Genius remembers in a second [Aishang Novel Network biquge.info] to provide you with wonderful novels to read.

However, unfortunately, when they dismantled to the main pressure oil pump, Peng Huading's current excavator problem is not simply the inaccurate setting of the relief valve, not only by adjusting the hydraulic oil pressure control spring, but the key to the failure of the excavator is the internal leakage of the main pressure oil pump.

Because the material is not up to standard, and the processing quality of the oil pump is not good, under the long-term mutual friction, there is a large gap between the plunger and the cylinder body of the plunger oil pump, and the high-pressure oil continues to leak from these gaps, and the oil pressure cannot reach the rated oil pressure, so it is naturally impossible to drive the main oil cylinder to drive the grab to work normally.

No matter how high Peng Huading's technology is, it is impossible to repair the plunger and pump body with wrenches and screwdrivers that are too worn out of the plunger pump. To completely solve the problem of the excavator, the only way to replace the plunger oil pump, or use a precision machine tool to turn and boring the plunger and cylinder block.

Peng Huading looked at the piston pump and said to Chai Xiande's father: "Uncle Chai, the problem is inside the piston pump, either replace the piston pump, or find a machinery factory to repair the piston pump." ......, I suggest that you replace the piston pump, which is more reliable and can be repaired quickly. ”

The three of them glanced at each other, and Chai Xiande immediately said, "Dad, I think what Peng Huading said is right, just change the pump." I'm going to go to the city on a motorcycle now, trying to get the piston pump back overnight, and help us install it while Peng Huading is here. ”

"That's right! Right! I'll go with you, we'll buy it overnight and replace it, and by the way, buy a barrel of hydraulic oil and come back. Chai Xiande's uncle immediately chimed in, "Xiao Peng, you go home and sleep first, and then come back to trouble you when we buy a piston pump." ”

If Peng Huading can command them to replace them with new ones, then their cost is almost only the money of the piston pump, which can save a lot of money. If it is sent to the city for repair, the transportation and labor costs far exceed the price of the piston pump.

Soon, Chai Xiande and his uncle rode a motorcycle to Yuejiang City overnight, and Peng Huading also returned home to sleep.

Being able to help his classmates solve problems, Peng Huading was physically and mentally tired, but he was still very happy, and more importantly, through this maintenance, he had a more specific and vivid understanding of domestic machinery and equipment, and he showed that he had a lot to do in this field.

At six o'clock in the morning, Peng Huading got up and finished washing, and when he saw that Chai Xiande had not come over, he told his grandmother that he had gone to work in the city, and then went out and walked towards the construction site.

Halfway through, I happened to meet Chai Xiande, whose eyes were full of bloodshots.

Seeing Peng Huading coming over by himself, Chai Xiande was very moved, and while taking Peng Huading to the construction site, he told him about the purchase of the piston pump. The reason why he bought the piston pump and hydraulic oil back was that the designated maintenance point in the city deliberately made it difficult, and it took a long time for the other party to open the door. Then they said that they did not ask their master to repair it, they did not dare to sell the piston pump, and said that they did not guarantee the quality of the piston pump or something.

When Chai Xiande was furious and turned around to buy the plunger pump elsewhere, the designated maintenance point muttered and sold the piston pump to them.

Peng Huading didn't have too much resentment and anger in his heart, although the people at the designated maintenance point were unreasonable, they were still excusable, and they also earned hard-earned money, which was much more noble than Li Guoliang, Wang Guosheng and other moths.

However, in front of Chai Xiande, Peng Huading would not say this, just smiled and did not participate in the comments.

With the plunger pump, the next thing is much easier, and under the command of Peng Huading, the three of them are working again. After the piston pump was installed and the hydraulic oil circuit was checked, Peng Huading arranged for Chai Xiande's father to go up for a test run.

Father Chai climbed into the cab nervously, gritted his teeth, and then activated the motivation.

When he pulls the lever of the grab back, the grab lifts up gently, and when the lever is pushed forward, the grapple gently descends again.

When he saw the claws on the grab digging into the dirt and continuing to drill down, Chai Xiande, Chai Xiande's uncle and Peng Huading, who were standing by and watching, all shouted happily: "It's powerful!" It's powerful! ”

The grapple quickly grabbed a bucket of dirt, then hooked it in, and then slowly rose ......, and the motive also made a roar full of loads, and the sound was full of power.

Although it is only an ordinary excavator repaired, Peng Huading's sense of satisfaction is incomparable, and the most important thing is that through this maintenance, he has a specific understanding of the processing technology of construction machinery on the current market.

Previously, Peng Huading's understanding of the processing technology in the market mainly came from books and the Internet, and it was not so intuitive and in-depth. Mastering the current processing technology and level is of great help to him in designing automatic production lines and processing gears.

In the gratitude of the Chai family, Peng Huading left the construction site, and the rest of the installation work was completed by themselves, and he had to rush back to the city to work in the office as much as possible.

has promised Wang Guosheng not to resign and leave for the time being, and also promised his grandmother that he will work with peace of mind, so he has to hold on for a few more days until the order from the French VoRou company arrives, or wait for Wang Guosheng to be arrested by the relevant departments.

When he arrived at the office, it had been more than an hour past the working hours, and he was a little uneasy, but he was worried about himself, and there was no one in the office to take care of things.

This chaotic situation in the office is a beautiful thing for Peng Huading, who just used this time to do his own thing with confidence and boldness, which can be used to design an automated production line and prepare for the next step of expanding production - if the French company determines that the five gears are qualified, a large number of orders may come in the future, and he has to expand the scale of production, which he cannot cope with by his own manual work, which is tiring, dangerous and easy to leak.

He thinks about how to find business opportunities in construction machinery such as excavators. It can be seen from last night's maintenance that the quality of those wear parts in the excavator is not very good, if he can produce wear-resistant parts, it can undoubtedly greatly improve the service life of construction machinery, improve the competitiveness of products, and be beneficial to users and manufacturers, they must be welcome.

In other words, he can find a business in improving the wear resistance of parts. And the method he used to heat treat gears yesterday can be used for heat treatment of other parts with a slight change.

……

Peng Huading can calmly accept the chaotic situation in the office, but others are unwilling, after all, the employees of the office rely on Huakang Company to get their wages to eat, and no one wants it to be chaotic.

The most depressed are naturally Wang Jilin and Huang Huaijiang, who caused the current chaotic situation, both of them fought each other in order to be the leader of the office, but the result deviated from the expectations of the two of them:

After the headquarters of Huakang Company learned of the contradiction between Wang Jilin and Huang Huaijiang, as the leader of the headquarters who took the interests of the company into comprehensive consideration, he naturally would not be too partial to one of them. Although the company's headquarters soon made a decision to adjust the leadership team of the Yuejiang office, which was what Wang Jilin and Huang Huaijiang were looking forward to, Wang Jilin did not wait for the headquarters to appoint him as the director of the office, but Huang Huaijiang waited for a notice to transfer him to the Shao'an office to continue to be the deputy director.

Both of them were not in a good mood, and they both went to Nanshan City to find their own backers to do activities, and threw the work of the office aside.

Huang Huaijiang's efforts yielded no results, and the people at the headquarters told him that he must go to his new post unconditionally, otherwise he would be dismissed. And Wang Jilin is not much better, thinking that he can become a leader if he moves, but the information he heard gave him a slap in the face, not only will he not be a leader, but Peng Huading, who he doesn't like, will be promoted!

"Ahh Wang Jilin was dumbfounded, "The headquarters decided to promote Peng Huading, who had just joined the company and had not been working for a few days? ”