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Rigging Presentation

Rigging Presentation. Wire Rope. Nomenclature. A wire rope is a Machine with many moving parts. The Core. IWRC. Strand. Fiber. How to describe any wire rope. A typical wire rope may be designated 6X25 FW PRF RLL XIP IWRC. This translates to: A 6 strand (6X25) of filler wire

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Rigging Presentation

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  1. Rigging Presentation

  2. Wire Rope Nomenclature

  3. A wire rope is a Machine with many moving parts

  4. The Core IWRC Strand Fiber

  5. How to describe any wire rope A typical wire rope may be designated 6X25 FW PRF RLL XIP IWRC. This translates to: A 6 strand (6X25) of filler wire construction (FW). The grade of wire used is Extra Improved Plow Steel (XIP). The strands are preformed (PRF) in helical pattern before being laid Right lang (RLL) around an Independent Wire Rope Core (IWRC).

  6. 6X19 IWRC (Internal Wirerope Core)

  7. Paint To Paint = 1 Lay

  8. How a Wire Rope “Machine” Works

  9. Equalizes Unequal Forces on The Rope as it Goes Over the Sheaves Right Lay Regular Lay Left Lay Regular Lay Right Lay Lang Lay

  10. LUBRICATION Ropes and chains shall be regularly lubricated

  11. BLOCK & TACKLE

  12. Slings

  13. Slings Choker Basket Straight Bridle

  14. Straight Sling

  15. Choker Sling

  16. Basket Sling

  17. Bridle Sling

  18. Two legged Bridle Sling

  19. Four legged Bridle Sling

  20. Four legged Bridle Sling

  21. Bridle

  22. SPLICES

  23. Mechanical Splice

  24. Hand Tucked Eye Splice

  25. Hand Tucked Eye Splice

  26. Mechanical Splice

  27. Wire Rope

  28. ROPE INSPECTIONS

  29. Always measure the diameter of any rope at its widest point - by turning the caliper on the rope

  30. What’s wrong with this?

  31. Broken Wires

  32. How many broken wires?

  33. Crushed

  34. Close-up view

  35. Kinking

  36. Bird Caging

  37. Rigging Standard

  38. Slings and Attachments

  39. OSHA STANDARDS 29 CFR 1926 CONSTRUCTION

  40. 1926.251(a)Rigging equipment for material handling • (a) General. (1) Inspection of rigging equipment • (2) Rigging equipment shall not be loaded in excess of its recommended safe working load • (3) Rigging equipment, when not in use, shall be removed • (4) Marking of special custom design grabs, hooks, clamps, or other lifting accessories, for such units as modular panels, prefabricated structures and similar materials, shall be marked to indicate the safe working loads and shall be proof-tested prior to use to 125 percent of their rated load.

  41. 1926.251(a)Rigging equipment for material handling • (5) "Scope." • Applies to slings used in conjunction with other material handling equipment for the movement of material by hoisting, in employment's covered by this part. • Types of slings covered are those made from alloy steel chain, wire rope, metal mesh, natural or synthetic fiber rope (conventional three strand construction), and synthetic web (nylon, polyester, and polypropylene). • (6) "Inspections." • Each day before being used, • Additional inspections where service conditions warrant. • Damaged or defective slings shall be immediately removed from service.

  42. 1926.251(b) Alloy steel chains. (1) Welded alloy steel chain slings shall have permanently affixed durable identification stating size, grade, rated capacity, and sling manufacturer.

  43. 1926.251(b) Alloy steel chains. • (2) Hooks, rings, oblong links, pear-shaped links, welded or mechanical • coupling links, or other attachments, when used with alloy steel chains, • shall have a rated capacity at least equal to that of the chain.

  44. 1926.251(b) Alloy steel chains. • (b)(3) Job or shop hooks and links, or makeshift fasteners, formed from bolts, rods, etc., or other such attachments, shall not be used.

  45. Alloy Steel Chain • (b)(4) Rated capacity (working load limit) for alloy steel chain slings shall conform to the values shown in Table H-1.

  46. Cracked,Pitted & Non-alloy Repair Link • (b)(5) Whenever wear at any point of any chain link exceeds that shown in Table H-2, the assembly shall be removed from service.

  47. Legal Repair Link

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