How to Properly Maintain Your 20 kW Generator, 20kW Diesel Generator for Sale

How to Properly Maintain Your 20 kW Generator

Posted in: Diesel Generators Generator Maintenance

A 20 kW generator is a vital component for many businesses and facilities, ensuring a reliable power supply during outages. Proper maintenance is crucial to keep your 20 kW generator operating efficiently and to extend its lifespan. Before you start your search for a 20kW Diesel Generator for Sale, here’s a detailed guide on how to maintain your 20 kW diesel generator.

1. Regular Inspection

Conducting regular inspections can help you identify potential issues early. Look for:

  • Leaks: Check for any oil, coolant, or fuel leaks.
  • Corrosion: Inspect battery terminals and other metallic parts for signs of corrosion.
  • Connections: Ensure all connections are secure and free from debris.

2. Change the Oil and Filters

Regular oil changes are essential for the health of your 20 kW generator. Follow the manufacturer’s recommendations for oil change intervals, typically after every 100-200 hours of operation. Along with oil changes, replace the oil filter, air filter, and fuel filter to keep the engine clean and efficient.

3. Coolant System Maintenance

The coolant system prevents your 20 kw generator from overheating. Regularly check the coolant level and top it up as necessary. Ensure the coolant mixture is correct, usually a 50/50 mix of water and antifreeze. Inspect the radiator and hoses for any leaks or damage.

4. Battery Maintenance

A well-maintained battery is crucial for ensuring your 20 kw diesel generator starts when needed. Regularly test the battery voltage and charge it if necessary. Clean the battery terminals and apply a corrosion inhibitor to prevent buildup.

5. Fuel System Checks

For diesel generators, ensure the fuel is clean and free from contaminants. Regularly drain the fuel filter water separator and check the fuel tank for signs of water or sediment. Use a fuel stabilizer if the 20kw generator is not used frequently.

6. Exercise the Generator

Run your 20 kw generator periodically to keep the engine parts lubricated and the battery charged. This also helps in identifying any issues before an actual power outage occurs. Exercise the generator under load for at least 30 minutes once a month.

7. Check the Exhaust System

Inspect the exhaust system for any signs of leaks or damage. Ensure the exhaust pipe is clear of obstructions. Regularly clean the exhaust to prevent buildup of soot and other residues.

8. Keep It Clean

Maintain a clean environment around your 20 kw diesel generator. Remove any debris, dust, or dirt from the generator’s surface. Ensure the vents and air intakes are clear to allow proper airflow and cooling.

9. Professional Servicing

Schedule regular professional maintenance checks. A certified technician can perform more detailed inspections and maintenance tasks, ensuring your 20kw generator is in top condition.

10. Record Keeping

Maintain a log of all maintenance activities, including dates of oil changes, filter replacements, and inspections. This helps in tracking the generator’s condition and planning future maintenance.


Proper maintenance of your 20 kW generator ensures it operates efficiently and reliably when you need it most. Regular inspections, timely oil and filter changes, and professional servicing are key to prolonging its life.

For more information, expert advice, and to purchase maintenance parts, visit Americas Generators. We have a wide variety of 20kW Diesel Generator for Sale and can help you locate the best one for your needs.

Download Our Generator Maintenance Log

Keep your maintenance records organized with our comprehensive Generator Maintenance Log. Download it for free from our website and ensure your 20 kw generator is always in peak condition.

Download the Generator Maintenance Log

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