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Crane Rigging. © Business & Legal Reports, Inc. 0907 Understand the basics of crane operations Choose the correct sling or rigging hardware Inspect rigging.

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Presentation on theme: "Crane Rigging. © Business & Legal Reports, Inc. 0907 Understand the basics of crane operations Choose the correct sling or rigging hardware Inspect rigging."— Presentation transcript:

1 Crane Rigging

2 © Business & Legal Reports, Inc Understand the basics of crane operations Choose the correct sling or rigging hardware Inspect rigging hardware Rig a load correctly Session Objectives

3 © Business & Legal Reports, Inc CFR , , , ANSI/ASME API RP 2D 29 CFR , , , ANSI/ASME API RP 2D Crane Standards

4 © Business & Legal Reports, Inc Types of Cranes Mobile Telescopic Tower Gantry/Overhead Vessel

5 © Business & Legal Reports, Inc Weight of Load Rated Capacity Boom Height/Length/Angle Load Chart and Lift Radius © Business & Legal Reports, Inc Essential Data

6 © Business & Legal Reports, Inc Sling or hardware rating Reduced angle means less capacity Crane hardware rating Rigging Hardware Data Sling or hardware rating Reduced angle means less capacity Crane hardware rating

7 © Business & Legal Reports, Inc Sling angle Center of gravity Sharp corners Load under control Tag line Obstructions Personnel out of the way Weather Sling angle Center of gravity Sharp corners Load under control Tag line Obstructions Personnel out of the way Weather Serious Questions

8 © Business & Legal Reports, Inc Why Not Just Wing It?

9 © Business & Legal Reports, Inc Sling Selection Rated capacity Material composition Size, design, and configuration Condition Tags © Business & Legal Reports, Inc. 0907

10 Strong Fit shape of load Tolerate high temperatures Damaged by shocks Watch for damage Strong Fit shape of load Tolerate high temperatures Damaged by shocks Watch for damage Chain Slings

11 © Business & Legal Reports, Inc Composed of strands of wire rope May have fiber core Can experience cracking or kinking Composed of strands of wire rope May have fiber core Can experience cracking or kinking Wire Rope Slings

12 © Business & Legal Reports, Inc Rope Lay Right lay Left lay

13 © Business & Legal Reports, Inc Rope Lay (cont.) Regular lay Lang lay

14 © Business & Legal Reports, Inc Strength Flexibility Durability Strength Flexibility Durability Wire Rope Sling Selection

15 © Business & Legal Reports, Inc Similar to chain mail Fits shape of load For basket or choke hitches Similar to chain mail Fits shape of load For basket or choke hitches Wire or Metal Mesh Slings

16 © Business & Legal Reports, Inc For lighter loads Protect surface of load Susceptible to deterioration Stretch when wet Must be inspected thoroughly For lighter loads Protect surface of load Susceptible to deterioration Stretch when wet Must be inspected thoroughly For lighter loads Protect surface of load Susceptible to deterioration Stretch when wet Must be inspected thoroughly Fiber Rope Slings

17 © Business & Legal Reports, Inc Nylon, Dacron, or polyester Contour to fit the load Durable and resistant to degradation Nylon, Dacron, or polyester Contour to fit the load Durable and resistant to degradation Synthetic Web Slings

18 © Business & Legal Reports, Inc Which Sling Is It? Match the sling name to the description Chain Wire Rope Metal Mesh Fiber Rope Synthetic Web Lay is important For heavy or hot loads Unlikely to biodegrade For light loads only Similar to chain mail

19 © Business & Legal Reports, Inc Questions? Basic crane operations Rated capacity and load charts Slings and sling selection

20 © Business & Legal Reports, Inc Check for: Excessive wear Distortion or stretching Corrosion Heat stress Chemical damage Check for: Excessive wear Distortion or stretching Corrosion Heat stress Chemical damage Sling Inspection

21 © Business & Legal Reports, Inc Chain Sling Inspection Check inside ends and outside edges Excessive stretching is unsafe Watch for binding © Business & Legal Reports, Inc. 0907

22 Wire Rope Sling Inspection Cracking and pitting Kinking Deformation Rust Heat stress Broken wires Damaged fittings © Business & Legal Reports, Inc. 0907

23 Fiber Rope Sling Inspection Dry, discolored fibers Powder or dust from internal wear Fibers that come apart © Business & Legal Reports, Inc. 0903

24 © Business & Legal Reports, Inc Holes, snags, tears Broken or worn stitching Heat stress and burns Synthetic Web Sling Inspection © Business & Legal Reports, Inc. 0907

25 Sling Maintenance Keep it clean Repair may be possible Lubricate wire rope slings Store safely

26 © Business & Legal Reports, Inc Inspect with care Never use equipment with parts malfunctioning or missing Inspect with care Never use equipment with parts malfunctioning or missing Shackles, Clips, Eyes, and Other Hardware

27 © Business & Legal Reports, Inc A safety latch is essential Bent hooks must be retired A safety latch is essential Bent hooks must be retired Hooks

28 © Business & Legal Reports, Inc Hitches Single vertical Bridal hitch Basket hitch Choker hitch Learn with experience!

29 © Business & Legal Reports, Inc Preparing the Lift Personal protective equipment (PPE) Hook and line over load Lines not kinked or twisted © Business & Legal Reports, Inc. 0907

30 Preparing the Lift (cont.) “Rig up the load” Hook latch closed Path clear Lift tested © Business & Legal Reports, Inc. 0907

31 Crane Signals

32 © Business & Legal Reports, Inc The “Nevers” Use a twisted line Lift by the block hook Use unsafe equipment Allow an unsafe lift Never

33 © Business & Legal Reports, Inc Use more than one signalman Work under a suspended load Turn your back on a lift The “Nevers” (cont.) Never

34 © Business & Legal Reports, Inc A type of hitch in which two slings meet at the crane hook is a _____ ____. An essential part of the crane hook that keeps the sling from sliding off is a ____ or ___. A term for describing the pattern of wires in a wire rope is ___. The maximum weight a crane or sling will support is _____ _______. What Is? (Fill in the blanks) bridle hitch clip lay ratedcapacity latch

35 © Business & Legal Reports, Inc Questions or Comments?

36 © Business & Legal Reports, Inc Key Points to Remember! Takes years of practice Is always interesting Learn all you can Be cautious; think safety Routine lifts can be deadly


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