PS: See the exclusive story behind "Super Military Industry Overlord", listen to your more suggestions for the novel, pay attention to the starting point Chinese network public account (WeChat add friends - add public account - enter qdread), tell me quietly!

T-4178A single-axis barrel drilling and boring machine is a special machine tool for processing gun barrels, mainly for barrel drilling and reaming, is a high-precision machine tool, Lu Jiadong often came into contact with this machine tool when he was practicing in a military factory, so he is very familiar with it.

Of course, Chen Ziyue and Chen Zihao, brothers and sisters, didn't know about these things, they just watched Lu Jiadong go straight to the side of the machine, looked left and right, touched a few parts with their hands, and then put on the gloves on the console, picked up the wrench, and began to disassemble the spindle sleeve cover.

"Lu Jiadong, you better don't get it, I almost had an accident just now, I'm afraid" Chen Ziyue didn't finish speaking, but it could be seen from her eyes that she didn't believe that Lu Jiadong could fix it.

"Yes, it's better to find Master Li to repair it tomorrow as my sister said!" Although Lu Jiadong said the model of the machine tool, it does not mean that it can be repaired, so when Chen Ziyue finished speaking, Chen Zihao also came up to persuade.

Looking at the suspicious eyes of the two, Lu Jiadong stopped what he was doing and smiled slightly: "Is this machine a spindle sleeve that moves vertically and is stuck when it is hot?"

Listening to Lu Jiadong's words, Chen Zihao's eyes suddenly widened, his mouth was so open that he could fit into a fist, and he looked at Lu Jiadong incredulously.

Chen Ziyue looked at his brother's expression, then looked at Lu Jiadong with a calm smile, blinked his eyes and asked, "Brother, is he right?"

"Yes!" Chen Zihao came back to his senses: "Yes, it's so right, how do you know?"

"It's actually very simple!" Lu Jiadong still smiled on his face, and said, taking off the spindle sleeve cover: "I saw that when you operated the machine just now, the vertical movement of the spindle sleeve made a clicking sound, indicating that this direction is not running smoothly. ”

Lu Jiadong said as he twisted the screws inside with a wrench: "I came over and touched the spindle just now, and found that the temperature was a little high, so I think this should be the problem." ”

In their memory, the people who judged the machine defects so quickly and accurately were only the old fitter Master Liao of their factory, there is a saying in the machining workshop, three months out of a good turner, three years out of a good fitter, three years may not come out of a good fitter, it can be seen that the fitter technology is difficult to master, but looking at Lu Jiadong is also ten years old, how to look at it is an apprentice, how can there be such a good technology?

Seeing his brother's expression, Chen Ziyue knew that Lu Jiadong was right again, looking at his skillful disassembly machinery and quickly and accurately judging the cause of the failure, Chen Ziyue had confidence in Lu Jiadong, so he asked:

"Lu Jiadong, do you really know how to repair machines?"

"A little understanding, a little understanding!" Lu Jiadong responded modestly, easily dismantled two more parts, then took off his gloves, and touched the gears of the spindle movement twice with his hands, the oily grease was sticky all over his hands, seeing this, Lu Jiadong couldn't help frowning, then put the grease on his nose and smelled it, then turned his head to Chen Zihao and asked:

"Was this machine serviced a few days ago?"

"Yes!"

"What kind of grease is used?" Lu Jiadong continued.

"Special 5, what's wrong?"

"No wonder!" Lu Jiadong said and wiped the oil stains on his hands with a rag: "Your grease is not properly selected, and you add too much grease during maintenance, which makes the temperature rise of the spindle at high speed and produces jamming!"

"How is it possible? The spindle sleeve is tightened, isn't it because there is less grease, how can the parts work without grease?" Chen Zihao frowned and asked his own question.

Lu Jiadong looked at Chen Zihao, with a calm smile on his face: "The usual thinking is like this, the parts need to be clamped with lubricating oil or grease, but some machines, grease can not be put too much, especially for this kind of high-speed moving parts, there is a lot of heat when running at high speed, and the heat dissipation of grease is very bad, if you add too much, it will make the temperature of the machine parts too high." ”

Chen Zihao lowered his head and pondered: "Well, yes, the master said so before, since that's the case, what should I do?" Chen Zihao lowered his head,

"Easy to do!" Lu Jiadong replied confidently and crisply: "Do you have special 7 grease here?"

"Yes!"

"Then take it over, remove the moving parts, remove the previous grease, and reapply it with Special 7, but remember, only apply a thin layer. ”

"Is this okay?" Chen Zihao asked.

"Don't worry!" Lu Jiadong replied confidently, after listening to Lu Jiadong's words, Chen Zihao did not let go of the doubts in his heart, although from the first time he saw Lu Jiadong, the eighteen-year-old boy had given him too many surprises, from flying to save his sister to accurately saying the model of the machine tool, from quickly and accurately judging the failure of the machine tool to the use of lubricating grease.

But this doesn't mean that such a complicated extra bed can be repaired, but he listened to what Lu Jiadong said made some sense, and in the case that he didn't have any good methods, it was not impossible to let Lu Jiadong try, so he handed the wrench to Lu Jiadong.

Lu Jiadong took the wrench and began to disassemble the machine tool, Chen Ziyue couldn't help but be a little worried because of the previous incident, so he asked his brother in a low voice:

"Brother, do you think Lu Jiadong can do it?"

"I don't know much about this!" After listening to Chen Zihao's words, Chen Ziyue's worries were even more than a few, she knew very well that her brother was known for his expertise in technology, even if several masters in the factory sometimes couldn't compare to him, now he can't repair the machine, is this new Lu Jiadong really good?

Lu Jiadong didn't know what the Chen brothers and sisters thought, at this time, he was concentrating on disassembling the machine, looking at the gears and connecting rods coated with a thick layer of grease, Lu Jiadong knew that his judgment was correct, so he picked up the cloth to clean off the special 5 grease on these moving parts, applied a thin layer of special 7 grease, and then reinstalled the machine.

Then he took the steel pipe that jumped before, put it in the card slot of the console, and locked it with a fixing button, then he turned back to Chen Zihao and said:

"Your fixing button was not locked just now, and then the feeding rod of the operating table was inadvertently twisted by you, causing the drill bit to be misaligned with the blank, resulting in a dangerous situation!"

"Hehe, I was a little anxious!" Chen Zihao scratched his head and explained embarrassedly.

Lu Jiadong did not continue, after all, the lesson that Chen Zihao has learned in this dangerous situation, if he continues to be held accountable for no reason, it may have a reversive effect, so Lu Jiadong turned around after saying it and operated the machine tool seriously, his operation method was no different from Chen Zihao before, but he held the rotary handle of the console very firmly.

"Get out of the way!"

"Lu Jiadong, be careful!" Chen Zihao instructed, and then pulled Chen Ziyue aside.

Lu Jiadong did not answer, but with a calm smile after aligning the drill bit with the blank, the right hand operated the spindle sleeve, slowly falling vertically, during which the operation was very smooth, and the uninteresting clamping phenomenon occurred, as the prop touched the blank, a turbid cutting fluid mixed with metal shredding, gushing out, with the spindle slowly falling, the drilling of a barrel was completed.

The Chen brothers and sisters standing next to them didn't expect Lu Jiadong to repair the machine so easily, in their impression, only Master Liao, the gold medal fitter in the factory, has such ability, but that Master Li is almost 60 years old, and this Lu Jiadong in front of him is not even twenty years old!

Lu Jiadong didn't see the surprised expressions of the Chen brothers and sisters because his attention was on the machine tool, but he felt that the two of them had not reacted for a long time, so he asked, "The machine tool is repaired, don't you try it?"

"So fast!" After listening to Lu Jiadong's question, the two came to their senses, so the two brothers and sisters walked to the machine tool, started the machine tool, and successfully completed the processing of a blank according to Lu Jiadong's operation steps just now.

"You really repaired the machine tool, Lu Jiadong, you are so good!" Chen Ziyue turned off the machine tool switch and praised excitedly.

Chen Zihao on the side also nodded: "The gold medal master of our factory is nothing more than that!"

"It's just a grease problem, there's nothing remarkable!" Lu Jiadong waved his hand nonchalantly: "You may be in a hurry, or the authorities are confused, and it is only a matter of time before it is repaired!"

Lu Jiadong really felt that this was not a problem, after all, when he was an intern in the military factory in the later world, he was exposed to the use of grease and the maintenance of getting up, such a small technical problem was not a matter for him at all, but it was not a matter in the eyes of Lu Jiadong, but it was indeed a profound technical problem in the eyes of the Chen brothers and sisters, and what Lu Jiadong said made the brothers and sisters think that this was Lu Jiadong's modest performance, and therefore their good impression of him was a little more.

"Jiadong, you don't have to be modest, what I Chen Zihao admires most is a person with excellent skills, besides, you saved my sister today, don't say anything, go to my house tonight, I'll invite you to dinner!"

"This"

"What's the matter, isn't it convenient?" Chen Ziyue saw that Lu Jiadong was a little embarrassed, so he stepped forward and asked.

"No!" Lu Jiadong replied with a smile: "It's just that the friend who came with me probably has already prepared a meal, and I'm afraid if I won't go."

"So that's the case, that's good, tomorrow happens to be Sunday, then I will ask Xiaoyue to find you, and then you and your friends will come to my house together!" Chen Zihao did not make it difficult for a strong man: "By the way, you live in a staff dormitory, right?"

"Yes, live on the second floor, room 206!"

"Well, that's it!"

"Okay!" Lu Jiadong replied, then said goodbye to the Chen brothers and sisters, and hurriedly walked towards the dormitory.