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Cause:

Improper transition between troughed belt and terminal pulleys

Solutions:

Adjust in accordance with our recommendations

Problem:

Excessive edge wear, broken edges

Cause:

Off-center loading or poor loading

Solutions:

Adjust chute to place the load on the center of the belt; discharge material in direction of belt travel at or near belt speed

Cause:

Material spillage and buildup

Solutions:

Improve loading and transfer conditions; install cleaning devices; improve maintenance

Cause:

Belt hitting structure

Solutions:

Install training idlers on carry and return run

Cause:

Bowed belt

Solutions:

For a newbelt, this condition should disappear during break-in; in rare instances, the belt must be straightened or replaced;

check storage and handling of belt rolls

Problem:

Transverse breaks at belt edge

Cause:

Belt edges folding up on structure

Solutions:

Install limit switches; provide more clearance

Cause:

Improper transition between troughed belt and terminal pulleys

Solutions:

Adjust transitions in accordance with Continental ContiTech Handbook of Conveyor and

Elevator Belting

Cause:

Severe convex (hump) vertical curve

Solutions:

Decrease idler spacing in vertical curve; increase curve radius; consult us for assistance

Problem:

Short breaks in carcass parallel to belt edge, star breaks in carcass

Cause:

Impact of material on the belt

Solutions:

Reduce impact by reducing the chute design; install impact idlers

Cause:

Material trapped between belt and pulley

Solutions:

Install plows or scrapers on return run ahead of tail pulley

Problem:

Ply separation

Cause:

Insufficient transverse stiffness

Solutions:

Replace with the proper belt

Cause:

Pulleys too small

Solutions:

Use larger-diameter pulleys

Cause:

Heat or chemical damage

Solutions:

Use the belt designed for specific condition

30

Installation, Maintenance & Troubleshooting Guide

Troubleshooting