Overhead Bridge Crane hooks should be replaced when one of the following conditions:
1. The overhead bridge crane hook appeared cracked.
2. The bridge crane hook wear dangerous section is up to 10% of original size.
3. Overhead bridge crane hook opening degree is 15% higher than the original size.
4. Overhead crane hook torsional deformation is over 10 °.
5. The bridge crane hook dangerous section or hook neck appears plastic deformation.
6. Overhead bridge crane hook plate bushing wear is up to 50%, must replace bush.
7. Overhead crane hook plate mandrel wear is up to 50%, must replace mandrel.
1. The overhead bridge crane hook appeared cracked.
2. The bridge crane hook wear dangerous section is up to 10% of original size.
3. Overhead bridge crane hook opening degree is 15% higher than the original size.
4. Overhead crane hook torsional deformation is over 10 °.
5. The bridge crane hook dangerous section or hook neck appears plastic deformation.
6. Overhead bridge crane hook plate bushing wear is up to 50%, must replace bush.
7. Overhead crane hook plate mandrel wear is up to 50%, must replace mandrel.
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