Module Thirteen - Intermediate Rigging - NCCER Substation Slides

Module Thirteen - Intermediate Rigging - NCCER Substation Slides

1. Intermediate Rigging Module Thirteen – 38201 -11

2. Objectives Describe the basic requirements to lift personnel. Explain how a sling stress is determined. Describe the basic elements of a lift plan. Explain the purpose of a load chart. Calculate and explain how the center of gravity is determined. Given a particular load, select the appropriate sling(s) for a lift. Describe how jacks, hoists, skids, and rollers are used to move a load laterally. Upon completion of this module, you will be able to do the following:

3. Performance Tasks Given a particular load, select the appropriate sling(s) for a lift. Calculate and explain how the center of gravity is determined. Under the supervision of the instructor, you should be able to do the following:

4. Figure 1 – Crane requirements for personnel platforms

5. Figure 2 – Crane requirements for suspended personnel platforms

6. Figure 3 – Suspended personnel platform

7. Figure 4 – Bridle sling using a master link

8. Figure 5 – Bridle sling using a shackle

9. Figure 6 – Sling measurement

10. Figure 7 – Sling angle factors

11. Figure 8 – Example of a sling capacity chart

12. Figure 9 – Bridle hitch arrangement

13. Figure 10 – Asymmetrical bridle sling stress arrangement and formula

14. Figure 11 – Choker hitch arrangement

15. Figure 12 – Choker hitch derating factors

16. Figure 13 – Industrial hydraulic crane with rotating boom

17. Figure 14 – Rough-terrain crane

18. Figure 15 – All-terrain crane

19. Figure 16 – Truck-mounted telescopic crane

20. Figure 17 – Truck-mounted and crawler-mounted lattice boom cranes

21. Figure 18 – Crawler- and wheel-mounted crane components

22. Figure 19 – Swing cab, lattice boom truck crane

23. Figure 20 – A heavy-lift crane with counterweights

24. Figure 21 – Load chart

25. Figure 22 – Typical deductions for a hydraulic crane

26. Figure 23 – Typical deductions for a lattice boom crane

27. Figure 24 – Boom length, boom angle, load operating radius, and boom point elevation

28. Figure 25A – Structural strength and stability charts

29. Figure 25B – Structural strength and stability charts

30. Figure 26 – Unlevel and level cranes

31. Figure 27 – Boom length, boom angle, load operating radius, and boom point elevation measurements

32. Figure 28 – Hoist reeving chart

33. Figure 29 – Heavy-lift crane with ten-part reeving

34. Figure 30 – Typical deductions for a lattice boom crane

35. Figure 31 – Jib off angle set

36. Figure 32 – Teeter-totter demonstrating leverage

37. Figure 33 – Bent lever

38. Figure 34 – Crane-shaped lever

39. Figure 35 – Typical center of gravity and leverage distances for each position of a truck-mounted crane

40. Figure 36 – Relative tipping force

41. Figure 37 – Hydraulic jacks

42. Figure 38 – Hydraulic cylinders

43. Figure 39 – Hydraulic pumps

44. Figure 40 – Jacking systems

45. Figure 41 – Grip hoist

46. Figure 42 – Use of rollers

47. Supplemental Art

48. Course Map

49. Appendix

50. Appendix

51. Appendix