1 human-powered
lift hoist with hooks to 1.5 times the rated load as proof load test.
2 power-driven
rope hoist lifting mechanism with hooks to two times the rated load as a test load test.
3 hook lifted after test load should not have any obvious defects and deformation, the opening degree of the increase should not exceed 0.25% of the original size.
4 inspection of the
lift hoist hook, the hook should be low stress areas in the marking, including the nominal weight, factory standard or the trade name, inspection mark, production number and so on.
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