Trouble Shooting Checklist

Potential Causes of Wire Rope Damage By Indicator

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