I'm the guy who would normally be out in the cold and wet working down a hole looking up at the crane driver sleeping in his cab "during a session where lift not required" and swear that in my next life I'm coming back as a crane operator 😅 thanks for a great explanation 👍
Jeff Pratt a friend of mine didn't understand how all that stuff in the boom works. So, I figured what the heck....I'll make a video of it. So, if there's anything special you want to know about or see, I'll try to do the same for you.
To The Top Crane looking forward to the video showing the engine and when you have the trailer on for that out of state job stretching you out like a land train. Do you have Instagram or Facebook accounts. I have worked for 30 years at Kott lumber in Canada and have started a lawn care company to pay for my kids university and college and help with retirement too. I have Instagram and Facebook under fathermowsbest grass Cutting no you tube just don't think anyone would be interested. Take a peek if you get time.
Jeff Pratt I will check it out on Facebook. I don't have Instagram. You are in luck on the engine stuff. I will be performing some maintenance on the crane in a few days. Also, in my intro video, you can see the crane with the dolly (trailer) on the back. However, the footage I got while driving in that video isn't very good. Next time I have the dolly on it, I'll have a camera outside. 😉
Ted John, that was the only way I knew to describe it. A friend of mine (G4 Outdoors) wanted to know how it worked. So, I made a video showing him. Didn't know it was going to be such a hit. 🙂
Duncan MacKenzie, it is pretty sophisticated. However, once a person digs into it and learns why and how everything happens, it becomes easier to understand.
This video is perfect, a while ago I saw a crane setting up just like this, and tried to describe it to other sidewalk engineers and nobody could understand how the extend cylinder had to retract before each section could go out. This video will save me 1000 words , thank you
Good info, I have been around large all terrain cranes at industrial sites but didn’t know the pinning process was so automated. I have a lot of time in RT’s 35 ton and down. They were all full power booms with the longest on a 635 Grove at 104.
Carl williams, they can be extended and retracted in full manual mode too. But, it takes longer. I think Grove and Liebherr have a few good animated videos on UA-cam, that shows what's happening inside the boom during extension and retraction. Thanks for watching! 🙂👍
good video. had to translate it to myself lol. we use Slew in Australia rather than Swing, interesting the Liebherr does "Stick Left is Boom down, Stick Right is Boom Up" - alot of their controls are Away From Chassis >> Towards Chassis. Cant say ive driven many Tadano's hence why I am watching
Excellent narration. I think you might be a teacher and as you said in the past but not the same words as I use “you are always a student”. Additionally you have respect for the equipment. It appears you’re the kind of operator that anyone would want operating there very very expensive equipment it has the capability of additionally doing damage. I’ve watched a few videos and I’m impressed.
I learned something new! We have an ethanol plant that we haul to on a regular basis that uses cranes like that. Never knew how they extended it out. The last big one they had there needed 17 support trucks to haul all of the pieces for it.
The ethanol plant employee heard it cost around $60,000 a day to have it there. They were putting new equipment behind some large tanks and only way there was go over top of them
I thought it was just hydraulic pressure kinda like on a forklift but more complex that is amazing how it can be so precise yet lift tons of weight with a pinky finger Thanks for the amazing videos
jetegtmeier71, there is an animated video of how the pinning system works. I think it may be on the Liebherr channel. It is a great video to watch if you are interested in what happens inside the boom. Thanks for watching! 🙂👍
I want was very close to an operation with Dmag crane setting a 100 ton forging unit at a steel mill. The crane appeared to be new, but when I looked in the cab it had 60,000+ miles on it. They maintained that crane meticulously. I asked one of the workers how often they use that crane and he said that it is used most days of the week. I was surprised to see how many workers travel with the crane to set the counterweight and take care of the unit. Quite interesting. Once the crane unloaded the forging unit outside and put it on a special trailer to go in the building, they brought the crane in the building and put the counterweight on with a bridge crane. They did beautiful work as well with low overhead clearance. Steady, safely and meticulously set that forging unit.
One thing to check is the communication reel retract spring and length indicator. My GMK 5120 spring failed and communication cable jammed inside boom locking up rig for days on a job. Grove has emergency retract hoses external and lock pin removal bolts to release sections. It was out 167 with full jib @ 75° .... Also previous owner didn't change winch gear oil. This oil needs to be changed alot . Otherwise these machines awesome.
james norse, that would be NO good! Especially having to leave it in that configuration. I bet you were glued to the weather forecast. I peek into the inside of the boom pretty frequently. The last thing I want is a rig stuck in the air. Especially if I had all the jib in it. That's a tip height of 330 feet. Thanks for watching! 🙂👍
Hi, Thankyou for your video it has explained a lot. Could you possibly make a video for the top cab of the Tadano and how each of the buttons work and what they do, for example picking up counterweights, how to select the number winch rope falls on the crane computer ect? Thankyou
Great video. Is there a heavy lift procedure where the larger sections come out first such as the #1 and # 2 rather then sending out the smaller sections first?
Thank you... that was actually interesting to watch.. As per, you sending me here from yesterdays, video release. I am still working my way through your collection of videos, one a day!!!! Much of what I asked on another video, you answered here, thank you.. ALthough, my desire to see pictures from the manuals of the booms guts , would ROCK!!! Lol. As I understand this, so far, you can choose any of the boom sections to slide out.... so if all boom sections are collapsed inside one another, sure, it doesn't reach very far, up and or outwards, but that is when the boom is the strongest? and when all the boom sections are completely extended outwards, not as strong as the previous statement? what I am getting at, is extending the boom outer most sections first to lift heavy items, is a better idea, or extending the inner most section going to provide the same amount of lifting strength or prevention of damage to a boom? to define my question further, (sorry, I know my questions are very abstract, and likely odd) but, I example, although a "whatever brand of crane" can reach 900 feet high, but this said crane only needs to extend its boom to 150 feet, BUT... the load is super heavy, not extending the center sections of the boom, and only extending the 2nd section, would allow the frames ability to pic up the heavy load..... Vs, knowing that the load could not be picked up, if every section was extended out and up... I will assume, there is so much more then what you can explain in a UA-cam video, which is why you Katz, go to school for this amazing trade. Maybe, I can ask if this way, does each section have a different strength rating... I would think each section does. I ask this, as the sticker on the side of my little dinky book trucks, have a proportionate rates system, based on the angle, how much of the inner section is extended out. And over the years, seeing other wreckers having been damaged due from lack of training, or know-how, the center section is what always is broken or bent. simple physics, I suppose, as the center section is smaller in its squared diameter, from the outer section? These units you have are a whole other animal, sure they have parts that act of function the same, but, I will also assume, cranes are a whole other animal... thank you, Dru
Awesome video! Question, does only gravity keep the other sections in or are they pinned in place? I've seen videos on the actual cylinder in the boom and it's cool to see exactly what the operator can see going on.
Very nice, I also learned something new. I would have thout what there was some sort of wire and block with a cylinder, inside the boom, like forklifts have. But you showed me :-) Can you use the boom with the "active" or "lose" section not yet pinned at one of its holes? for example at 61%, or do you have to get it pinned not to damage the boom-cylinder during lifts?
Back when I was doing hi-rises in So.Fla, when a tropical storm or hurricane was eminent, the tower crane operators would leave the cranes in ‘weather vane’ mode so the jib was free to swing which ever way the wind would blew to naturally achieve least resistance. Usually they faired pretty well.
Old school was a thimble on the handle, not sure on the correct term of it ,star shaped rotating spindle knob, that would tell the operator when winch cable drum turns, kool nice and hood in your teaching system checks, thanks BigAl California.
i have 2 questions: 1) why do you extend it to 93% instead of 100%? is it due to safety reasons? 2) how is it different with a configuration of say maybe 56%, 56%, 56%, 56%, 56%? Do you have lower permissable load with such configuration? Also, is it safety reasons as well? thanks for the great video
The operator can not tell if the line is moving by watching it. Hence the clicking and winch camera. Much of the time the hook is out of view behind obstacles. This pinning system makes the boom lighter than a traditional hydraulic boom extension system and that translates into a greater hoisting capacity.
Great job explaining everything. Couple questions. Why does it not pin the first two sections at a 100% and pin the 3rd at 79%? You said that every click is about a 1/2" of cable, wouldn't that change as the drum of cable gets spooled out and the diameter of the spool gets smaller?
JOHN HUFNAGEL, the boom sections have holes in them at specific points. Those holes are for the boom pins of the next section. So, it can only pin at those points. You are correct about the clicks. They do vary with how much rope is on the drum and how many parts of line are reeved. Thanks for watching! 🙂👍
in a future video, please explain if there is ever a time when the bottom sections are extended and the top ones are left retracted... load weight vs radius..etc...
I know the Tadano 200G-5 is slightly different in terms of screens, but should it also extend automatically based on selection a boom configuration? Any chance you can explain this operation on the 200G-5? The guy that trained me showed me how to do it manually, but it's confusing to manually lock/unlock the pins and gearbox properly for each section. I don't have any other training or experience on a Tadano, but I thought that it should extend automatically based on selecting a boom configuration, just like this Tadano. Any help is much appreciated. I can't find any instructions in the operation manual, and can't go find any details online🤔
Nice! 😊 Are the joy sticks proportional in movement, or I should say, the more you move the stick the faster the winch, or boom or swing or whatever moves ? I really did wonder how the boom extended, so thanks for that ! Thanks for sharing and take care. 👍
Can you explain what the "tubular steel extension" looking thing is? Looks like an extension but I never see anyone using it when passing crane sites...
Bradford Lunt, the sections can be pinned at 0%, 43%, 95%, 100%. Never had on slip. Actually, it would be impossible. When they pin, a large pin actually gets shoved through a hole in the side of the section below it.
Thanks for the reply. In my trade working as a Marine machinist I always tried to give the crane operator a thumbs up when my piece was landed. Those guys and gals kept me safe and employed for 40 yrs. I'll be honest the riggers on the other hand drove me crazy. LOL
Yeah I had them put so many falls on an air compressor one time that I thought they would rip it in half instead of land it. The best ones I had would listen to me when I would say "in the past we had good luck with ...." But often I would be met with "don't tell me how to rig". I would have to sit back and watch them hang falls I new would tool block before we got the height. Lots of holding my tongue. Your doing a great job on the channel. Hope you get a gozillion subscribers.
@@johndeere5134, the larger diameter one is a hose reel for the hydraulic lifting jib. The smaller one is a wire reel that performs a few functions. It carries the signal from the anti two block, the anemometer, supplies power for the lights on the end of the boom, transfers information to and from the jib. It also measures boom length. Hope that answers your question? If not, I can make a video.
I'm the guy who would normally be out in the cold and wet working down a hole looking up at the crane driver sleeping in his cab "during a session where lift not required" and swear that in my next life I'm coming back as a crane operator 😅 thanks for a great explanation 👍
No need to apologize about the camera, content or length of video. You are doing a great job.
Chris Rowland many, many thanks!
Exactly
Have been watching cranes a long time. Thanks to this video I finally understand how a boom extends. Thanks very much!
Good explanation did not have a clue how it worked .impressive .
Jeff Pratt a friend of mine didn't understand how all that stuff in the boom works. So, I figured what the heck....I'll make a video of it. So, if there's anything special you want to know about or see, I'll try to do the same for you.
To The Top Crane looking forward to the video showing the engine and when you have the trailer on for that out of state job stretching you out like a land train. Do you have Instagram or Facebook accounts. I have worked for 30 years at Kott lumber in Canada and have started a lawn care company to pay for my kids university and college and help with retirement too. I have Instagram and Facebook under fathermowsbest grass Cutting no you tube just don't think anyone would be interested. Take a peek if you get time.
Jeff Pratt I will check it out on Facebook. I don't have Instagram.
You are in luck on the engine stuff. I will be performing some maintenance on the crane in a few days. Also, in my intro video, you can see the crane with the dolly (trailer) on the back. However, the footage I got while driving in that video isn't very good. Next time I have the dolly on it, I'll have a camera outside. 😉
Excellent video to explain how the telescopic boom works from the actual perspective. Been searching for the answer and now i found it. Thanks a lot.
Bronson Yong, thank you, and thanks for watching! 🙂👍
Great videos. You dont need to worry about length because you make it interesting. Thanks for the time you spent showing all this.
George Proctor SR, thank you and thanks for watching! 🙂👍
I can see how these are so expensive. Fascinating info on how that extends. I thought it was all hydraulic, but it’s just one push rod.
G4 Outdoors hopefully the video and info was easy to follow. I didn't know any other way to describe how it works. I figured showing it would be best.
Today I have watched 6 or 7 videos before this one and yours was the only one with a good explanation on how it works. Thanks.
Android Man, thank you! If there's anything else you want to see, I'll try to make a video of it. Thanks for watching! 🙂👍
You explained it well and you can see it moving.
Ted John, that was the only way I knew to describe it. A friend of mine (G4 Outdoors) wanted to know how it worked. So, I made a video showing him. Didn't know it was going to be such a hit. 🙂
That is a pretty sophisticated piece of machinery. Thanks for showing us here in YT land the why's and where fores.
Duncan MacKenzie, it is pretty sophisticated. However, once a person digs into it and learns why and how everything happens, it becomes easier to understand.
This video is perfect, a while ago I saw a crane setting up just like this, and tried to describe it to other sidewalk engineers and nobody could understand how the extend cylinder had to retract before each section could go out. This video will save me 1000 words , thank you
You did a fantastic job explaining it and showing us. I wonder how many more of these I will be watching tonight. It is 12:43 am right now.
walter mattson, thank you and thanks for watching! 🙂
That is really cool how that works! I honestly didn't know how that worked! Thanks for explaining it Jimmy!
What a great teacher, I really enjoyed watching this. I'm glad I found this channel. Thank you my friend.
When I was taking the course for the CCO I thought the boom pinning was actually one of the most interesting parts of the hydraulic crane section.
Great job on explaining everything, not a lot of shaking 👍
Thank you and thanks for watching! 🙂👍
Good info, I have been around large all terrain cranes at industrial sites but didn’t know the pinning process was so automated. I have a lot of time in RT’s 35 ton and down. They were all full power booms with the longest on a 635 Grove at 104.
Carl williams, they can be extended and retracted in full manual mode too. But, it takes longer. I think Grove and Liebherr have a few good animated videos on UA-cam, that shows what's happening inside the boom during extension and retraction. Thanks for watching! 🙂👍
good video. had to translate it to myself lol. we use Slew in Australia rather than Swing, interesting the Liebherr does "Stick Left is Boom down, Stick Right is Boom Up" - alot of their controls are Away From Chassis >> Towards Chassis. Cant say ive driven many Tadano's hence why I am watching
Great video, very informative. I never knew the science behind it until I watched this. Thanks a lot.
Excellent narration. I think you might be a teacher and as you said in the past but not the same words as I use “you are always a student”. Additionally you have respect for the equipment. It appears you’re the kind of operator that anyone would want operating there very very expensive equipment it has the capability of additionally doing damage. I’ve watched a few videos and I’m impressed.
I really appreciate your efforts, thank you
Every days a school day, loved the vid thanks.
Great video😍
Another excellent video, thanks again.
Very cool video. Thanks a lot!
I learned something new! We have an ethanol plant that we haul to on a regular basis that uses cranes like that. Never knew how they extended it out. The last big one they had there needed 17 support trucks to haul all of the pieces for it.
tuba7084, 17 trucks would make for a very large crane!
The ethanol plant employee heard it cost around $60,000 a day to have it there. They were putting new equipment behind some large tanks and only way there was go over top of them
tuba7084, that sounds pretty reasonable for a crane that requires 17 trucks to mobilize. That had to be around a 900 ton capacity or bigger.
The employee said it was the largest wheeled crane around.
tuba7084, does Liebherr LTM 11200 9-1 sound familiar?
Nice explanation, very cool to understand what going on. Best wishes from south Devon in the uk
David Gorringe, thank you! Best wishes to you from Missouri, USA.
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@@ToTheTopCrane jqjnn
You did a good job, I learned somethings. Keep your bubble level!
Jim Posey, thank you, and thanks for watching! 🙂👍
No need to apologize. I like to see how a crane works. Intresting video
I thought it was just hydraulic pressure kinda like on a forklift but more complex that is amazing how it can be so precise yet lift tons of weight with a pinky finger
Thanks for the amazing videos
john leininger, it is a pretty amazing machine. Thanks for watching my videos! 🙂👍
I want to become an operator but I tell you the videos I've seen it's a lot a lot of stuff to take in and learn wow
thank you for this video I've always wondered how. wish I could see how the locks work but beings there internal, well...... great video :)
jetegtmeier71, there is an animated video of how the pinning system works. I think it may be on the Liebherr channel. It is a great video to watch if you are interested in what happens inside the boom. Thanks for watching! 🙂👍
Very nice video thanks for sharing....
Muhammad Asif Younis, thank you! Hope that answered some of your previous question. Thanks for watching! 🙂👍
Great explanation. No need to apologize for the length of the video. People who are interested don’t mind at all.
Thanks so much
🌹🌹🌹🌹🌹🌹
sofiane asir, thank you for watching. 🙂
I want was very close to an operation with Dmag crane setting a 100 ton forging unit at a steel mill. The crane appeared to be new, but when I looked in the cab it had 60,000+ miles on it. They maintained that crane meticulously. I asked one of the workers how often they use that crane and he said that it is used most days of the week. I was surprised to see how many workers travel with the crane to set the counterweight and take care of the unit. Quite interesting. Once the crane unloaded the forging unit outside and put it on a special trailer to go in the building, they brought the crane in the building and put the counterweight on with a bridge crane. They did beautiful work as well with low overhead clearance. Steady, safely and meticulously set that forging unit.
One thing to check is the communication reel retract spring and length indicator. My GMK 5120 spring failed and communication cable jammed inside boom locking up rig for days on a job. Grove has emergency retract hoses external and lock pin removal bolts to release sections. It was out 167 with full jib @ 75° ....
Also previous owner didn't change winch gear oil. This oil needs to be changed alot . Otherwise these machines awesome.
james norse, that would be NO good! Especially having to leave it in that configuration. I bet you were glued to the weather forecast. I peek into the inside of the boom pretty frequently. The last thing I want is a rig stuck in the air. Especially if I had all the jib in it. That's a tip height of 330 feet. Thanks for watching! 🙂👍
Hi, Thankyou for your video it has explained a lot. Could you possibly make a video for the top cab of the Tadano and how each of the buttons work and what they do, for example picking up counterweights, how to select the number winch rope falls on the crane computer ect? Thankyou
very interesting, thank you
Great video. Is there a heavy lift procedure where the larger sections come out first such as the #1 and # 2 rather then sending out the smaller sections first?
Thank you... that was actually interesting to watch.. As per, you sending me here from yesterdays, video release. I am still working my way through your collection of videos, one a day!!!! Much of what I asked on another video, you answered here, thank you.. ALthough, my desire to see pictures from the manuals of the booms guts , would ROCK!!! Lol. As I understand this, so far, you can choose any of the boom sections to slide out.... so if all boom sections are collapsed inside one another, sure, it doesn't reach very far, up and or outwards, but that is when the boom is the strongest? and when all the boom sections are completely extended outwards, not as strong as the previous statement? what I am getting at, is extending the boom outer most sections first to lift heavy items, is a better idea, or extending the inner most section going to provide the same amount of lifting strength or prevention of damage to a boom? to define my question further, (sorry, I know my questions are very abstract, and likely odd) but, I example, although a "whatever brand of crane" can reach 900 feet high, but this said crane only needs to extend its boom to 150 feet, BUT... the load is super heavy, not extending the center sections of the boom, and only extending the 2nd section, would allow the frames ability to pic up the heavy load..... Vs, knowing that the load could not be picked up, if every section was extended out and up... I will assume, there is so much more then what you can explain in a UA-cam video, which is why you Katz, go to school for this amazing trade. Maybe, I can ask if this way, does each section have a different strength rating... I would think each section does. I ask this, as the sticker on the side of my little dinky book trucks, have a proportionate rates system, based on the angle, how much of the inner section is extended out. And over the years, seeing other wreckers having been damaged due from lack of training, or know-how, the center section is what always is broken or bent. simple physics, I suppose, as the center section is smaller in its squared diameter, from the outer section? These units you have are a whole other animal, sure they have parts that act of function the same, but, I will also assume, cranes are a whole other animal... thank you, Dru
Dru, how about if I make a video for you? That might be easier than trying to type it all. Thanks for watching! 🙂👍
Thank u sir
Awesome video! Question, does only gravity keep the other sections in or are they pinned in place? I've seen videos on the actual cylinder in the boom and it's cool to see exactly what the operator can see going on.
Kevin Meyer, when the boom is retracted, the sections are pinned. Thanks for watching! 🙂👍
Very nice, I also learned something new. I would have thout what there was some sort of wire and block with a cylinder, inside the boom, like forklifts have. But you showed me :-) Can you use the boom with the "active" or "lose" section not yet pinned at one of its holes? for example at 61%, or do you have to get it pinned not to damage the boom-cylinder during lifts?
exeqt, it can be operated with a section only pinned to the telescope cylinder. However, capacity is reduced. Thanks for watching! 🙂
The swing brake was a surprise to me. I didn’t know that those would rotate freely.
02pwrstrk some cranes don't rotate freely. Just depends on manufacturer and model.
Back when I was doing hi-rises in So.Fla, when a tropical storm or hurricane was eminent, the tower crane operators would leave the cranes in ‘weather vane’ mode so the jib was free to swing which ever way the wind would blew to naturally achieve least resistance. Usually they faired pretty well.
Gooo
Does the winch automatically extend when the boom extends? This is such an educational video. Thank u!
Good morning crane
Old school was a thimble on the handle, not sure on the correct term of it ,star shaped rotating spindle knob, that would tell the operator when winch cable drum turns, kool nice and hood in your teaching system checks, thanks BigAl California.
i have 2 questions:
1) why do you extend it to 93% instead of 100%? is it due to safety reasons?
2) how is it different with a configuration of say maybe 56%, 56%, 56%, 56%, 56%? Do you have lower permissable load with such configuration? Also, is it safety reasons as well?
thanks for the great video
The operator can not tell if the line is moving by watching it. Hence the clicking and winch camera. Much of the time the hook is out of view behind obstacles.
This pinning system makes the boom lighter than a traditional hydraulic boom extension system and that translates into a greater hoisting capacity.
Don't forget the boom is a lot weaker. Do not overload. Equally extending boom are stronger until extended to the max.
Great job explaining everything. Couple questions. Why does it not pin the first two sections at a 100% and pin the 3rd at 79%?
You said that every click is about a 1/2" of cable, wouldn't that change as the drum of cable gets spooled out and the diameter of the spool gets smaller?
JOHN HUFNAGEL, the boom sections have holes in them at specific points. Those holes are for the boom pins of the next section. So, it can only pin at those points. You are correct about the clicks. They do vary with how much rope is on the drum and how many parts of line are reeved. Thanks for watching! 🙂👍
in a future video, please explain if there is ever a time when the bottom sections are extended and the top ones are left retracted... load weight vs radius..etc...
Michael Owen, will do! But, I'll spoil it for ya....there is a time when the small sections are retracted inside of the extended big sections.
Have you done a video on emergency scoping ? Mainly on the lock and unlock of the cylinder and boom..
can telescopic boom be extended with load is it allowed ??
I know the Tadano 200G-5 is slightly different in terms of screens, but should it also extend automatically based on selection a boom configuration? Any chance you can explain this operation on the 200G-5? The guy that trained me showed me how to do it manually, but it's confusing to manually lock/unlock the pins and gearbox properly for each section. I don't have any other training or experience on a Tadano, but I thought that it should extend automatically based on selecting a boom configuration, just like this Tadano. Any help is much appreciated. I can't find any instructions in the operation manual, and can't go find any details online🤔
Nice! 😊
Are the joy sticks proportional in movement, or I should say, the more you move the stick the faster the winch, or boom or swing or whatever moves ?
I really did wonder how the boom extended, so thanks for that !
Thanks for sharing and take care. 👍
Ken Gamble, the controls are indeed proportional. The more input, the faster the function speed. Thanks for watching.
To The Top Crane
Thanks !
So, what is the best angle should the boom be when extending it?
Can you explain what the "tubular steel extension" looking thing is? Looks like an extension but I never see anyone using it when passing crane sites...
Is it possible to reeve more than one part of cable on rear winch ? Can you reeve 2 parts of line on jib ? / what is max capacity for jib?
Good evening
If you haven’t done so in the past, please tell us what training you had to go through to be an operator of this piece of equipment.
Good morning
Hey brother at what boom angle does she like to operate properly, I think it’s around 75??
👍
Doug Smith, thank you, and as always, thanks for watching! 🙂👍
So how long does it take to extend fully.
So in metric your main drum has a line pull of just under 7.6 tonne.
Can the sections be pinned at any point along their length? Have you ever had a section slip? Thanks for the great explanation.
Bradford Lunt, the sections can be pinned at 0%, 43%, 95%, 100%. Never had on slip. Actually, it would be impossible. When they pin, a large pin actually gets shoved through a hole in the side of the section below it.
Thanks for the reply. In my trade working as a Marine machinist I always tried to give the crane operator a thumbs up when my piece was landed. Those guys and gals kept me safe and employed for 40 yrs. I'll be honest the riggers on the other hand drove me crazy. LOL
Bradford Lunt, I sometimes have riggers that drive me crazy too. I've had some that thought they had to use every piece of rigging in the box. Lol
Yeah I had them put so many falls on an air compressor one time that I thought they would rip it in half instead of land it. The best ones I had would listen to me when I would say "in the past we had good luck with ...." But often I would be met with "don't tell me how to rig". I would have to sit back and watch them hang falls I new would tool block before we got the height. Lots of holding my tongue. Your doing a great job on the channel. Hope you get a gozillion subscribers.
Bradford Lunt, thank you! I'm doing the best I can with my limited computer skills. Lol
what are the winches in the boom for
brandon cook, which ones? The one's that I have a camera for, or the reels on the side of the boom? Thanks for watching! 🙂👍
@@ToTheTopCrane the ones on the side of the boom
@@johndeere5134, the larger diameter one is a hose reel for the hydraulic lifting jib. The smaller one is a wire reel that performs a few functions. It carries the signal from the anti two block, the anemometer, supplies power for the lights on the end of the boom, transfers information to and from the jib. It also measures boom length. Hope that answers your question? If not, I can make a video.
Here's a video of the innards of a GMK telescoping boom that shows the pins and extension ram in action:
ua-cam.com/video/zUPEVxLeSmo/v-deo.html
Chris F, I've seen that video. It is a good one. The engineering involved in these cranes is mind boggling. Thanks for sharing that link. 🙂
Good morning