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　　Hook is one of the key parts of the crane. It requires a large load of weight to collect the crane and must meet relevant requirements. During use, the hook is prone to breakage, which will cause casualties and property losses and cause major accidents. Therefore, during crane maintenance, do not ignore the inspection of the hook.

　　Crane hooks must meet the following conditions:

　　1. The hooks must be produced by a regular manufacturer, meet the technical conditions and safety specifications of the hook, and have a quality certificate.

　　2. The new hook should undergo a load test, and the measurement hook opening should not exceed 0.25% of the original opening.

　　3. During use, you should check whether the hook has cracks or severe deformation, corrosion and wear.

　　4. The hook should be equipped with a locking device to prevent the hanging object from accidentally decoupling.

　　5. If there are defects in the hook, you should replace it in time.

　The main method of testing hooks is visual inspection, that is, to observe carefully with a magnifying glass. If necessary, coloring can be used or flaw detection can be performed. The wear amount of dangerous sections can be measured with a caliper or a caliper; the opening degree is to compare the size measured by the caliper with the original size or the opening degree of the standard hook.

　　Hook is one of the key parts of the crane. It requires a large load of weight to collect the crane and must meet relevant requirements. During use, the hook is prone to breakage, which will cause casualties and property losses and cause major accidents. Therefore, during crane maintenance, do not ignore the inspection of the hook.

　　Crane hooks must meet the following conditions:

　　1. The hooks must be produced by a regular manufacturer, meet the technical conditions and safety specifications of the hook, and have a quality certificate.

　　2. The new hook should undergo a load test, and the measurement hook opening should not exceed 0.25% of the original opening.

　　3. During use, you should check whether the hook has cracks or severe deformation, corrosion and wear.

　　4. The hook should be equipped with a locking device to prevent the hanging object from accidentally decoupling.

　　5. If there are defects in the hook, you should replace it in time.

　The main method of testing hooks is visual inspection, that is, to observe carefully with a magnifying glass. If necessary, coloring can be used or flaw detection can be performed. The wear amount of dangerous sections can be measured with a caliper or a caliper; the opening degree is to compare the size measured by the caliper with the original size or the opening degree of the standard hook.