Free Days in Siheyuan

Chapter 458
The simulated classroom can not only provide him with more learning time than others, but also simulate various machine failures for him, allowing him to practice one by one until conditioned reflexes are formed.

But obviously Technician Tian didn't know anything about it, so he was about to face Zhang Yu's "slap in the face".

In the next hour, Technician Tian watched Zhang Yu in a daze after checking the production line up and down, and then conveniently got under the machine, unscrewed a few screws, and removed a bearing.

Zhang Yu took the bearing to the side of Director Wang, pointed to the bearing and said: "There is a problem with the bearing. It is either that the sealing sleeve and the fixing bolt are loose, or the bearing gland. There is a gap in the sleeve, and impurities The lubricating oil entering the bearing housing from these gaps becomes dirty, resulting in poor lubrication, which eventually leads to bearing failure.

After a long time of failure, it will cause the bearing to wear and increase, so it will become like this. "

Speaking of this, Zhang Yu sighed, looking at the severely worn bearings in front of him, this is not a big problem in the first place, in future generations, just replace a bearing directly.

But now, it is very difficult. He has seen that during the disassembly process just now, there is no production condition for this kind of bearing in China.

Therefore, if you want to replace the bearings, you can only rely on the hands of the masters. The most likely place to manufacture this kind of bearings is the Hongxing Steel Rolling Works.

Moreover, after overhauling so many machines, Zhang Yu also discovered a problem existing in many domestic factories, that is, these technicians have no concept of routine maintenance of machines at all.

Usually when the machine is broken and the machine is being repaired, things like lubricating oil will be replaced.

So over time, there will always be some small problems in those machines, and if these small problems accumulate too much, it will cause excessive wear of some parts of the machine and affect the operation of the machine.

Looking at the bearing in Zhang Yu's hand, Technician Tian slapped his brain hard. Why didn't he think of checking the bearing for any problem?

Not only did he not think of this problem, but Lao Ma also didn't think that the two old technicians could not keep up with a little baby in terms of machine maintenance. How could he accept this fact.

Seeing the disbelief on Technician Tian's face, the factory director's secretary smiled, and he said that he should not be underestimated. Although Master Zhang is young, he is very capable.

But now is not the time to worry about this. The most important thing for them now is to repair this production line.

Zhang Yu has already found the problem, so the next thing will be easy to solve.

Because Master Xu was still in the hospital, Director Wang was worried about other people getting involved, so the job of going to the Red Star Rolling Mill to seek support fell back to Zhang Yu.After all, whether he admits it or not, in the eyes of everyone, Zhang Yu is a person from the Red Star Rolling Mill. He has some face in the Red Star Rolling Mill, and it should be easier than them to ask for help.

Due to the urgency of time, in order not to affect tomorrow's production, Zhang Yu and Director Wang had no time to take a breather, so they returned to the Red Star Rolling Plant by car.

By the time they returned to the Red Star Rolling Plant, it was already dark and most of the workers had already left work.

After learning about their intentions, Factory Manager Yang sent someone to invite some old masters temporarily, and troubled them to work on the night shift.

For this kind of thing, the old masters of the Red Star Rolling Mill are already used to it. As one of the few eighth-level fitters, they often have to deal with the help of the factory below, so after learning their intentions, the few old masters After discussing for a while, they went back to their workstations and went about their own tasks according to the division of labor.

While Zhang Yu and Director Wang were anxiously waiting for the results of the masters, Zhao Wenzhuo finally got off work. He looked at the contents of the letter left by Zhang Yu, and the relaxed expression on his face was gradually replaced by seriousness. , especially after seeing the part of Zhang Yu's guess, he stood up abruptly, picked up the police uniform beside him, and rushed back to the police station without stopping.

After returning to the police station, he quickly summoned all the police officers he could muster, and announced the news he got from Zhang Yu. Of course, he blurred Zhang Yu's role in it, and only replaced Zhang Yu with an informant. Yu.

However, those of them who are policemen have a few unknown informants under their hands. Regarding the source of Zhao Wenzhuo's news, they only thought that a certain informant discovered it, and they did not trace the source.

After Zhao Wenzhuo and his party finished the meeting, they deployed control at the waste collection station overnight.

When Zhang Yu was in a daze and was about to fall asleep, Zhao Wenzhuo was lying in the room of the waste collection station with someone, looking at the place Zhang Yu mentioned with burning eyes.

"Crack!" After killing another mosquito, a member of the team couldn't help moving his body, moved to Zhao Wenzhuo's side, and asked in a low voice, "Brother Zhao, do you think they will really come over tonight?"

"Not sure, but we have provided conditions for those people to come over."

He first found someone to investigate, and after making sure that the group of people were still staring at the waste collection station.

In order to make those people relax their vigilance, and to arouse their sense of urgency, they found the old man and his direct leaders just now, and asked them to act in this scene,
To let them know that in order to arrange work for their relatives, a certain important person has taken a fancy to the job at the scrap yard.

On the grounds that the janitor at the waste collection station is too old to take care of him, and the waste collection station needs someone on the night shift as an excuse, two young men were abruptly placed there. For this reason, he wanted his son to take over his job The old janitor even quarreled with the leader above him.

In this way, regardless of whether those people act tonight, the initiative is in their hands.

If those people act tonight, they can catch them.

If they don't act, they can also use this scene to arrange for two unfamiliar policemen to enter the scrap yard to act as the so-called leading relatives.

"Oh." The policeman was a little disappointed after hearing Zhao Wenzhe's words, but his attention was quickly attracted by the mosquito.

The area of ​​this waste collection station is not small, there are only a few houses, not to mention the huge yard.

In such a big place, only the janitor works alone, and he is not young, so it is naturally impossible to clean it every day.In addition, this place is a waste collection station, and waste products are put into it every day, and those things will inevitably become dirty, so after a long time, there will naturally be many hygienic corners in the waste collection station, and naturally there will be no fewer mosquitoes inside. .

(End of this chapter)