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Crane hook is not torsional
Oct 13, 2017

The scrapping specification of crane hooks shall be scrapped when the hook appears in one of the following conditions:

1) crack;

Damage section abrasion

10% of the original size;

The opening rate increased by 15% compared with the original size;

(4) a hook type torsional change across 10 °;

Hook damage section or

In the neck of the hanging hook, the model changes.

The hook rib is corrupt;

In the case of 50% of the original size of the hook liner, it should be changed to a bushing;

When the shaft of the hook is worn at 5% of the original size, the spindle should be changed.


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