4/25/2023 0 Comments Directional drilling swivels![]() ![]() If for any reason the stenciled work load is not legible, the swivel should be removed from service. If the work load is in question, please consult the manufacturer of the swivel. Usually a swivel’s workload is stenciled on the ball bearing swivels, read and follow the work load. It is clearly visible that the pin side of the swivel gap is compressed and bent out of shape.ĭo not exceed the workload (WL) of the swivel. Usually pins are available with standard slot grooves or with Allen wrench fittings so make sure to use the proper tool to tighten them. If pins have stripped threads, replace immediately. Before making a pull, make sure swivel pins are tightened all the way and mate up properly.Any such sloppiness would indicate a damaged swivel which should be discarded. Swivel sections should be snugly fitted together with no sloppiness in the operation. The swivel’s stem should not be loose, with no up and down or lateral movements.Make sure the swivel rotates freely without any binding. A healthy swivel should rotate smoothly and freely.If there are any abnormalities on the pins the swivel should be removed from service and discarded. ![]() They should not be bent, deformed, worn, cracked and their threads should not be stripped, worn or misshaped. If any cracks are apparent discard the swivel immediately. Check for any cracks around the throat on both ends of the swivel, and on the body of the swivel.This applies to all swivel types including sealed, sealed greasable, and non-sealed swivels. Always inspect the swivels carefully before and after each use.The following are some general guidelines in maintenance and operation of ball bearing swivels to help with safety of your operation and health of your gear. Swivels in the overall cost of operation are relatively inexpensive but accidents are not. Major crack leading to failure of the swivel and dropping the load. The non-sealed swivels should not be used in pull back operations as they have no seal to prevent ball bearing damage resulting from the contaminants. These lower cost swivels provided an affordable alternative to sealed ball bearing swivels. unsealed or regular) swivels were originally designed for basic in conduit cable pulls as chances of swivel’s exposure to contaminant were lower. Make sure the grease zerk has a recessed design so it is protected during the pull. These grips typically are equipped with a grease zerk that can be used to purge the old grease (which gets rid of the contaminants) and fill the swivel with new grease. Sealed Greasable – Used in underground pulling application where exposure to contaminant such as bentonite, mud and dirt is maximum. They never need to be internally greased again. These swivels are greased and permanently sealed at the factory. Sealed – Typically used in overhead pulling application where chance of exposure to contaminant such as mud or dirt is minimal. There are different types of ball bearing swivel made: In all applications, a ball bearing swivel’s main function is to provide a rotating link that releases the rotational torque on the pull (cable, wire rope, conduit, etc.) by keeping the pull in the neutral position so to eliminate the twisting of the pull. Crane/Hoist operation use of eye to eye swivels for load handling and control of a lift. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |