Precautions for the safe use of hooks

1、The hook should be manufactured by the official manufacturer according to the technical conditions and safety specifications of the hook, and the product should have the quality certificate of the manufacturer, otherwise it is not allowed to use.

2、The new hook should be tested under load, and the measured hook opening should not exceed 0.25% of the original opening.

3、The hook should be checked frequently for cracks or serious deformation, corrosion and wear during use.

4、The hook should be tested once a year. The test shall be carried out with 1.25 times the allowable working load for 10 minutes of static force test, using a magnifying glass or other methods to check, there should be no cracks, cracks and residual deformation.

5、The three dangerous sections should be cleaned with paraffin and checked with a magnifying glass for cracks. For the plate hook should check the bushing, pin wear.

6、The defects on the hook should not be welded.

Hook