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1. The chain is stuck or cannot be pulled:
Possible causes: foreign objects in the chain track, loose or deformed chain, insufficient lubrication
Solution: Clear foreign objects from the track, adjust the tightness of the chain, and apply specialized mechanical lubricant
2. The device is not responding or not functioning:
Possible causes: power supply issue, wiring fault, controller malfunction, motor damage
Solution: Check the power supply and wiring, test the controller, and listen to the motor sound to determine if it is damaged
3. Abnormal noise:
Possible causes: chain is dry and stiff, screws are loose, gears are worn
Solution: Apply lubricating oil, tighten loose screws, and replace severely worn gears
4. Blocked or broken screen mesh:
Solution: Change the mesh form, adjust the tension of the screen mesh reasonably, and modify the material crushing method
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