RIGGING QUIZ No. 25

 

GIVEN:

1.      Outrigger Float Diameter = 24.

2.      Boom Is 81 Long.

3.      Total Load (Load Block + Rigging + Pipe) = 14,000 lbs.

4.      Soil Is A Sandy Loam With A Bearing Strength Of 3000 psf (pounds per sq. ft.).

 

 

FIND:

1.       Is the crane positioned far enough away from the shoulder of the excavation?
Case A: Yes_____ No_____ if no, what should D be?_______ft.
Case B: Yes_____ No_____ if no, what should D be?_______ft.

2.       List five things to check for in regards to ground work prior to setting up a crane near a slope.


3.       Is the outrigger blocking area B large enough?
Case A: Yes_____ No_____
Case B: Yes_____ No_____

4.       In general, does the maximum outrigger loading occur at:
A. Minimum radius with minimum boom & maximum load, or _____
B. Extended radius with long boom & capacity load _____

 


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