The so-called sudden change of working condition refers to the sudden abnormal phenomenon of mixing truck working condition, which is a common fault symptom. Now let's talk about the relevant content.
For example, it is difficult to start or even fail to start after the mixer stops suddenly; The power of the mixer truck suddenly drops during driving, and the driving is weak; When driving, the brake fails or suddenly deviates, or even fails. This kind of fault symptom is obvious and easy to detect.
Abnormal noise. The abnormal sound of the mixer truck during driving is the "alarm" of the mixer truck fault. The driver should be aware that there is something wrong with the mixer. He should immediately stop the mixer truck for inspection. He must not let the mixer "work with disease".
The smoke exhaust color is abnormal. During the operation of the mixer truck, the main components of normal combustion products should be carbon dioxide and a small amount of water vapor. If the mixing car burns abnormally, the exhaust gas will be mixed with incompletely burned carbon particles, hydrocarbons, carbon monoxide and a large amount of water vapor.
In addition, there are nitrogen oxides. At this time, the color of exhaust gas may turn black, blue or white, which means that the color of exhaust smoke is abnormal. For gasoline engines, there should be no obvious smoke during normal exhaust.
However, when the lubricating oil moves upward to the cylinder, the tail gas is blue; When the combustion is incomplete, the tail gas is black; When oil and water are mixed, the tail gas is white.
"Overheating and high temperature" often appear in the transmission, drive axle, main reducer, differential and brake assembly of concrete mixer truck. For example, when the engine of the mixer truck is overheated, it is mainly the problem of the cooling system, insufficient coolant or the pump does not work; When the transmission and drive axle are overheated, the main reason is insufficient lubricating oil;
When the brake overheats, it is mainly because the brake shoe does not work and returns. Sometimes, the above phenomena will be directly reflected by the warning light on the instrument panel, which requires the driver to observe carefully when driving, and the external temperature can also be measured by hand.
Leakage refers to the leakage of engine fuel, lubricating oil (or gear oil), brake fluid (or compressed air) and power steering system oil. This is also an obvious fault symptom, which can be found by careful observation.
For example, when compressed air leaks, the sound of air leakage can be clearly heard. Excessive consumption of fuel and lubricating oil indicates that the technical condition of the mixer truck has deteriorated and malfunctioned.
In the face of sudden changes in the working condition of the mixer truck, it is the right behavior to diagnose and deal with it in advance. You should have a good understanding of this operation. For more information, please visit the website http://www.zkzdsljbc.com Consult.