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While the life cycle of an industrial air compressor typically exceeds 10 years, proper maintenance is crucial to maintaining performance and efficiency. As with most plant systems, planned preventive maintenance is key to keeping air compressors in top condition. While the entire system including clean air treatment equipment, receivers and consumables should be inspected at least twice per year, the compressor is the heart of the system and with a few simple checks can be easily maintained. Plan preventive maintenance in advance and contract with an experienced air system provider or train in-house personnel through reputable training courses offered by the manufacturer.

Compressors can be divided into seven sub-assemblies: pump or airend, motor, drive train, lubricants, controls, coolers and filters. These sub-assemblies are expensive components, and must be maintained on a regular basis. In addition, the benefits of using genuine filters and maintenance parts, and replacing them when needed should not be underestimated. Any contaminants not trapped in the filters will eventually damage machinery and equipment. Using proper filtration and quality fluids is more cost effective than repairing damaged equipment.

Keep the following checklist as a guide for routine maintenance. Plus, the "Problem / Solution" trouble shooting guide, can help identify areas that need attention.

In addition to component maintenance, attention to proper ventilation, ambient temperature and contaminant levels also goes a long way in avoiding problems in the compressed air system.

Trouble shooting guide

Problem: Compressor is running too hot.

Solution: Clean cooler and check for any airflow restrictions. For water-cooled units, check water flow, pressure and quality. Check the lubricant level and add more lubricant if required. Ensure that the area is properly ventilated and correct excessive ambient temperatures.