When changing the oil of a small diesel generator, it is necessary to follow standardized procedures and pay attention to key points to ensure safe operation and extend the life of the small diesel generator.
I. Preparations and Safety Before Changing the Oil of a small diesel generator
1. Ensure the status of the small diesel generator: Before changing the oil, make sure the small diesel generator has stopped running and has fully cooled down to avoid the risk of burns. Some procedures recommend starting the engine for a few minutes to raise the oil temperature, making the old oil flow better for easier drainage, but you should still be cautious of high-temperature components during operation.
2. Prepare tools and materials: You need to prepare new oil for the small diesel generator, a new oil filter, suitable wrenches, an oil pan for collecting old oil, a funnel, and cleaning cloths, among other tools.
3. Choose qualified oil: You must use oil that meets the model and quality standards specified by the equipment manufacturer. Do not use expired or inferior oil. The oil type should be selected according to the ambient temperature, the operating conditions of the small diesel generator, and the manufacturer's recommendations.
II. Draining Old Oil from Small Diesel Generators and Replacing Filters
1. Draining old oil from the small diesel generator: Place an oil pan under the drain screw of the small diesel generator's oil sump, unscrew the drain screw, and let the old oil completely drain out. Make sure the old oil is fully drained.
2. Inspecting and replacing seals: After draining the oil from the small diesel generator, check whether the sealing ring and gasket of the drain screw are intact, and replace them immediately if damaged.
3. Replacing the oil filter: Use a wrench to remove the old oil filter of the small diesel generator. Before installing the new filter, apply a little new oil to its rubber sealing ring, then screw it on manually according to the specified requirements to ensure a good seal.
III. Adding New Engine Oil and Subsequent Checks for Small Diesel Generators
1. Add the appropriate amount of new engine oil: After retightening the drain screw, add the specified type of new engine oil through the oil filling port of the small diesel generator. The amount added should refer to the oil level gauge, usually ensuring that the oil level reaches the upper part of the gauge grid (near the maximum limit), and it should not be too much or too little.
2. Start-up check: After adding the oil, start the small diesel generator and run it for a short period (usually a few minutes) to check whether the oil pressure is normal, and carefully observe for leaks around the drain screw and the oil filter installation.
3. Recheck and cleanup: After shutting down the small diesel generator, wait for a moment and recheck the oil level, topping up if necessary. Finally, clean the work area and properly dispose of the used oil and old filters.
IV. The oil change cycle for small diesel generators is not fixed and should be determined based on equipment usage intensity, oil type, and working environment.
1. New machine or after major overhaul: The oil must be changed after the first 50 hours of operation for a small diesel generator.
2. Regular change: For ordinary mineral oil, it is recommended to change every 200-300 hours of operation or every 3 months; semi-synthetic oil can be extended to 300-400 hours; fully synthetic oil can last more than 500 hours. Under harsh conditions such as high temperature, heavy load, and dusty environments, the change interval should be shortened.
3. Synchronized replacement: When changing the oil of a small diesel generator, it is recommended to replace the oil filter at the same time.
V. The Role of Engine Oil in Small Diesel Generators
1. Lubrication and Wear Reduction: Engine oil forms a film on the surfaces of various moving parts inside a small diesel generator, reducing direct contact and friction between metal components, thereby lowering wear and power loss.
2. Cooling and Heat Dissipation: As engine oil circulates inside the small diesel generator, it can absorb and carry away heat generated by friction, helping to cool the engine. This is particularly important for parts far from the cooling system, such as pistons.
3. Cleaning and Dispersion: Engine oil can wash away impurities like carbon deposits, sludge, and metal particles generated during the operation of a small diesel generator, suspending them in the oil and returning them to the oil sump through circulation, thereby maintaining internal engine cleanliness.
4. Sealing and Leak Prevention: Engine oil can form an effective sealing film between components such as piston rings and cylinder walls in a small diesel generator, preventing high-pressure gases in the combustion chamber from leaking and stopping external contaminants from entering.
5. Rust and Corrosion Prevention: Engine oil adheres to the metal surfaces of components in a small diesel generator, forming a protective film that isolates moisture, air, and acidic substances, preventing oxidation and rust.
VI. Huaquan Power is a professional manufacturer of small diesel generators
Huaquan Power was established in 2010 and is located in Weifang, Shandong. The company's industries involve power generation equipment, new energy storage equipment, high and low voltage complete sets of equipment, power engineering, and other fields.
Huaquan Power products apply multiple technologies such as intelligent monitoring, brushless excitation, low emissions, and noise reduction. In manufacturing, the company is based on lean management, combining informatization and industrialization, and has introduced intelligent equipment such as fully automated spraying lines, industrial welding robots, and AGV intelligent transportation platforms, with full-process production capabilities including cutting, forming, machining, welding, painting, and installation and commissioning.
Huaquan Power provides a service system covering pre-sales, in-sales, and after-sales. The after-sales service network has a wide coverage and responds quickly, allowing users to have peace of mind.
More information about small diesel generator: http://www.fdjjg.com/
Sales hotline: +86 15905360672
WeChat customer service: +86 15905360672
Email address: huaquan@huaquanpower.com
Official website: https://www.huaquanpower.com
Production Base: No. 11666 Guting Street, Economic Development Zone, Weifang City, Shandong Province
Company Name：SHANDONG HUAQUAN POWER CO.,LTD
