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Maintenance for the non-driven side motor components of Atlas Copco oil-injected screw compressors Regular inspection Observe whether there is oil leakage or seepage at the non-driven side end cover ， check for abnormal temperature rise， and use a sound detector to determine if there is any abnormal noise. Check the tightness of the end cover bolts to ensure reliable sealing. Bear maintenance Replace the bearing lubricating grease according to the cycle specified in the motor manual， clean the bearing chamber， and avoid mixing new and old lubricating grease. When replacing the bearings， ensure the model is matched， and install them using heat fitting or special tools to avoid damaging the bearings by knocking. Sensor calibration Regularly calibrate the temperature sensor to ensure detection accuracy； check if the connection terminals are oxidized or loose， and clean or tighten them if necessary. Heat dissipation maintenance

The Atlas Copco adsorption air dryer uses two towers to alternate between adsorption and regeneration, enabling continuous supply of dry air. It is suitable for applications where a lower dew point is required.

Maintenance and Replacement Specifications: Regular Calibration: According to industry standards, safety valves need to be calibrated by professional institutions on a regular basis (typically once a year) to ensure accurate pressure setting and reliable operation; Replacement Timing: If there is valve body leakage, malfunction, or if the calibration is不合格， the original factory safety valve must be replaced immediately. Do not attempt to adjust or repair it yourself； Installation Considerations： During replacement， ensure that the system is depressurized， the installation direction is correct (usually the valve body has a medium flow direction arrow)， the interface is well sealed， and do not install it in reverse or block the exhaust port.

Maintenance Tips for Atlas Copco's Minimum Pressure Valve Regularly check if the valve is leaking (by listening or measuring pressure). If there is a leak, it may be due to worn seals or impurities blocking the mechanism. In such cases, clean or replace the components promptly. When replacing, ensure that the model matches the original factory model to guarantee that the pressure setting value, interface size, and the compressor system are consistent. Avoid poor lubrication or reduced system efficiency due to parameter mismatch. Before restarting after a long shutdown, manually check the flexibility of the valve core to prevent sticking due to oil residue solidification. The Atlas Copco minimum pressure valve, as the "pressure stabilizer" and "check valve" of the compressor oil circuit and gas circuit, is crucial for the safe operation and lifespan of the equipment. It is recommended to use original factory parts to ensure system compatibility and reliability.

Atlas Copco Installation and Maintenance Guidelines During installation, it is necessary to clean the oil stains and impurities from the surface of the distance ring, ensuring a tight fit with the mating parts without any gaps or skew. Avoid striking the edge of the distance ring (especially thin-walled parts), as this may cause deformation and affect the dimensional accuracy. During maintenance and inspection, check if the distance ring is worn, deformed or cracked. If any abnormalities are found, it should be replaced promptly; otherwise, it may lead to a decrease in the assembly quality and operational stability of the air compressor, causing vibration, abnormal noise or leakage, etc. Although the distance ring is a small standard part, its accuracy directly affects the assembly quality and operational stability of the air compressor. When selecting and installing, it is necessary to strictly follow the requirements of the equipment manual.

Attention for the suction control valve of Atlas Copco air compressors: After replacing or repairing the suction control valve, it is necessary to recalibrate the pressure setting value to ensure it matches the system requirements. Avoid using non-original factory parts to prevent abnormal operation of the compressor due to size deviations or material issues.