Epiroc SmartROC T40 - Checking Wire Rope for Reduced Elasticity; Checking Wire Rope for Heat Exposure

SmartROC T35/T40 21 Winch
138 No: 7026962571.1.7027002891 en-US
21.7.6 Checking Wire Rope for Reduced Elasticity
Under certain conditions, the wire rope loses its elasticity. Reduced elasticity is difficult to
detect. If in doubt, consult a specialist. If the wire rope has lost elasticity, the following char-
acteristics usually appear:
• Decrease in wire rope diameter
• Extension of the wire rope
• No gap between individual wires and between the strands. It causes during component
pressing.
• Fine, brown dust inside the strands.
• Even if there are no visible wire breaks, the wire rope is noticeably stiffer.
• The wire ropes diameter decreases more quickly than during normal wear of the indi-
vidual wire rope strands.
Reduced elasticity can lead to sudden wire rope breaks during heavy loads. The wire rope
must be scrapped.
21.7.7 Checking Wire Rope for Heat Exposure
The effects of heat can be established through annealing color. Scrap the wire ropes that
are exposed to extreme heat.