Rebirth of the Auto Giant

Chapter 253 The Importance of Daily Maintenance

Police Officer Wang Ming asked the other party to check the chronometer in the cab and found that the car he bought in February had run 1089 hours in four months, an average of 9 hours a day. The wheels were spinning non-stop.

You may also work overtime at night.

"The quality of our engines is reliable, and problems will not occur so quickly during the three-warranty period. Generally, there will be some minor problems during the three-warranty period," Wang Mingjing said.

"When did you first discover this problem?" Police Officer Wang Ming asked the driver.

"The day before yesterday, we found that the engine did not accelerate well enough when going uphill. According to your manual, the diesel filter was replaced at 1,000 hours. This happened after replacing the diesel filter." The driver said.

"Have you vented the air after replacing the filter core?" Wang Mingjing asked.

"What exhaust air?" the driver asked.

When Officer Wang Ming heard this, he covered his forehead and asked the driver to come down. At the same time, he also called the driver who was not working and explained to his two apprentices: "The so-called air exhaust means that the diesel pipeline is in the process of replacing the diesel filter core.

, air has entered the diesel pipeline. Air can be compressed

Yes, if the air in the pipeline is not discharged, then during the operation of the high-pressure oil pump, due to the presence of air, the oil supply will be insufficient, the oil supply of the water nozzle will be reduced, and the atomization will be poor, just like

It’s the same water we spray on our toothbrushes when we brush our teeth in the morning.”

"Poor atomization combined with insufficient fuel supply will cause the car to fail to start. You must remember this." Officer Wang Ming looked at his apprentice and then turned to look at the drivers.

This is the last time I came here for maintenance. Police Wang Ming did not hide these basic knowledge and took advantage of the opportunity to teach his apprentices to teach the drivers.

"There are two specific ways to remove air, one is the air evacuation method of high-pressure pipelines, and the other is the evacuation method of low-pressure pipelines." Wang Mingjing said.

"Master, what is a high-pressure pipeline and what is a low-pressure pipeline?" Duan Luanhong asked.

Although Duan Luanhong and Guo Yuquan were relatively familiar with engine installation, they did not know a lot of professional knowledge and were only familiar with the installation.

"The so-called high pressure and low pressure are separated by the high-pressure oil pump. Behind the high-pressure oil pump is the high-pressure pipeline. In front of the high-pressure oil pump, that is, from the fuel tank to the oil transfer pump is the low-pressure oil pipe. This is the oil transfer pump." Wang Mingjing pointed to the high-pressure oil pump.

The T-shaped part in front said, and after speaking, it started to rotate, and then the oil pump handle was bounced up by the spring.

"The function of the oil transfer pump is to provide a sufficient amount and a certain pressure of diesel fuel to the high-pressure injection pump. Its fuel delivery volume is 3 to 4 times the required fuel injection volume at full load..." Wang Mingjing introduced axial flow

The function of the pump is to pump oil.

"The low-pressure pipeline mainly includes the fuel tank, gas oil filter core, fine diesel oil filter core, and various oil pipes, and then the axial flow pump."

"The high-pressure pipeline is very simple. It consists of six metal hydraulic oil pipes and a water nozzle."

"If you want the engine to run normally, you must ensure that there is no air in the high-pressure and low-pressure pipes in the fuel supply system. Now I will teach you how to remove the air from the high- and low-pressure pipes." Wang Mingjing said.

"But before that, let me introduce something to you." After Wang Mingjing finished speaking, he removed the inlet pipe interface of the axial flow pump, took out a small filter net from it and said, "This is our Tang Dynasty

Compared with the current diesel quality of power engines, which is generally poor, in order to protect the engine, a small filter net is installed between the fine filter core and the axial flow pump to increase the filtration of the diesel.

As for protecting the high-pressure oil pump and water nozzle, you should also take a look at this when replacing the diesel filter element in the future. Use diesel to clean it. If these small things are blocked, it can easily cause insufficient fuel supply uphill." Wang

The police officer said, clean the small filter net with diesel and put it back, and then taught the two apprentices little by little how to remove the air from the high-pressure and low-pressure pipes.

"Everyone, did you hear clearly?" the obese man said anxiously, fearing that the drivers would not pay attention.

After hearing Wang Mingjing's explanation, I knew that this was the last time. It has been driven for more than a thousand hours now and the three-guarantee service has been issued. In the future, it will not be so easy to get the warranty from the manufacturer.

Police Officer Wang Ming doesn't care about these drivers. He has already said that if they don't understand, then there is nothing he can do. It has nothing to do with him.

The diesel filter element had just been replaced. Police Wang Ming bled out the air and started the car. The car was running normally.

"Okay." After finishing the fight, Wang Mingjing said.

"Thank you three masters, come and have a cigarette." The fat man knew that if there were not two apprentices present today, it would be impossible for Wang Mingjing to explain the technical work in such detail.

Officer Wang Ming lit a cigarette, and the other party politely put the newly opened cigarette into Officer Wang Ming's pocket. Officer Wang Ming pretended not to notice.

"You are a coal production unit and the environment is harsh. In particular, the air filter core must be taken out frequently to blow and shake." After Wang Mingjing finished speaking, he came to the iron bucket behind the cab where the air filter core was located and squatted down.

, pinched the downward-facing plastic elastic duckbill with his hand, and the plastic duckbill opened, and black soot fell down.

"Look at the air filter core. If there is so much dust inside the engine, it will cause wear of the piston rings and cylinder liners over time. As a result, the engine will become weak."

"Daily maintenance is very important. As long as you strictly follow my "Maintenance Manual", there will generally be no problems with our engines. It is often caused by you, the users, who have done adequate maintenance on a regular basis, and you always scold us that our engines are not good and the quality is unreliable.

, but I don’t know that it’s often caused by your lack of proper maintenance.”

"Daily maintenance is very important, especially the air filter element, diesel filter element and oil filter element. When it is time to replace it, I am reluctant to change it, and I am reluctant to part with the small money. In the end, the shutdown affects production, and I have to hire someone to repair the engine, and this

Accessories are not cheap either, and you yourself know which one is lighter and which is heavier." Police Officer Wang Ming asked Duan Luanhong to remove the air filter core and asked the driver to go aside and use the air pump to blow it with wind.

"Remember, when blowing, blow from the inside to the outside, and never wash it with water. Generally, an air filter core will no longer be usable after being blown ten times." Wang Mingjing warned.

"Have you heard what Master Wang said?" the fat man said, looking at the drivers.

Everyone nodded.

They can show off their power in front of others, but they cannot show off in front of professional factory masters like Wang Mingjing.

Not only can they drive, but they can also repair cars, but my skills are simply not enough in front of others.

"Your unit has four Tang Dynasty heavy trucks. I suggest you buy more maintenance parts from us, such as air filter cores, diesel filter cores and oil filter cores. You need to stock up on more goods. You are a coal company.

The air is worse than other places, so the air filter core needs to be replaced frequently, at least once a month, and taken out and blown at least once a week." Wang Mingjing said.

There is also a reason why Wang Mingjing wants to sell some accessories for the unit, but the starting point is also for the good of the other party.

"Okay, I'll report it to the factory director later and ask him to buy more goods from you."

"You should buy things from regular manufacturers through regular channels. Don't be greedy for cheap and buy those 'three noes' products from outside. The quality is very different. Products from regular manufacturers have been tested by us and obtained through scientific testing.

Result." Wang Mingjing reminded.

"Definitely, definitely. The three masters have worked hard. Let's go back. It's almost time. Let's go back for lunch." The matter was solved, and a lot of professional knowledge about maintenance was also taught. This time, these drivers also gained something.

It's not that small. If the same problem occurs in the future, he can solve it by himself. Thinking of this, the fat man happily sent the three people back to the guest house, took a bath, massaged them, and finally settled the wages of the three masters and the round trip.

fare.

Then we started eating and drinking.