1、 Vacuum system malfunction

1. Insufficient vacuum degree or inability to establish vacuum
   • fault phenomenonSlow suction speed, inability to transport materials properly, or inability to suction materials.
   • Possible reasons：
     • Vacuum pump wear or aging of seals can cause vacuum leakage.
     • The suction pipe is blocked or damaged, and air enters the system.
     • The vacuum filter is clogged and the airflow is obstructed.
   • solution：
     • Check and replace the vacuum pump seal or repair the pump body.
     • Clean or replace blocked suction pipes and repair damaged areas.
     • Regularly clean or replace the vacuum filter.
2. Excessive noise from vacuum pump
   • fault phenomenonAbnormal noise is generated during the operation of the vacuum pump.
   • Possible reasons：
     • The internal parts of the vacuum pump are worn or loose.
     • The motor bearings are damaged.
     • The installation foundation is unstable.
   • solution：
     • Disassemble the vacuum pump, inspect and replace worn parts.
     • Replace the motor bearings.
     • Re fix the equipment to ensure a secure installation.

2、 Suction pipeline malfunction

1. pipe blockage
   • fault phenomenonThe suction speed decreases or stops, and the pressure inside the pipeline is abnormal.
   • Possible reasons：
     • The material is damp, clumped, or mixed with foreign objects.
     • The bending radius of the pipeline is too small, resulting in material accumulation.
   • solution：
     • Clean the blockages in the pipeline to ensure that the material is dry and free of clumps.
     • Redesign the pipeline layout and increase the bending radius.
2. Pipeline leakage
   • fault phenomenonThe vacuum degree decreases and the suction efficiency decreases.
   • Possible reasons：
     • Loose pipeline joints or aging seals.
     • Pipeline damage or perforation.
   • solution：
     • Tighten the pipeline joints and replace the seals.
     • Repair or replace damaged pipelines.

3、 Electrical system malfunction

1. Control system unresponsive
   • fault phenomenonThe device cannot start due to no display or button failure on the operation panel.
   • Possible reasons：
     • Power failure or blown fuse.
     • Control circuit open circuit or short circuit.
     • PLC or controller malfunction.
   • solution：
     • Check the power connection and replace the fuse.
     • Repair or replace the control circuit.
     • Restart or replace the PLC/controller.
2. Abnormal sensor signal
   • fault phenomenonMaterial level sensor false alarm or no signal, resulting in equipment misoperation or stoppage.
   • Possible reasons：
     • The sensor is damaged or installed in an improper position.
     • Poor circuit contact or signal interference.
   • solution：
     • Adjust or replace the sensor to ensure correct installation position.
     • Check and repair the circuit, and add shielding measures.

4、 Material conveying malfunction

1. Poor material transportation
   • fault phenomenonThe material flows slowly or stagnates in the pipeline.
   • Possible reasons：
     • The material particle size is too large or the shape is irregular.
     • The suction speed is too fast, resulting in material accumulation.
   • solution：
     • Replace materials that meet the requirements or adjust the particle size of materials.
     • Reduce the suction speed to ensure uniform material transportation.
2. material residue
   • fault phenomenonA large amount of material remains in the pipeline or silo, affecting the next suction.
   • Possible reasons：
     • The blowback system is malfunctioning and unable to clean the pipeline.
     • The silo design is unreasonable and there are blind spots.
   • solution：
     • Check and repair the blowback system to ensure proper functioning.
     • Optimize silo design to reduce dead corners.

5、 Other common faults

1. Equipment overheating
   • fault phenomenonThe temperature of the device casing is too high and may be accompanied by an odor.
   • Possible reasons：
     • Motor overload or poor heat dissipation.
     • The vacuum pump runs continuously for a long time and lacks cooling.
   • solution：
     • Check the motor load and adjust the working parameters.
     • Add heat dissipation devices or arrange for intermittent operation of equipment.
2. Frequent blockage of filter element
   • fault phenomenonThe filter element needs to be cleaned or replaced frequently, which affects production efficiency.
   • Possible reasons：
     • Excessive material dust or inappropriate filter material.
     • Insufficient pressure in the blowback system prevents effective cleaning of the filter element.
   • solution：
     • Add a pre filtration device to reduce the entry of dust.
     • Replace the high-efficiency filter element or adjust the pressure of the blowback system.

6、 Maintenance and preventive measures

1. Regular inspection and maintenance
   • Develop equipment maintenance plan and regularly inspect key components such as vacuum pumps, pipelines, and filter cartridges.
   • Clean the dust inside the equipment to ensure good heat dissipation.
2. Operating Specifications
   • Strictly follow the operating procedures to use the equipment and avoid overloading.
   • Regularly train operators to improve their ability to identify faults.
3. Spare Parts Management
   • Reserve commonly used spare parts (such as seals, filters, pipelines, etc.) to ensure timely replacement in case of malfunction.