Page 27 - ConveyorBeltMaintenanceManual2010

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TROUBLESHOOTING
PROBLEM: Conveyor runs to one side at given point on structure
CAUSE:
Buildup of material on idlers
SOLUTIONS:
Remove accumulation; improve maintenance; install scrapers or other cleaning devices
CAUSE:
Sticking idlers
SOLUTIONS:
free idlers ands improve maintenance and lubrication
CAUSE:
Idlers or pulleys out-of-square with centerline of belt
SOLUTIONS:
Readjust idlers in affected area
CAUSE:
Conveyor frame or structure crooked
SOLUTIONS:
Straighten in affected area
CAUSE:
Idler stands not centered on belt
SOLUTIONS:
Readjust idlers in affected area
CAUSE:
Structure not level
SOLUTIONS:
Level structure in affected area
PROBLEM: Particular section of belt runs to one side at all points on the conveyor.
CAUSE:
Belt not spliced/joined squarely
SOLUTIONS:
Remove affected splice and re-splice
CAUSE:
Bowed belt
SOLUTIONS:
For a new belt, this condition should disappear during break-in; in rare instances, belt must be straightened
or replaced; check storage and handling of the belt rolls
PROBLEM: Belt runs to one side for long distance or entire length of the conveyor
CAUSE:
Belt running off-center around the tail pulley and through the loading area
SOLUTIONS:
Install training idlers on the return side prior to the tail pulley
CAUSE:
Off-center or poor loading
SOLUTIONS:
Adjust chute to place load on center of belt; discharge material in direction of belt travel at or near belt
speed
CAUSE:
Buildup of material on idlers
SOLUTIONS:
Remove accumulation; improve maintenance; install scrapers or other cleaning devices
CAUSE:
Idlers or pulleys out-of-square with centerline of the belt
SOLUTIONS:
Readjust idlers in the affected area
CAUSE:
Conveyor frame or structure crooked
SOLUTIONS:
Straighten in affected area
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INSTALLATION, MAINTENANCE & TROUBLESHOOTING GUIDE
T R O U B L E S H O O T I N G