Brochure

167
SYMPTOMS
[ Indicates most common causes
l Indicates other possible causes
CAUSES
Browning Groove and V-Belt Gauge
Quick and easy way to identify sheave
groove and V-belt type. Assists in
checking for worn grooves.
Troubleshooting
Corrective Maintenance and
Troubleshooting of V-Belt Drives
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 Insufcient Tension Excessive Tension Improper Sheave Installation Belts Worn (Normal Service Life) Wrong Belt Cross-Section or Type Mismatched Belts or Mixed Brands Machine-Induces Impulse or Shock Improper or Prolonged Storage Excessive Heat Excessive Oil or Grease Use of Belt Dressing Abrasive Environment Foreign Objects in Grooves Excessive Moisture Overloaded Drive Underbelting Drive Seriously Overbelted Sheaves Too Small Insufcient Wrap on Small Sheave Backside Idler
Rapid Sidewall Wear
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Worn Cover on Back
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Bell Turns Over Or Jumps Off Sheave
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Belt Soft, Swollen
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Belt Slips, Squeals (Spin Burn)
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Belt Cover Split
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Underside Cracked
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Tie-Band Damaged
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Repeated Breakage
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Belts Ride Too High
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Belts Bottoming
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Repeated Take-up Necesssary
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Belts Vibrate Excessively or Appear
Mismatched
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Bearing Are Hot
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Shafts Whip or Bend
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Cracked Bushings
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Sheave Wobble
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