Worn Cover on Back Belt Turns Over or Jumps Off Sheaves
Belt Soft, Swollen
Belt Slips, Squeals (Spin Burn) Belt Cover Split
Underside Cracked Tie Band Damaged Repeated Breakage Belts Ride Too High
Belts Bottoming Repeated Take-Up Necessary
Belts Vibrate Excessively or Appear Mismatched
Bearings Are Hot Shafts Whip or Bend Cracked Bushings Sheave Wobble
Most Common Cause Other Possible Causes
Belts
231 OEP
Belts
Belts Pried On or Misplaced Slack Belts Rubbing Guard Sheaves Misaligned Worn or Damaged Sheaves Sheaves Too Far From Bearing Poor Bearing or Shaft Condition Insufficient Tension Excessive Tension Improper Sheave Installation Belts Worn (Normal service life) Wrong Belt Cross-Section or Type Mismatched Belts or Mixed Brands Machine Induces Impluse or Shock Improper or Prolonged Storage Excessive Heat Excessive Oil or Grease Use of Belt Dressing Abrasive Environment Foreign Object in Grooves Excessive Moisture Overloaded Drive – Underbelting Drive Seriiously Overbelted Sheave Too Small Insufficient Wrap or Small Sheave Backside Idler