What lubricant shall be used on wire rope?

What lubricant shall be used on wire rope?

• A. Light mineral oil
• B. Hydraulic oil
• C. Engine oil
• D. WD-40

Answer: (A)

Lubricating wire rope requires a light mineral oil because it can penetrate into the inner strands and leave a light, even film that reduces wear and corrosion without becoming sticky. This penetration preserves rope flexibility and longevity under bending and load. Other options don’t provide this combination: WD-40 is mainly a solvent that dries out and offers only temporary lubrication, so it won’t protect the rope long-term. Engine oil contains detergents/additives that can gum up fibers and attract dirt. Hydraulic oil is more viscous and not designed to penetrate the rope, potentially leaving undesirable residues. Light mineral oil is the best choice for maintaining rope performance and lifespan.

Lubricating wire rope requires a light mineral oil because it can penetrate into the inner strands and leave a light, even film that reduces wear and corrosion without becoming sticky. This penetration preserves rope flexibility and longevity under bending and load. Other options don’t provide this combination: WD-40 is mainly a solvent that dries out and offers only temporary lubrication, so it won’t protect the rope long-term. Engine oil contains detergents/additives that can gum up fibers and attract dirt. Hydraulic oil is more viscous and not designed to penetrate the rope, potentially leaving undesirable residues. Light mineral oil is the best choice for maintaining rope performance and lifespan.