Grove TLL Teleboom Net Capacity Extra Line Deduction

Example of a Grove TLL (large telescopic boom swing cab) problem with deduction for excess wire rope.

[@billwyrick1988]

Thanks for videos,very helpful last weekend

[@christophermontesano5096]

Thank you man !!!! Seriously

[@arthurlewis5198]

I really appreciate you ❤

[@pistoncount]

TY

[@ghulabkhan762]

Good morning

[@gulabk65]

Right

[@Steveo979]

Never mind, cause lifting off the block and not the ball

[@tthomas7909]

We ND more swing cab videos

[@LoadChartLab]

Grove is a swing cab. You wanting National / Link Belt? I might try to work some up. Something to think about--you can take any of the swing cab specialty exams to get your TLL certification. Even if you only run National you can take the grove swing cab test for your cert. Time is my problem. This is not my real job and the pay (nothing) sucks, lol. This was originally going to be just for the Grove and Manitowoc LBC--the two tests I recommend for operators needing the TLL or LBC certs. I added Manitex because of requests. Study the load charts and load chart notes (load charts can be found on CCO web site wwww.nccco.org/nccco/certifications/mobile-crane-operator/written-exam/load-charts), the process is going to be the same for the swing cab but rules for deductions will be different--may be some additional "quirks" in the notes. There may be some other videos on KZbin for the swing cab. If you have time you might also consider a test-prep workshop. They may teach a different method for the load chart problems but it will probably work for finding net capacity and gross load. Good luck with your test.

[@MitzvosGolem1]

erected retracted at what offset angle 0° or 45° makes a difference on cg ?!!!

[@LoadChartLab]

Doesn't matter if you are picking off the main. The deduction weight for the jib is the same-6368 lbs. For this problem you use the main boom chart at a radius of 20' and boom length 60 ft. If picking off the jib you are correct, and that information would be in the problem.

[@MitzvosGolem1]

Load Chart Lab My long belt has 0° to 45° offset which cg of jib moves away from cl of rotation at 0° several feet more load radius than at 45° . These Groves often have the same offset jibs . Maybe this machine doesn't? Picking off main boom ...not jib that is in chart .

[@LoadChartLab]

I'm guessing you mean Link Belt, rough terrain. If so that's a whole different animal. The charts, load chart notes, counterweights etc. are different. This is a simple problem designed as a practice problem for those taking the NCCCO Grove TLL specialty exam.

[@MitzvosGolem1]

Load Chart Lab Ok thanks

[@tonytorres1624]

Sir can you help me,I was told that I have to deduce the weight for the other 3 part of line,Can you explained me,my mistake.

[@LoadChartLab]

You don't reduce the weight you deduct the weight of the parts of line not needed to make the lift. The chart capacity for this configuration is 33,900. One part of line has a 12,920 pound capacity. You only need 3 parts line to for lifting a load up to the gross capacity so you have to deduct the weight of the 3 parts not needed (you started with 6 parts, only need 3, leaving three you don't need). Watch through the video a few times to see if it starts to make sense. Also watch some of the other Grove videos. I hope this helps.

[@jeffderusseau1425]

Isn’t the weight of line not used 280 pounds. 70 feet divided by .75×1 (lb) x 3 (lines)=280

[@LoadChartLab]

Where are you getting the .75? It is 3/4 inch line that weighs one pound per foot. The 3/4 (.75) is not part of the excess line, weight calculation. Three parts line x 70 feet x 1 lb per foot = 210.

[@Steveo979]

Wouldn't you go off the job chart?