Precautions for safe use

1. The hook should be manufactured by a formal professional factory in accordance with the technical conditions and safety regulations of the hook. The product should have a quality certificate from the manufacturer, otherwise it is not allowed to be used.
2. The new hook should undergo a load test, and the measured hook opening should not exceed 0.25% of the original opening.
3. During use, the hook should be checked frequently for cracks or serious deformation, corrosion and wear.
4. The hook should be tested once a year. During the test, conduct a static test for 10 minutes at 1.25 times the allowable working load. Check with a magnifying glass or other methods. There should be no cracks, cracks and residual deformation.
5. The three dangerous sections should be cleaned with kerosene, and use a magnifying glass to see if there are any cracks. The plate hook should be inspected for wear on bushings and pins.
6. Defects on the hook must not be repaired by welding.