How to maintain your oil-free screw compressor

Like all electromechanical equipment, oil-free screw compressors require regular maintenance to operate at maximum efficiency and minimize unplanned downtime. Improper maintenance can cause problems such as reduced compression efficiency, air leakage, and pressure changes. All equipment in the compressed air system should be maintained in accordance with the manufacturer's specifications.

Daily maintenance oil-free screw compressor

Oil-free screw compressors require relatively little routine maintenance. With this type of compressor, the microprocessor control panel is responsible for monitoring the status of the air and lubricating oil filters.

Daily maintenance

After the regular startup, observe various control panel displays and local meters to check whether the normal readings are displayed. Use previous records to help determine if the current measurement is within the normal range. These observations should be made under all expected operating modes (ie full load, no load, different line pressures and cooling water temperatures).

After the first 50 hours of operation-the basic reading of the operating conditions must be verified and the necessary adjustments must be made.

Every 3000 hours of work-every 3000 hours should check the following items:

Check/replace lubricating oil filling and filter elements.

Check/replace the air filter element.

Check/replace the sump breather filter element.

Check/clean control line filter element

Check/clean condensate drain valve

Check the condition of the coupling components and the tightness of the fasteners.

Measure and record the vibration signals on the compressor, gearbox and motor.

It is generally recommended to rebuild the air intake every year.