DIAMETER REDUCTION

ABRASION

• Lack of lubrication
• Excessive abrasion
• Corrosion, internal and/or external

HIGH STANDING

• Poor seizing techniques
• Tight grooves
• Undersized sheaves
• Poor installation techniques

• Frozen sheaves or rollers
• Tight grooves
• Excessive fleet angle
• Oversized or undersized rope
• Corrugated sheave or drum
• Sheave overspin
• Rope jumping the sheave
• Poor spooling
• Misaligned sheaves
• Site contaminants

JUMPING THE SHEAVE

CORE PROTRUSION AND SLIPPAGE

• Poor spooling
• Excessive rope length
• Broken flange

• Shockloading
• Poor seizing techniques
• Poor installation techniques

KINKING

CORROSION

• Poor unreeling procedures
• Poor installation techniques
• Undersized sheaves

• Lack of lubrication
• Environmental damage
• Improper storage

LAY LENGTHENING AND TIGHTENING

CRUSHING

• Poor installation techniques
• Poor unreeling procedures
• Corrosion
• Core failure

LOOPED WIRES

• Poor installation techniques
• Undersized sheaves

• Poor installation techniques
• Crosswinding
• Poor spooling
• Incorrect wire rope construction
• Poor break-in procedure
• Excessive fleet angle
• Excessive rope length

UNBALANCED ROPE

FATIGUE

• Oversized sheaves

• Out of round sheaves
• Tight grooves
• Misaligned sheaves
• Undersized sheaves
• Worn bearings
• Vibration
• Slapping
• Whipping
• Reverse bends