China atlas copco oil free air compressor Manufacturer, Supplier, Factory

Maintenance and replacement instructions for the VCU (Valve Control Unit) service kit of Atlas Copco screw air compressors When the compressor experiences frequent loading/unloading, pressure out-of-control, valve sticking, or VCU leakage, it may be related to the valve control unit failure. It is recommended to use this service kit for repair. During the replacement process, follow the specifications in the equipment manual, pay attention to the correctness of electrical connections and the installation direction of sealing components, and if necessary, calibrate the control parameters to ensure that the VCU function returns to normal after the repair.

1900520013 This controller is equipped with 3G connection functionality. It enables the machine to be connected to the cloud without any additional cost, facilitating users to conduct remote monitoring and management through Atlas Copco's Smartlink 2.0 monitoring system, thereby helping factories advance towards Industry 4.0.

Replacement and Maintenance Recommendations: Replacement Cycle: Generally, replace the filter every 1,000 - 2,000 hours or 6 months (whichever comes first). In environments with high dust concentration (such as mines, cement plants), this period should be shortened to 500 - 800 hours. Replacement Indicators: If the intake resistance becomes excessively high (over 100 - 150 mbar, which can be observed through a pressure gauge), if the compressor's exhaust volume decreases, or if there is abnormal noise from the main unit, it is necessary to immediately check and replace it. Maintenance Tips: During daily maintenance, the filter element can be removed. Use compressed air to blow off the surface dust from the inside out (pressure ≤ 5 bar), but do not wash it with water; during replacement, clean the interior of the filter housing to ensure there are no residual impurities.

Key points for replacement and installation Shut down the equipment, release pressure and cool down to normal temperature. Close the inlet / return oil valves to prevent hot oil from spilling out. Record the path of the pipeline and the sequence of the joints, and keep the identification of the old parts. Clean the interfaces and installation surfaces. Replace the O-ring / sealing parts if necessary. Tighten the joints according to the specified torque; avoid excessive bending and stretching of the rubber hose; firmly fix the rigid pipe to prevent vibration wear. Before starting the equipment, check the oil level and sealing performance. After operation, recheck the pressure drop and leakage.

Core parameters and replacement Filter accuracy: approximately 10 - 15 μm, protecting the main unit bearings and rotor. Replacement cycle: usually every 4,000 - 8,000 hours or according to the equipment manual; in harsh environments, it can be shortened. Installation tips: After applying oil to the new filter element sealing ring, install it with the specified torque; after replacement, check the oil level and pressure drop.

Atlas Copco Gear Maintenance Tips Regular Inspection: Observe the condition of the gear tooth surface, measure the tooth clearance, and replace them immediately if any abnormalities are found. Lubrication Management: Use dedicated gear oil (or air compressor-specific oil), replace it regularly, and keep the oil level normal to avoid oil contamination. Installation Calibration: Ensure that the parallelism and perpendicularity of the gear shaft meet the requirements, and avoid uneven load operation. Load Control: Prevent the air compressor from operating under long-term overloading conditions, and reduce the fatigue damage to the gears. The design and maintenance of air compressor gears are crucial for the overall performance of the machine. High-precision gear combinations with a good lubrication system can significantly reduce operating noise, extend service life, and ensure the efficient and stable operation of the air compressor.