1. Visual Inspection
Surface Wear: Observe the belt for visible cracks, delamination, or edge wear (e.g., flattened teeth or whitening of the surface). If the wear depth exceeds 1mm or affects structural strength, it requires replacement.
Physical Damage: Inspect for tears, perforations, or localized hardening, especially at joints for looseness or cracking.
2. Operational Status Monitoring
Abnormal Noise: Squeaking or metallic friction sounds during operation may be caused by belt slippage or internal fracture.
Slippage and Deviation: If material conveyance is unstable or the belt frequently deviates from its track, check the tension or replace it.
3. Tension and Dimension Measurement
Press Test: After stopping the machine, press the center of the belt. If the belt sinks more than 10-15mm (industry standard) or is noticeably loose, it requires adjustment or replacement. Dimensional Change: Measure the belt tooth height with a caliper. If the belt tooth height is less than 70% of the original height (e.g., if the new belt tooth height is 5mm, the belt tooth height will be ≤3.5mm after wear), the belt needs to be replaced.
4. Environmental and Maintenance Records
Chemical Corrosion: If the belt expands or softens after contact with oil, acid, or alkali, it needs to be replaced immediately.
Regular Inspection: It is recommended to inspect the belt every 3-6 months and record wear data to predict the replacement period.
Precautions
Safe Operation: Always turn off the power before inspection and avoid contact with the belt during operation.
Matching Replacement: The new belt must be the same model as the original to avoid secondary damage due to size or material differences.
