Preventive maintenance extends compressor life, keeps energy consumption stable, and reduces the risk of unexpected shutdowns. The schedule should be divided into daily, periodic, and annual tasks so operators can manage the workload consistently.

Daily Checks

• Drain condensate from the receiver tank, dryer, and filters.
• Check the oil level and look for visible leaks.
• Record discharge temperature and operating pressure.
• Listen for unusual noise or vibration.

Periodic Service: 2000 / 4000 / 8000 Hours

• Replace the air filter at the recommended interval or more often in dusty conditions.
• Replace the oil filter and separator according to the maintenance plan.
• Change compressor oil using the correct grade and viscosity.
• Inspect belts, couplings, hoses, and electrical connections.

Annual and Overhaul Tasks

• Clean the cooler and confirm cooling fan operation.
• Test safety valves, pressure switches, and sensors.
• Check the inlet valve, minimum pressure valve, and drain system.
• Review operating records for rising temperature or falling performance trends.

Using original or approved consumables helps maintain consistent performance. Following a structured plan is the most effective way to extend screw air compressor lifespan and avoid expensive emergency repairs.

For complex inspections or component replacement, contact the compressor manufacturer for the correct procedure and spare part list.