Conveyor System

Troubleshooting your Conveyor Systems


Problem: Deterioration in storage

Cause: Mildew of fabric and/or compound

Solution: Always store belting in cool, dry area on racks supported by shafts through belt core. Suggest replacements made with nylon or polyester core.

Problem: Transverse breaks at belt edge

Cause: Folding up of belt edges

Solution: Check tracking. Increase lateral clearance.

Cause: Belt mildew

Solution: Use belt with mildew inhibitor in rubber compounds

Cause: Idler next to head pulley located too high or too close in relation to head pulley

Solution: Reposition final idler pulley.

Problem: Breaks in belt parallel to belt edge or star breaks in belt

Cause: Heavy lumps falling on belt or falling from too great a height

Solution: Reduce impact of material.

Cause: Material lodged between belt and pulley or stuck to back of belt

Solution: Return run should have scrapers ahead of tail pulley.

Problem: Traverse breaks directly behind fasteners

Cause: Belt fasteners too large for pulley size being used.

Solution: Replace with manufacturer's recommended fasteners or change to large pulley size.

Problem: Fasteners pulling out

Cause: Fasteners wrong size or not tight

Solution: Replace fasteners and inspect regularly.

Cause: Belt too tight

Solution: Correct take-up tension.

Cause: Belt too thick for pulleys

Solution: Replace belting or switch to larger diameter pulleys.

Cause: Under belted

Solution: Reduce speed or use larger pulley to reduce "whipping" of belt around pulley. Switch to endless belt. Review engineering data and recalculate. Give special attention to fabric fill construction.

Problem: Splice failure

Cause: Belt too tight

Solution: Ease take-up tension

Cause: Belt carcass to thick for pulleys

Solution: Switch to larger diameter pulleys or replace with more flexible belt.

Cause: Belt speed too high

Solution: Reduce speed or increase pulley size.

Cause: Under belted

Solution: Recalculate tension requirement. Carefully examine failed splice, have adhesions checked, review step length.

Problem: Top cover grooved and gouged

Cause: Skirt boards are pressing against belt

Solution: Adjust skirt boards often Use all rubber - NEVER old belting.

Cause: Space between belt and skirt is too close to belt.

Solution: Adjustment to minimum clearance. taper so that space becomes greater toward head pulley so material can work out.

Cause: Material Jammed at chute

Solution: Improve delivery system to conveyor.

Cause: Metal sides of chute or skirts too close to belt

Solution: Adjust so gap between metal and belt increases in direction of belt travel to avoid jamming.

Problem: Longitudinal splicing failure

Cause: Exposure of heat or chemicals

Solution: Use higher resistant quality polymer and adequate skim between plies.

Cause: Pulley crowning causes stress and tears at tough on crown area

Solution: Improve or remove crown pulley.

Cause: Poor splice

Solution: Carefully examine splice failure, have adhesions checked.


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