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　　Hook is the most important crane accessories on lifting machinery equipment. Its use must meet the requirements of lifting equipment. This is because the lifting equipment has certain load limits. If the load capacity exceeds the load, it will cause wear of the hook parts, causing danger. Therefore, when selecting the hook, it should be selected to match the lifting equipment.

　　Before the use of a crane, the hook should be inspected. When inspecting and testing, the various types of lifting hook inspection items and contents are the same, but there is a slightly different requirement.

　　1. Safety inspection of using crane hook lift hook: According to the use of the situation, check regularly at least once every six months for cleaning and lubrication.

　　2. General inspection methods for lifting hooks: First use a kerosene hook hook to spirochete disease, and then use a 20x magnifying glass to check for fatigue cracks. Especially for the dangerous part, carefully check the plate hook shrubs, pins, holes and other penetrations to check loose fasteners. Some large-scale high-rise work or in important environmental conditions of crane hooks should be used to detect external defects in the lifting hooks.

　　The technical documentation and factory certification of the production unit that is in use for the lower leptospira of the crane hook and identify the mark. Before being put into use, it should be marked as load testing and confirmed that the permitted process is confirmed. Inspection method: incrementally increase the load gradually to 1.25 times the rated load when the hook load requires no less than 10 minutes. After unloading, the lifting hook must not have cracks or other defects, and the degree of openness of deformation should not exceed 0.25%. The above is the editor’s summary, I hope it will be helpful to everyone.

　　Hook is the most important crane accessories on lifting machinery equipment. Its use must meet the requirements of lifting equipment. This is because the lifting equipment has certain load limits. If the load capacity exceeds the load, it will cause wear of the hook parts, causing danger. Therefore, when selecting the hook, it should be selected to match the lifting equipment.

　　Before the use of a crane, the hook should be inspected. When inspecting and testing, the various types of lifting hook inspection items and contents are the same, but there is a slightly different requirement.

　　1. Safety inspection of using crane hook lift hook: According to the use of the situation, check regularly at least once every six months for cleaning and lubrication.

　　2. General inspection methods for lifting hooks: First use a kerosene hook hook to spirochete disease, and then use a 20x magnifying glass to check for fatigue cracks. Especially for the dangerous part, carefully check the plate hook shrubs, pins, holes and other penetrations to check loose fasteners. Some large-scale high-rise work or in important environmental conditions of crane hooks should be used to detect external defects in the lifting hooks.

　　The technical documentation and factory certification of the production unit that is in use for the lower leptospira of the crane hook and identify the mark. Before being put into use, it should be marked as load testing and confirmed that the permitted process is confirmed. Inspection method: incrementally increase the load gradually to 1.25 times the rated load when the hook load requires no less than 10 minutes. After unloading, the lifting hook must not have cracks or other defects, and the degree of openness of deformation should not exceed 0.25%. The above is the editor’s summary, I hope it will be helpful to everyone.