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The two main problems that cause belts to fail are improper tension and misalignment. Both of these can be prevented with regular inspections and basic knowledge on how to adjust tension and alignment when needed. A belt that is not properly adjusted will tend to vibrate or jerk. It will also wear out much quicker. Another factor that can damage belts is improper storage and handling. Belts should not be exposed to temperature extremes, high humidity, or sunlight. They should also be kept free of dust, water, oil, grease, or rust.