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Shackle Selection Use and Maintenance

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Shackles Types and materials: 1.Body types covered are anchor, chain, and synthetic sling (see  Fig. 1). 2.Pin types covered are screw pin and bolt-type (see Fig. 1). 3.Shackles other than those detailed in this chapter shall be used only in accordance with recommendations of the shackle manufacturer or a qualified person. The shackle  shall have sufficient ductility to permanently deform before losing the ability to support the load at the temperatures at which the manufacturer has specified for use. Design factor: (a) The design factor for shackles up to and including a 150 ton rated load shall be a minimum of 5. (b) The design factor for shackles over 150 ton rated load shall be a minimum of 4. Rated loads: Rated load shall be in accordance with the recommendation of the shackle manufacturer. The terms “rated capacity” and “working load limit” are commonly used to describe rated load. Proof Test Requirements: (a) Shackles are not re...
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Rigging Hardware-Eye Bolts Type Use and Operation

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Overview: One of the mostly commonly used items of lifting gears, have severe limitation in usage and high level of accidents occurs as a results of misuse. Eyebolts are used in a wide variety of applications to provide lifting oint on loads. Sometimes the hole they are screwed into is there specifically for the eyebolt. Alternatively a hole which is primarily intended for some other purpose, such as stud, can be utilised. Traditionally eyebolts were often fitted to their load and lidt in palce for life, being regarded s part of the load, however modern practice is to treat detachable lifting point as lifting accessories. As such most the countries require that they are periodically inspected or thoroughly examinated. Therefore good practice is to remove eyebolts, plug the holes and put the eyebolts into storage until needed . This often considerably recuces the quantity required and opens up their options. In general, the best a...
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