Core Tip: You can generally be considered from the following four aspects: 1, a large number of broken rope appears. 2, rope wear and breakage while producing and development. 3, the surface and internal corrosion, especially in general from the following four aspects to consider: 1, a large number of broken rope appears. 2, rope wear and breakage while producing and development. 3, the surface and internal corrosion, especially corrosion within the production, by a magnetic flaw detector can be checked. 4, the time has been used for a long rope. Of course, not with the frequency of use and generalize rhythm generally need at least a year, as already with 3 to 5 years worth considering, to determine the correct time, the needs analysis to determine from the record in the regular inspection. Broken wire between the strands uniform. The maximum number of broken wires in a twist from the inside over 32 (about 20% of the total wire rope number). Broken wire rope concentrated in one or two stocks. The maximum number of broken wires in a twist from the inside over 16 (about 10% of the total wire rope number). After the hoisting rope wear diameter less than or equal to 90% of the original nominal rope diameter. Wire hoisting ropes have a greater surface wear or corrosion.