probability & severity for me. When I see the boss wear a harness, I will attach my harness to something. Stay Safe. Thank you. Granddad had no winch truck or explosive trainings. Never lost a body part and lived a regular life span. Great stories, too. Today, it is required the ladder warn me not to expect the tool to work the same on frozen water the same way it performs on an appropriate surface. YIKES!!! If a hook needed a latch - we made one and used it.
Inverted hoists are lighter to rig. Inverted hoist can be rigged inside the truss to be raised, saving a couple of feet headroom. In gig lighting there are almost always cables where an inverted hoist will be, and rarely at the rigging point.
Respectfully disagree on the shackle tightening. If you are breaking shackles due to the lost capacity of backing the bolt off a quarter turn, you’re using the wrong shackles in the first place. If you have a shackle rigging that is going to be used over and over and not undone after each pick, sure, go ahead and tighten it 100%. Go the extra step and tie wire the ring of the bolt to the bow for some additional insurance. If the shackle is being done and undone on each pick and it is an acceptably rated shackle for the task, it makes sense to back it off.
As an operator i hate seeing people back off shackles. Unless im working with small children or women i tell men to crank it by hand. Only way a shackle gets tighter is if it used wrong.
@@ryanburbridge As an operator, someone who has constant exposure to riggings like this, I’d be willing to bet you’ve never seen or even heard of a failure or accident, due to backing the pin off by a quarter turn.
It only matters on the big shackles. A 3/4 inch shackle doesn't need to be backed off. But a 35 ton shackle used on a 100 ton lift can tighten to the point where it can't be unscrewed with a hand tool like a spud wrench. There's no rule of thumb about an1/8 th turn or the like.
You have to be careful. Some import shackles that you buy from Home Depot or Harbor Freight will be stamped "Not For Overhead Lifting." Always inspect your shackles before use. If you buy name-brand shackles, you can count on them being for overhead lifting unless specifically marked otherwise. Great question. We'll cover this in a future video!
Not all shackle pins are tight against the shackle ear. No requirement to snug a bolt-type shackle with a wrench. Drop in the cotter pin and the nut has some freeplay. Crosby lock collar pins - same thing. Snugging up a screw pin shackle pin is to make the rules easy and repeatable. Gives some resistance to pin backing out. Overall safety can suffer with needing wrenches to remove shackle pins. Working efficient is always safest. Less work, less chance for dropped objects - always good. A tight screw pin moves more when taking load because usually the shoulder end will center in the ear when tightened. Then when taking load, the shoulder end will be pulled down against the bottom of the bore in the ear. Either way though, the shackle doesn't care. In the end, it is easy to see why some manufacturers say what they say about tightening screw pins. Liability. It is also understandable why riggers back off screw pins. That is my take as an engineer and someone working in the field with riggers every day. Rigging is a high liability job with many chances to hurt yourself or others.
I always see riggers at my place of work walking under a load when its still over their heads, reaching straight up to contact it as it comes down. How dumb is that? Why did they not wait until they can reach straight out horizontally to contact the load? Load size and weight are irrelevant at this point. Some have tag lines as well. Why not reach out with a shepherds hook so to speak to grab the tag line. That way they stay out from under the load.
Very tricky part of rigging. Although technically you are not supposed to touch the load using your hands, anyone involved in rigging knows that this is necessary, and sometimes you do not have no-touch tools to maneuver it. This all comes down to training though. Never stand under a load, don't handle the load until you absolutely need to, and not when it is above your head. Use taglines whenever possible. Thanks for the comment!
Where I work that is a rules to live by violation. We call them rules to get fired by. If you walk under a suspended load you will be terminated immediately no question. Don’t ever do that. We are allowed to reach under a suspended load to modify rigging for brief periods but that’s the only exception. It’s not worth your life or job.
Great ones! Here is an answer to your pin-up or down question. th-cam.com/video/F2WdmxcbhX4/w-d-xo.html I will also add "Two Shackles in a Series" to the list. That is a great myth to tackle.
i always have a small adjustable wrench in my pocket at work and home. it comes in super handy. at work i have 2 small , crescent brand . love em and hello Henry from another buffalonian
Backing off a shackle only applies to big shackles. They can tighten up on a hundred ton lift to the point where a hand tool cant unscrew them. But i have to laugh when i see a carpenter back off a 5/8" shackle, choking a 500lb bundle of 2x4's.
Great video. Thanks for the information.
Screw drivers and adjustable wrenches may work, but you overlooked the third option, the clevis wrench. It's an open loop on the end of a bar that fits over the flat part of the clevis pin.
Great tip! Thank you!
I needed some shackles and went to my plants storeroom and found some that didn’t look right. After inspecting them I saw NOT FOR OVERHEAD LIFT stamped on them. They looked like galvanized Chinese junk. I educated them and had them stop supplying them and go with a name brand shackle.
Great case study for the importance of inspections! Hopefully, you taught your riggers to also inspect the shackles before they use them as well; that way, they can catch things like that before accidents happen. If you are ever in need of shackles or other rigging, you can always shop here: shop.mazzellacompanies.com/
There is a reason why a Crosby costs so much
We are not allowed to rig to forks on a fork lift. We have to use the fork lift adapter that slips on the forks and has a hook. I’m guessing because the forks have a sharp edge? But we can’t even using softeners. Or maybe it’s because you could side load the fork and it could come off. Not sure. I wish we could do it it’s actually really handy. Especially when lifting some long you can rig to each fork and the load always tries to stay parallel with the mast and won’t spin.
I understand that a open load hook can be saftied by using tape to prevent the sling or other rigging from falling off the hook i slack occurs. This would be done when the latch spring failed in the middle of a job or some other unexpected event, obviously a pain but I've done it, and always keep a roll of tape in my 35 ton boom truck. Shackles: why does everyone constantly call them clevises?! Maybe it's a regional thing but here in Idaho that's what many call them, drives me crazy!
Several wraps of wire in a figure eight around the shank and the tip of the hook is much safer than using tape. If I found someone tapping a hook, I would bring it to the attention of the safety person, ask to work on a different crew, or find another safer job. Take time to be safe and see your family at the end of the day, every day.
Both methods are safe is done properly.
Where I work we can’t choke a hook back on itself when using any kind of chain hoist. Such as a come along or chain fall. Myth?
Yeah. Insurance statistics on costs for each occurrence and the frequency of occurrences. I prefer to also consider the probability & severity for me. When I see the boss wear a harness, I will attach my harness to something. Stay Safe. Thank you. Granddad had no winch truck or explosive trainings. Never lost a body part and lived a regular life span. Great stories, too. Today, it is required the ladder warn me not to expect the tool to work the same on frozen water the same way it performs on an appropriate surface. YIKES!!! If a hook needed a latch - we made one and used it.
Thanks for sharing, John. A culture of safety is important.
Inverted hoists are lighter to rig.
Inverted hoist can be rigged inside the truss to be raised, saving a couple of feet headroom.
In gig lighting there are almost always cables where an inverted hoist will be, and rarely at the rigging point.
Great insight! Thanks for commenting.
Respectfully disagree on the shackle tightening. If you are breaking shackles due to the lost capacity of backing the bolt off a quarter turn, you’re using the wrong shackles in the first place.
If you have a shackle rigging that is going to be used over and over and not undone after each pick, sure, go ahead and tighten it 100%. Go the extra step and tie wire the ring of the bolt to the bow for some additional insurance.
If the shackle is being done and undone on each pick and it is an acceptably rated shackle for the task, it makes sense to back it off.
If it makes sense to break the law, go ahead.
As an operator i hate seeing people back off shackles. Unless im working with small children or women i tell men to crank it by hand. Only way a shackle gets tighter is if it used wrong.
@@ryanburbridge As an operator, someone who has constant exposure to riggings like this, I’d be willing to bet you’ve never seen or even heard of a failure or accident, due to backing the pin off by a quarter turn.
It only matters on the big shackles. A 3/4 inch shackle doesn't need to be backed off. But a 35 ton shackle used on a 100 ton lift can tighten to the point where it can't be unscrewed with a hand tool like a spud wrench. There's no rule of thumb about an1/8 th turn or the like.
Amazing 👍 do more videos like this ...
Thank you. All good information.
Thanks
Outstanding❤❤❤❤❤
Is there overhead rated and non-overhead rated screw shackles?
You have to be careful. Some import shackles that you buy from Home Depot or Harbor Freight will be stamped "Not For Overhead Lifting." Always inspect your shackles before use. If you buy name-brand shackles, you can count on them being for overhead lifting unless specifically marked otherwise. Great question. We'll cover this in a future video!
all powered hoist have to have a anti two block. true or false
Not all shackle pins are tight against the shackle ear. No requirement to snug a bolt-type shackle with a wrench. Drop in the cotter pin and the nut has some freeplay. Crosby lock collar pins - same thing. Snugging up a screw pin shackle pin is to make the rules easy and repeatable. Gives some resistance to pin backing out. Overall safety can suffer with needing wrenches to remove shackle pins. Working efficient is always safest. Less work, less chance for dropped objects - always good. A tight screw pin moves more when taking load because usually the shoulder end will center in the ear when tightened. Then when taking load, the shoulder end will be pulled down against the bottom of the bore in the ear. Either way though, the shackle doesn't care. In the end, it is easy to see why some manufacturers say what they say about tightening screw pins. Liability. It is also understandable why riggers back off screw pins. That is my take as an engineer and someone working in the field with riggers every day. Rigging is a high liability job with many chances to hurt yourself or others.
I always see riggers at my place of work walking under a load when its still over their heads, reaching straight up to contact it as it comes down. How dumb is that? Why did they not wait until they can reach straight out horizontally to contact the load? Load size and weight are irrelevant at this point. Some have tag lines as well. Why not reach out with a shepherds hook so to speak to grab the tag line. That way they stay out from under the load.
Very tricky part of rigging. Although technically you are not supposed to touch the load using your hands, anyone involved in rigging knows that this is necessary, and sometimes you do not have no-touch tools to maneuver it. This all comes down to training though. Never stand under a load, don't handle the load until you absolutely need to, and not when it is above your head. Use taglines whenever possible. Thanks for the comment!
Where I work that is a rules to live by violation. We call them rules to get fired by. If you walk under a suspended load you will be terminated immediately no question. Don’t ever do that. We are allowed to reach under a suspended load to modify rigging for brief periods but that’s the only exception. It’s not worth your life or job.
Love it!
Shackles: bell up or bell down? Also, two shackles in series ok?
Great ones! Here is an answer to your pin-up or down question. th-cam.com/video/F2WdmxcbhX4/w-d-xo.html
I will also add "Two Shackles in a Series" to the list. That is a great myth to tackle.
the myth your not allowed to hook two hooks together!
We are not allowed to go hook to hook where I work. It’s in our procedure that we can’t do it. Not sure if it’s from OSHA or what. Always wondered.
i always have a small adjustable wrench in my pocket at work and home. it comes in super handy. at work i have 2 small , crescent brand . love em and hello Henry from another buffalonian
Myth 9 I can make the ball disappear.
A screw driver???????
Backing off a shackle only applies to big shackles. They can tighten up on a hundred ton lift to the point where a hand tool cant unscrew them. But i have to laugh when i see a carpenter back off a 5/8" shackle, choking a 500lb bundle of 2x4's.
Thanks