Road sweeper diesel engine maintenance knowledge

People mention diesel cars and always think of many problems such as heavy smoke, large noise, etc. In fact, with the development of the third generation of electronically controlled high pressure common rail injection systems in 2003, noise problems and diesel vibration problems have been greatly improved. The latest generation of diesel engines have the advantages of low noise and vibration, as well as good economy and power. The advantages of diesel vehicles are so prominent that our government has begun to support this project. Under such circumstances, the oil problem has also been solved. In general, the average diesel fuel consumption per kilometre is about 25% less than that of a petrol vehicle, and diesel fuel itself is cheaper. This way, diesel vehicles can save a lot of money. Few people know about the repair and maintenance of diesel road sweepers. If you are preparing to purchase a diesel road sweeper, the following content is a guide that the owner can't follow.

Note one

Diesel is a complex mixture of hydrocarbons, so it is more difficult to ignite, and it is a relatively safer choice as a fuel. The quality of diesel fuel is a guarantee for the operation of the diesel engine "Kang". Poor diesel oil containing moisture or impurities can cause serious damage to the high-pressure distribution pump. So for the user, the best way is to choose the gas station carefully and ask for the bill after refueling.

Heavy truck T5G sweeper

Diesel road sweepers must not add gasoline. If the gas station staff mistakes to add gasoline, the owner should not start the car. Contact the service station or 4S shop immediately to seek technical support.

Note two

The oil engine is very durable. The speed of the diesel engine is relatively low and the wear of the engine components is relatively reduced. In addition, the diesel engine does not have a high-pressure ignition system and a throttle valve body, so the engine has a low failure rate and can have a long service life of approximately 850,000. Kilometers. However, diesel engine oil requirements are also different from gasoline. It requires special oil. Moreover, its maintenance time limit is related to each manufacturer's engine and local oil products. For example, the Land Rover diesel engine, when the sulphur content of the fuel exceeds 0.7%, the oil replacement time is better not to exceed 6,000 kilometers. Of course, if the diesel is lower than this value, then the maintenance cycle can reach 12,000 kilometers. During use, the air filters, oil filters, and diesel filters are also required to be maintained in order to make full use of them.

Note three

The power of the diesel engine is very good, and it is also very fuel-efficient. The same displacement of the diesel engine is much higher than that of the gasoline engine, and the fuel consumption is also very low. However, the diesel engine must not exhaust the fuel and refuel it. In this case, the engine will be idle and air will be sucked in, which will cause severe engine damage.

Note four

The new type of diesel engine has a glow plug device. The indicator light indicates that the glow plug is heating. When the engine is cold, turn on the ignition switch. The light will be on and the indicator light will be off to start the engine. If the engine is in warm state, the light is off and the engine can be started directly. At the same time, the light also has an alarm function. During the driving process, the indicator light flashes, indicating that the engine management system has failed.

Note five

When the diesel road sweeper starts, do not step on the refueling pedal, and do not start too fast at the same time, and the speed should not be too high. When the engine is running at a high speed for a long time, do not immediately shut down the machine. It should continue to run at idle speed for about 2 minutes. After the temperature is lowered, it will shut down and avoid heat accumulation.

Note six

Finally, recognize a concept - Condensation. The temperature at which diesel begins to solidify when it loses its fluidity is called the freezing point. Condensation point is too high, easily causing blockage of the oil circuit at low temperatures. In China, the number of diesel fuel is set according to the condensation point. The level of condensation point is the main basis for the use of diesel. Therefore, appropriate diesel should be selected in different regions and seasons. The following are the applicable area temperatures for different diesel labels.

No. 10 light diesel is suitable for diesel engines with preheating equipment

No. 5 light diesel oil is suitable for use in areas where the minimum temperature with a risk rate of 10% is above 8°C.

No. 0 light diesel oil is suitable for use in areas with a minimum risk temperature of 10% above 4°C

-10 light diesel oil is suitable for use in areas with a minimum temperature of 10% and above -5°C

-20 light diesel oil is suitable for use in areas with a minimum temperature of 10% and above -14°C

-35 light diesel oil is suitable for use in areas with a minimum temperature of 10% and above -29°C

-No. 50 diesel oil is suitable for use in areas with a minimum temperature of 10% and above -44°C

Finally, I hope that everyone who drives the diesel vehicles on the road will treat your car well. To treat your car well is to make your driving more comfortable and comfortable.

Shock Absorber:

It is also called damper or insert,and metal absorber in some countries,to accelerate the attenuation frame and body vibration, to improve vehicle ride comfort.

When passing uneven road, although the shock absorption spring can filter road vibration, but the spring itself will have the reciprocating motion, and the Shock Absorber is used to inhibit this spring. The shock absorber is too soft, the body will jump up and down, the shock absorber is too hard will bring too much resistance, impede the normal work of the spring. In the modified process on the suspension system, shock absorber hard to collocation with hard spring, and spring the hardness and weight are closely related, so the heavier vehicles generally use the hard shock absorber and guiding device. The crankshaft torsional shock phase, to compete with the crankshaft (impact force by cylinder ignition and twist the crankshaft at Like).

Principle Of Operation:

The vehicle suspension system vibration due to the elastic element by the impact, in order to improve the ride comfort, suspension and elastic elements arranged in parallel for the attenuation of shock absorber, vibration, vehicle suspension system with shock absorber is hydraulic damper, its working principle is when the frame (or body) and between the axle vibration and relative rotation the shock absorber piston, move up and down, the oil shock absorber cavity will be repeated from one cavity through different pore flow into another cavity. The hole wall and the friction between oil and oil internal friction between the molecules of vibration damping force, so that the automobile vibration energy is converted into oil the heat absorbed by the shock absorber, and then emitted to the atmosphere. In the same oil channel section and factors such as damping force with the frame and the axle (or wheel) or the velocity of relative movement, and with oil viscosity.

all and the friction between oil and oil internal friction between the molecules of vibration damping force, so that the automobile vibration energy is converted into oil the heat absorbed by the shock absorber, and then emitted to the atmosphere. In the same oil channel section and factors such as damping force with the frame and the axle (or wheel) or the velocity of relative movement, and with oil viscosity.

Working conditions:

1. Room temperature 10 DEG -35 DEG range, relative humidity is less than 80%;

2. To be installed on a solid foundation or bench;

3. In the environment of absence from vibration;

4. The surrounding non corrosive medium;

5. The fluctuation range of the power supply voltage should not exceed the rated electric pressure + 10%;

6. The power of the testing machine should be grounded and reliable; frequency fluctuations should not exceed the rated frequency of 2%.

Shock Absorber

Rubber Absorber,Cars Shock Absorber,Metal Absorber,Adjustable Absorber

VESTA Motoring Ltd , https://www.vesta-industry.com