Frozt 27, if you are using boom angle to find chart capacity and are given an angle not listed in the chart , look at the capacity for the next highest boom angle and the capacity for next lowest boom angle and use the lower capacity. For example you are trying to find capacity with 100 feet of boom at a 50 degree boom a angle. The chart does not have a capacity for 50 degrees but it does for 48 degrees and 52 degrees. The capacity at 48 is 20,000 lbs., capacity at 52 degrees is 23,000 lbs. Your chart capacity is 20,000 lbs. Compare capacity for higher and lower angles, use lower capacity. Usually the lower angle will have lower capacity. Hope this answers your question. If not let me know.
Frost 27, the numbers in the example are not actually from the grove chart. I just made them up to illustrate the process when boom angle is not in the chart
Joe. Glad they videos are helping. I may eventually do some fixed cab examples but its really not my area--when my work slows down a little I'll look into it.
I have a question about the upper boom point never being a deduction on the manitowoc crane you are using. What model is it and is that specific to it. Thanks Mike
Hello Mike. This statement only applies to the Manitowoc lattice boom crawler on the CCO specialty exams. There is no deduction for the upper boom point on the CCO LBC specialty exam. Otherwise it depends on the model of crane and the carrier. It will be different for different cranes, different setup (for example, 4100 does require an upper boom point deduction). When putting together a "real" lift plan always check the load charts, notes and other documentation. Also, if you or anyone else is taking the CCO specialty for lattice boom truck, there is a deduction for the upper boom point. The load charts used for CCO exams do not identify a specific model, but the numbers they give you in the chart for the exam, are pretty much a identical to a Manitowoc 888.
Don't know if this helps, but the auxiliary and main wire rope for the Grove TLL is the same rope-- same construction and for the purpose of CCO exam its weight is 1 pound per foot. If you are picking off the extension with the auxiliary (it would be a single part line) and you have 10 feet hanging off the main boom, you would not have a deduction for the single part you're using but would deduct the weight of the rope hanging off the main boom. Lets say you have four parts hanging off the main, 10 feet, the deduction would be 10 (feet hanging) times 4 (number of parts) times 1 (pounds per foot) and would be 40 pounds.
Good deal. I'm not always able to respond very quickly but if you have any questions let me know. If you need to retake I would recommend doing it as soon as possible.
Using the range diagram the with a boom length of 70 and radius of 30 the tip to ground distance is 70 feet. It's where the 70" boom arc and 30 foot radius line intersect. The scale on left is tip to ground distance, on the right is boom length. I'm guessing you're looking at the 60 on the right of the range diagram?
@@LoadChartLab Yes, thanks for clearing that up! I'm taking my mobile crane test this Friday so I'll be studying your videos until then. Thanks for posting them!
Gross load is weight of object plus deductions. Net Capacity is gross capacity (Chart or line pull whichever is less) minus deductions. You are correct.
Just pass my tests man thanks for all your help very helpful 👍
This video was very helpful, thanks!
Thanks so video nice good job
Very helpful
Frozt 27, if you are using boom angle to find chart capacity and are given an angle not listed in the chart , look at the capacity for the next highest boom angle and the capacity for next lowest boom angle and use the lower capacity. For example you are trying to find capacity with 100 feet of boom at a 50 degree boom a angle. The chart does not have a capacity for 50 degrees but it does for 48 degrees and 52 degrees. The capacity at 48 is 20,000 lbs., capacity at 52 degrees is 23,000 lbs. Your chart capacity is 20,000 lbs. Compare capacity for higher and lower angles, use lower capacity. Usually the lower angle will have lower capacity. Hope this answers your question. If not let me know.
Thanks man now I get it if is in between values use the longest.
I pass the core and the small I have problems with the large load chart
Frost 27, the numbers in the example are not actually from the grove chart. I just made them up to illustrate the process when boom angle is not in the chart
leberer1055crean.lodcart
Thanks for the help!!! Could you do some videos for a fixed cab
Joe. Glad they videos are helping. I may eventually do some fixed cab examples but its really not my area--when my work slows down a little I'll look into it.
I have a question about the upper boom point never being a deduction on the manitowoc crane you are using. What model is it and is that specific to it.
Thanks
Mike
Hello Mike. This statement only applies to the Manitowoc lattice boom crawler on the CCO specialty exams. There is no deduction for the upper boom point on the CCO LBC specialty exam. Otherwise it depends on the model of crane and the carrier. It will be different for different cranes, different setup (for example, 4100 does require an upper boom point deduction). When putting together a "real" lift plan always check the load charts, notes and other documentation. Also, if you or anyone else is taking the CCO specialty for lattice boom truck, there is a deduction for the upper boom point. The load charts used for CCO exams do not identify a specific model, but the numbers they give you in the chart for the exam, are pretty much a identical to a Manitowoc 888.
Had a question about tip height. 70 foot boom and 30 foot radius equals 70 ft tip height.
This is for ghe grove tll
It's actually 80 ft
@@mitchsmithers1760 How do you get 80? With 70 feet of boom and 30 foot radius?
I'm retaking in January
Im having trouble with gross capacity with just a degree angle the fall in between values can you help me
plz get the lowest
What do I do if they ask for main rope and aux rope
Can you give me a little more information? If you could send me the question that would be great.
I took my grove test and I had difficulty with deductions when they ask for main and aux rope lifting off of boom
Don't know if this helps, but the auxiliary and main wire rope for the Grove TLL is the same rope-- same construction and for the purpose of CCO exam its weight is 1 pound per foot. If you are picking off the extension with the auxiliary (it would be a single part line) and you have 10 feet hanging off the main boom, you would not have a deduction for the single part you're using but would deduct the weight of the rope hanging off the main boom. Lets say you have four parts hanging off the main, 10 feet, the deduction would be 10 (feet hanging) times 4 (number of parts) times 1 (pounds per foot) and would be 40 pounds.
Thank you very much.i know we're I went wrong on the test
Good deal. I'm not always able to respond very quickly but if you have any questions let me know. If you need to retake I would recommend doing it as soon as possible.
At 7:00 why did you stop at 60 ft of boom and go over instead of 70ft?
Using the range diagram the with a boom length of 70 and radius of 30 the tip to ground distance is 70 feet. It's where the 70" boom arc and 30 foot radius line intersect. The scale on left is tip to ground distance, on the right is boom length. I'm guessing you're looking at the 60 on the right of the range diagram?
@@LoadChartLab Yes, thanks for clearing that up! I'm taking my mobile crane test this Friday so I'll be studying your videos until then. Thanks for posting them!
@@NUCKINGfuts124 good luck on the exams.
Gross load is plus deductions net is minus deductions
Yes.
Gross load is weight of object plus deductions. Net Capacity is gross capacity (Chart or line pull whichever is less) minus deductions. You are correct.
Lot guys confuse gross load with gross capacity. Not the same thing.
Load Chart Lab I just figured it out today thanks for posting these videos
Hi I need your lattic practice test
Hello Jeremy. They are available for purchase on Amazon. Go to Amazon search for Load Chart Laboratory.
Did you ever come up with some core test material sir
@@jeremysisk1489 I do have some core, practice questions. Send me your email address and I'll send it to you.