At what level of wear should a wire rope be scrapped?

[VanNolan]

Wire rope wear: For lifting machinery wire ropes, the rope should be scrapped if the number of broken wires within one lay length reaches 10% of the total number of wires. Automobile abnormal noises: As the usage time of automobiles increases, along with improper operation, maintenance quality, and the influence of the natural environment, various components may produce noises exceeding specified limits due to wear, damage, looseness, aging, poor contact, short circuits, and open circuits. These noises include knocking sounds, high-speed operation whistles, part rubbing sounds, gear grinding sounds, etc. Approximately 70% of automobile faults are manifested through abnormal noises. Therefore, identifying general patterns and characteristics of faults from these most intuitive manifestations can greatly facilitate automobile fault diagnosis. Automobile performance abnormalities: Automobile performance abnormalities are relatively common fault phenomena. Examples include difficulty starting, automatic stalling, generator failure to generate electricity, difficulty shifting gears, steering failure, brake failure, etc.