- Maintain regular service – Periodic maintenance is important for maximizing performance and extending the life of the engine. A suggested maintenance interval schedule is typically 50 hours, 250 hours, 500 hours, and 750 hours. Consult your Yanmar engine operation manual and or the operation manual of the product that houses the Yanmar engine for the recommended maintenance schedule.
- Warm it up and cool it down – Before engaging the engine in its primary task, be sure to idle the engine for a few minutes to ensure proper working order. However, diesel engines don’t need to be revved up high to get the maximum power and torque. After all, high revs means that other components need to spin faster, which puts more stress on bearings or belts. Conversely, after demanding usage, allow the engine to cool down before shutting it off. This helps prevent thermal stress and oil degradation, which can occur when the engine is abruptly shut down while still hot.
- Keep the cooling system efficient – The cooling system plays a vital role in preventing overheating and maintaining optimal engine temperature. Regularly inspect and flush the coolant system as recommended by the manufacturer to remove contaminants, prevent corrosion, and ensure efficient heat transfer. Additionally, inspect and replace worn or damaged hoses, belts, and radiator caps, as these components are crucial for proper coolant circulation and pressure regulation.
- Check those fluid levels – Regularly check and top up engine oil, coolant, transmission fluid, and other vital fluids as recommended by the Yanmar engine operation manual and/or that of the product that houses the Yanmar engine. Low fluid levels can lead to increased friction, overheating, and accelerated wear. Remember to use the recommended fluids and adhere to the correct specifications for your engine model.
- Above all, address issues quickly – Pay attention to warning lights, unusual noises, decreased performance, or changes in fuel efficiency. Addressing potential problems quickly can help reduce the potential for additional damage that can decrease the life of the diesel engine. Consult a certified Yanmar diesel engine technician, as warranted.
Have questions about general diesel engine maintenance, including options for parts and service for Yanmar industrial engines? Visit the Yanmar parts and service page for additional support: https://www.yanmar.com/us/support/