Different boom lengths - 360 vs Over the rear load charts - BOLD line on a load chart 

I have been looking for the boom extention options explanation everywhere with no luck. I really appreciate your explanation. Great work

HEy Jimmy, I'm an ex-union IRONWORKER and been in the oilfield, played with crane's for the last 20 years. Making my move to operating myself. Thank you for putting things in English where us knuckleheads can relate. Lol

Just getting into operating crane myself been oiling for 3 years this is my first year in my own seat,appreciate the videos I’ve learned a lot!

I have been asking about this. Nobody could explain it. Thank you for elucidating it.

My dad has old videos of my grandfather running his cranes back in the 50s to the 80s. Old pH Pettibone's. There's some shots of him where you could walk under the front of the crane and change the oil he was tipped so much. Lol. But all seriousness. He had the front 3-4 ft in the air. He just knew his cranes. I loved watching them when I was younger. It was movie night and my dad had to set up the projector. I have to get them on DVD or digital some how. I'd live to share them. And really nice video👍

Hi Jimmy. I am getting ready for my NCCCO exams and your channel is a tremendous help in understanding all the details. I am operating heavy knuckle booms and now getting ready to step up to all terrain crane. Thank you for all the effort you put into your channel and explaining it all in detail.

Great video!!! Structural vs tipping!!!!! Like you said, the old rigs damn near never broke!!! Case in point, pulling sheeting with a lattice boom and a vibro. We would pull up on the sheeting until there was 2 feet of air gap UNDER the sprocket on the end of the track and then turn the vibro on which would pull the sheeting up a few feet until the tracks were back on the ground. We would keep doing that until the sheeting would finally come up with the cable,,,,,,

Good info. I see a lot of new operators that don’t really understand the black lines on the load charts. Structural vs stability is an important difference! We have had older operators that ran old P&H neck breakers and lattice boom cranes that had a hard time with LMI’s on new hydraulic cranes stop them from lifting what they thought they could pick.

you are not confusing anyone (i hope) Great information on the larger sections just adding more weight to the chart. Thanks

structural cap, boom angle, and tipping cap . This is also why sometimes a longer boom length gives you a greater cap at a given radius.

very good info on load charts. Glad you took time to explain it. See you on the next one.

Very nice explanation. Love learning new things

Thank you for the explanation, the die cast model was a great idea. You should keep on making these types of videos from time to time or as a regular thing. I enjoyed the explanation on the how and why things are done. But don't stop the job site videos.

Hey Jimmy! Great presentation, you're a wealth of knowledge and explain yourself very well. I find these episodes quite informative and interesting the way you present them. The diecast crane is a great visual aide too. The whiteboard is a fixture (now) that you use it more. Your examples of the straight picks over the rear of the crane make complete sense. I love your passion for safety, your crew, yourself, and your machine. Question for ya: How many hours / years did you train to become qualified to operate since a complex machine? Your stories and experience related comments are very well stated and a joy to hear you talk about. 2 thumbs up from here. Work safe, stay warm. Doug@ the "ranch"

Great video Jimmy! I really liked the beginning explaining how you can get the same length with different section configurations. I never thought to take the weight of the boom into consideration. Don't worry about dumbing it down enough, you did great for us non crane guys. We both have the same handwriting, that's how I was able to read what you wrote. Keep up the great work!! Have a great week!

Very well done Jimmy. I don't think anyone can explain it much better. Are you ever right about the old machines being built stout. They were heavy and one of the reasons those cranes weren't as mobile as cranes today. Thanks for the great explanation.

Great video as always Jimmy. Your explanations are excellent.

Excellent information. We deal with several crane companies and I like to know stuff that they know.

Next video you may want to discuss various counterweight configurations and how they correlate with different boom modes. Thanks for the videos.

This is great man, I've definitely learned somethings tonight.

Honestly I think this was your best video to date!

Very nice explanation Jimmy ! 😊 Without me asking you answered some questions I had ! Knowledge is a great thing and then throw in some common sense and you got a chance ! 😊 I believe these sessions are great and gives us a better idea of what your job entails overall ! Thanks for sharing and take care. 👍 👍

Great video Jimmy! Lots of great information! I really like these kinds of videos

Excellent informative, high thanks Boss👍👍.. learnt something that need to be as a rigger too👍👍

Keep them coming the videos are super helpful, learning evertime I watch a video, still learn test in 3 more days

Big help!! Thank you

Hi Jimmy, great how you explain these examples of boom length and load charts and all the other things you do. Many thanks.

Simplest terms that I can come up with is that the weight of your boom has to be figured into the weight of the pick, due to a crane operating like a very big teeter-toter if you add more weight to the boom end than you have on the counterweight end. (Via having heavier sections of boom further from the fulcrum.) You end up having a bad day. Or if you still have enough counterweight to keep the counterweight side down you could just break the teeter-toter in half.

Great videos very informative

we run a 1993 tadano tr-280xl, and i really do feel everything in the seat.

I understood everything you talked about very good information and explanation. Thank you.

I'm not a smart man but everything you said make all good sense

Clear and simple explanation, Jimmy. Your points about the weight of each boom section and pick capacity was just excellent. Lots of folks don't consider the total weight involved in a pick includes boom sections. Some load charts don't tell you anything about boom weight at different configurations. But, the operator better understand how each boom configuration changes crane capacity. In another video, you might mention that load chart numbers include 15-20% safety factor. That does not mean that it's safe to lift over the chart!

Great knowledge you have done dear sir thanks alot

Very well explained and someone had good questions.

Good video Jimmy well done!!!

That's some good stuff man I never seen one folded up like a taco... LOL but I seen them turn over👍

Dope video

I hadn't seen this video before I asked you my question about sequential boom configurations on your Tadano. (; 🇺🇸

You the man

really good explanation jimmy always love learning new stuff especially about cranes i have always has a fascination with cranes

Thumbs Up if you enjoyed the show, please. I always find your crane vids to be informative to me, even though I have never set foot in one.

Hey Jimmy!, Can you explain what's the difference between mode A and Mode B on a rough terrain crane load chart. How and why should you select which load chart to used

Understood 🤜🤛

Hello Jimmy, Recent subscriber here, been fascinated by cranes for as long as I can remember. I really enjoy your videos, especially these ones where you talk about technicalities of cranes. A question if I may - what's your take on textile crane ropes? Like Samson's K-100?

Can you make a "picture gram" of how the crane extension system works sometime? I had it imagined while watching your other videos that there is one cylinder that locks and unlocks each section, pushes it out, then locks it back into place once it extends. Then it goes back down for another section. The only section that can be half in and out is the one that the cylinder is locked onto. What keeps the boom from just retracting like a tv antenna when you have more than one section half out? Also, thanks for the load chart explanation. The older cranes that I have been around were always overbuilt as all get out, with no electronics. I had an old hand crane operator tell me the same thing when I asked how does he know what the load on the boom was. He said "you can feel it in your butt." I remember thinking that with that method, you might be a little late. When the Liebherr crane that the wind farm east of town was using to erect the upper tower sections broke its boom a couple of years ago everyone marveled about how thin the steel was inside the boom for the weights it was carrying. It's amazing how the engineers have figured out the minimum that we need to lift the same capacity. It's also amazing how a little more wind in the case of that incident can ruin your day in a hurry.

Hello Jimmy. I'm looking over some crane charts in the UK and we don't seem to have yon black line on our lifting charts. Is that something limited to the larger 100t+ cranes or might it just be a difference of specification?

A bit late to the game here, but do you prefer to control the radius with the angle of the boom or the extension of the boom? My intuition says angle because it keeps the most weight closest to the base. Also, can you pick a load with the extension cylinder connected or does the boom have to be pinned? Thanks!

NOT A CRANE OPERATOR, actually I run a 100' Ladder/Fire truck. Not the same but similar in many ways. I watch your videos because you never know what you dont know, till you know it. I wish they would make Ladder rig drivers take a basic crane class. You tube and depending on a computer aided saftey system is the best most get.

Nice education

Good

Ya done good... does your computer automatically chart whatever configuration you establish? Or are there specific charts for specific configurations? Including outriggers? Thank You.. and your jib is stored or stowed? ☺🇺🇸

Yep...Lots of good info! Thanks... Do you have any idea what each of the 5 sections of boom weighs? Be safe and have a great week!

structural capacity vs stability ?

Smash that Thumbs Up button folks

My son is a mechanical engineer, your handwriting looks typewritten compared to his!

How do I tell th computer to sting my boom different ways I don't understand tell me like I'm a ten year old

Do more rigging.

Fold up like a Taco :-) lmao

Comment

ive noticed that the people who i have met that have damaged cranes a and involved in flips have one thing in common? it wasnt thier fault it was the crane lol true story met a dude that was in 2 flips 1 structual break and to this day he is completely in denial that is waa his bad judgment smh (old timer) meanwhile this is the same peron that goes crazy when the slings arent spaced out correctly during a pick lol

When did Seth Rogan start running a crane?