Using the Grove Range Diagram 

Good to hear Junior. I'm glad it helped.

This may be too late to help you. I do not have any videos on ground pressure. It is an important concept that can show up on exam. Know which entities are responsible for ground conditions and methods for mitigating poor ground conditions--e.g. cribbing. You will probably will not need to calculate ground pressure. But if you do the formula is P=F/A where F is the weight of the crane and load and A is the contact are of the crane (where the crane contacts the supporting surface). These values are often expressed in PSA (pounds per square inch) so contact area should be in inches. But if you are asked For PSF the area would be in feet.

Hello Gary. Sorry for the late reply. Telescopic boom forklifts should have a chart that is very similar to a range diagram. The chart will be from the manufacturer for specific makes/models of machines. It will show the lift capacity at different angles, heights and reach distance. Check out this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3ANQ3HCCWpo.html

My understanding on using load charts is that if your numbers fall between two chart numbers you use the one that creates more restriction. Since this exercise is finding out how much to deduct for the wire rope the larger number is used because there is more wire rope being used. If the rope being used is 2 pounds per foot the difference is 20 pounds on your load calculation between 100 and 110 feet of tip height. Same goes for boom telescoping, if you are between chart values, use the larger (longer) value.

Thank you sir.

Similar, but not the same. Sorry I don't have link belt.

@@LoadChartLab i mean but when I’m between hight in feet u go to the higher number correct?

@@juniorarciniega8694 yes same rules apply.

@@LoadChartLab thank you sir 🙏

@@LoadChartLab I passed thanks for the advice

I would need to see the range diagram, in meters.

Yes. Sorry for late reply. I've been teaching a class all week and haven't checked my youtube messages.

Boom angle you always go down to the next lowest--it's a manufacturer thing. Do this it will help get you the right answer on the test--LOL

Yea, pretty common. Also can show up on the core.

Some of best operators I know had to take it 2 or 3 times. Hang in there. Know the regs and practice to build your speed on load chart problems.

Load Chart Lab thanks man just calculating the wire rope screws me up every time

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