Rebirth of the Auto Giant

Chapter 252 Troubleshooting

The Dashan Coal Mine Factory in Xuchang, Henan Province bought a total of four Tang Dynasty heavy-duty trucks. On the way up the mountain, I saw two heavy-duty trucks covered in black soot driving past. They looked dirty like beggars on the roadside.

"Don't you usually wash your car after work?" Duan Luanhong felt a little sorry when he saw that his car, which was clean when he produced it, was now so dirty.

"There are no workers who specialize in car washing. All these drivers are just bad guys. They don't wash cars either. There's nothing we can do about it."

"I told them, they said it's not their job to wash cars. They are drivers, not car washers. What can you do?" The obese man said helplessly while sitting in the passenger seat.

It would be better if it was a small car. For such a big heavy truck, car washing is a hard job. Today's drivers are all like men and are very arrogant. How can they wash your car with you?

"Such employees must be fired," Duan Luanhong said angrily.

"Master Duan, it's hard to find truck drivers now. If you fire them, who will drive? It's difficult. The drivers all look like men. All we have to do is bring them foot-washing water." The obese man heard this.

Duan Luanhong said helplessly with an indignant look.

"It's hard to find drivers who drive Jiefang. It shouldn't be hard to find the masters who drive our Tang Dynasty heavy trucks. Our Tang Chao heavy trucks are equipped with a hydraulic power steering system, which is easy to operate and much more convenient than Jiefang." Guo Yuquan said.

As a veteran employee in the engine installation workshop, Guo Yuquan is very familiar with all components of the engine. The engine is specially equipped with a steering pump, which is driven by the crankshaft through a V-belt. He knows this.

How did he know about these secret technical problems? It was probably because the driver in the transportation class didn't tell him. The other party introduced Duan Luanhong and Guo Yuquan to him about the operational advantages of Tang Dynasty heavy trucks and Jiefang, "Grandma, that's it.

It's so easy to drive, I thought it was the same as Jiefang. I'll talk to the factory manager later and see that they haven't washed the car yet." The fat man said through gritted teeth.

As a production worker, I see clean new cars coming off the production line every day. I have never seen such a dirty one. In the eyes of the two of them, every product that passes through their hands is like their own child.

Now that I heard the other party go back and tell the factory manager, and saw the scene of everyone washing cars every day in the future, I felt a little more comfortable.

Walking further up the mountain, we came to the coal mining site.

The ground is black, the house is black, even the branches high above are black, there is a dirty black world everywhere, everyone seems to have entered a black world and come to hell, a car covered with cloth

The Tang Dynasty heavy truck covered with thick black coal dust lay quietly at that time, like a seriously ill beggar lying on the roadside, waiting for charity from kindhearted people.

"That's the one." The fat man led the three people out of the Citroen CX20 and pointed at the heavy truck parked there.

Police Officer Wang Ming and his two apprentices walked around the car while making a visual inspection and said: "First, go around the car to see if there are any traces of oil leakage or water leakage outside the car." Police Officer Wang Ming said.

"Master, this car is covered by a thick layer of soot. What can you tell?" Duan Luanhong said.

"Yes, you can tell at a glance where there is water leakage and where there is no water leakage." After Wang Mingjing finished speaking, he pointed to a few points where failures are most likely to occur.

When people in the mine heard that the manufacturer had sent a master, they all came out to watch.

"Put up the cab." Officer Wang Ming led two apprentices to the front of the car and said loudly. A middle-aged man in his fifties, who seemed to be the driver of the car, took out the key and came to the back of the cab.

, insert an iron rod as thick as an adult's thumb into a card slot

It starts to shake, and the cab slowly lifts up and opens forward until it is at a 45-degree angle with the ground. With a click, the safety lock is locked. Then shake the handle in your hand and hear the hissing of the reverse flow valve starting.

The sound came, the resistance was eliminated, and then it stopped.

The engine of Tangchao heavy truck is under the cab. In order to facilitate the inspection of the engine, Tangchao heavy truck developed a cab lift specifically to lift the heavy cab.

Because it is covered by the cab, the soot all over the red Tang Dynasty engine is much cleaner than the one outside, but this is still relatively speaking.

The red five-pointed star on the upper rocker cover shines brightly like a ruby ​​in the black soot.

"Look at the outside of the engine, especially the cylinder head and body, exhaust branch pipe and cylinder head, as well as the water pump and steering pump, to see if there is any oil or water leakage." Wang Mingjing pointed at the engine and said.

"Master, isn't the exhaust pipe emitting exhaust gas? How come there is oil leakage?" Duan Luanhong on the side heard oil leaking from the exhaust pipe and asked doubtfully.

Guo Yuquan on the side also nodded, and the two looked at Police Wang Ming.

"It is true that the exhaust pipe emits exhaust gas. You are very clear about the internal structure of the engine. You also know that the exhaust pipe is connected with the combustion chamber inside. When the engine's cylinder liner and piston ring wear out, they will be greatly damaged.

When the water spray nozzle has poor atomization and incomplete combustion, the exhaust gas will be emitted

It is mixed with diesel oil that has not had time to burn and the engine oil that has come up from the oil pan. Over time, they will form a layer of oil and water that accumulates on the exhaust pipe wall. If the gasket at the contact point between the exhaust pipe and the cylinder head

If the sealing is not good, it will seep out from here, and it may also be visible through the vent hole.

Come." After Wang Mingjing finished speaking, he took his two apprentices to the exhaust vent at the back and touched it with his fingers. He looked at the black ash on his fingers and explained: "The normal black ash should be like this, without any trace of oil.

If there are oil stains, it means that the engine is not normal. You can also judge by smelling it, such as

If there is a diesel smell in it, it means poor atomization of the water spray nozzle. If it smells like engine oil, it means the engine's cylinder liner and piston rings are greatly worn..." The service department is currently short of manpower, and two people are Wang Shidian.

Generals, so Wang Mingjing also taught them attentively and gave them a brief talk.

It is rare to hear a master from the manufacturer explain professional knowledge. This opportunity is rare. If he hadn't taught his apprentices today, how would they have had such an opportunity? They wouldn't even have to think about it.

The drivers on the side also gathered around and listened carefully. Even the driver of the car in the cab stretched his head out of the cab and listened.

Police Officer Wang Ming briefly talked to his two apprentices about the failures that often occur in various external components during the maintenance process. After finishing the talk, everyone came to the cab to look at the engine. Police Officer Wang Ming said to the driver in the cab: "Start it."

Take a look."

"Okay." When the driver heard Wang Mingjing's words, he retracted his head.

"Dudu" started to change, released the key, and turned off again.

Officer Wang Ming pointed at the fan behind the water tank and said, "Look carefully at the fan and listen to the sound. Is it any different from the sound you heard when the car was shipped out of the factory and tested?" After that, he said to the driver in the cab: "Master,

Start it again."

After a few beeps, the key was released and the car stalled.

"Master, it sounds the same as when we tested it out of the factory."

"Well, nothing unusual."

Two people answered.

Wang Mingjing nodded, "The fan blades can rotate without any abnormal noise, which means that the crankshaft inside can rotate. At least it means that there is no problem in the engine, and the problem in the engine has been ruled out." Wang Mingjing said.