Sidewall Troubleshooting Causes & Cures Causes & Cures Belt bowed Avoid telescoping belt rolls while storing them, and avoid storing in damp locations. A new belt should straighten out when installed, or it must be replaced Belt improperly spliced If improperly spliced, remove belt splice and make a new splice. Set up a regular inspection schedule Damage by abrasives, acid, chemicals, heat, mildew, oil Use belt with cover designed for specific condition. For abrasive materials working their way into cuts, make spot repairs with repair patches. Don’t over lubricate idlers. Belt speed too fast Reduce belt speed Belt strained on one side Allow time for a new belt to settle in. If the belt does not settle in properly or is not new, remove strained section and splice in a new piece Breaker strip missing or inadequate Install a fresh belt with proper breaker strip Take up tension too high Recalculate tension and adjust the take up accordingly. Reduce take up tension to point of slip, and then tighten slightly. Counterweight too light Recalculate the counterweight required and adjust accordingly. Drive underbelted Recalculate maximum belt tensions and select correct belt. Edge worn or broken Remove badly worn out section and splice in a new section Excessive impact of material on belt Use correctly designed chutes and baffles. Install loading idlers. Where possible, load fines first. Excessive tension Recalculate and adjust tension. Frozen idlers Free idlers, lubricate them and improve maintainence. Idlers or pulleys out of square with center line of conveyor Realign, and if possible install limit switches for greater safety. Idlers improperly placed Relocate idlers or insert additional idlers to support the belt Improper loading, spillage Feed should be in direction of belt travel and at belt speed, centered on the belt. Control flow with feeders, chutes, skirtboards. Improper storage of handling Ensure that belts are stored properly prior to installation Insufficient traction between belt and pulley Lag drive pulley. In wet conditions, use grooved lagging. Install correct cleaning devices for safety. Material between belt and pulley Use skirtboards properly. Remove accumulation and improve system maintenance. Material build-up Remove accumulation. Install cleaning devices Pulley lagging worn Replace worn pulley lagging. Use grooved lagging for wet conditions. Pulleys too small Use larger diameter pulleys. Relative loading velocity too high or too low Adjust chutes or correct belt speed. Side loading Load in direction of belt travel, in center of the conveyor. Skirts improperly place Install skirtboards so they don’t rub against the belt.