1. Pay attention to the oil pressure

When the diesel engine is working, the oil pump presses the lubricating oil to the friction surface of the machine parts and forms an oil film, so that the parts that rub with each other do not have direct contact, thereby reducing friction loss. Use should always pay attention to the oil pressure, when the oil pressure is too low, should immediately stop for inspection and maintenance, oil pressure is too high will also destroy the oil film and increase wear, should also find out the cause of timely exclusion.

2. Pay attention to temperature changes

The temperature of the diesel engine is mainly reflected in the temperature of the cooling water and the temperature of the lubricating oil. The water temperature when the forced circulation diesel engine is working should be kept between 70 and 90 degrees Celsius, and the oil temperature should be kept between 70 and 80 degrees Celsius. If it is too high, it will damage the cylinder gasket, piston and piston ring, reduce the oil viscosity and reduce the lubrication performance; If it is too low, Fuel Consumption and smoke exhaust will increase. Therefore, the work should always pay attention to the temperature of the cooling water, abnormal should be eliminated in time.

3. Pay attention to the maintenance of the running-in period

New or overhauled diesel engines must be run in. Because the diesel engine is matched with each other, the surface of the parts moving with each other, although there is a certain precision and finish, but from the micro point of view there is still uneven, and the matching gap is small. The purpose of running-in is to make the moving surface of each other more smooth through running-in, the gap is more reasonable, and the early wear is prevented. The method of running-in is no-load operation for 50 hours, during which the speed should change from low to high, the load should change from small to large, and the overload operation of excess speed is not allowed. After the running-in, the oil in the Crankshaft box must be replaced, and the Crankshaft box and the lubricating oil routes must be cleaned, and the oil filter element must be cleaned or replaced.

4. Strengthen maintenance and maintenance

Maintenance and maintenance is the key to prolong the service life of diesel engines. Should do daily maintenance, regular maintenance, frequent inspection, focus on checking whether the cooling water, oil is enough, the technical status of the diesel engine is good, if there is a fault should be eliminated in time. The "three filters" must be clean and smooth, and when working in a dusty environment in the countryside, the air filter should be cleaned once a day. Other maintenance should also be carried out in accordance with the prescribed procedures.

5. Do not slam the throttle

Hot car of diesel engine slamming throttle will lead to violent vibration and increase the friction of each matching surface. Cold car boom throttle, because the viscosity of the lubricating oil is not easy to flow, will aggravate the friction damage of the machinery, and may cause serious accidents such as cylinder pulling and burning tile holding shaft in serious cases. Therefore, whether it is a cold car or a hot car, or whether it is a low speed, it is necessary to smoothly refuel, and do not continuously blast the accelerator.

6. Shift gears correctly while driving

In order to avoid the long-term high-speed operation of the diesel engine to aggravate the friction damage, should be timely according to the road conditions, avoid high-speed low-gear work. Even if it is uphill and washboard road, it is necessary to choose the appropriate gear, and do not let the engine move at high speed under insufficient load.

7. It is strictly prohibited to start and run at low temperature

Diesel engine in the water temperature above 70 degrees Celsius working state, its wear will be aggravated. Starting at low temperatures, the wear is more serious, if the start preheating at 2 degrees Celsius, the wear is equivalent to driving 50 kilometers. Therefore, the winter starting must be heated water preheating, it is best to park in the room overnight, after starting do not run for a long time at low temperature.

8. The correct choice of fuel

The properties of diesel oil are mainly determined by cetane number and impurities. If the choice is not appropriate, it is easy to break down during work, so that the impact surface of the machine parts will be exacerbated by wear. When using, the corresponding type of diesel should be selected according to the Compression Ratio and season of the diesel engine to reduce the friction loss and corrosion of the parts.

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