"Technician Guo, if we calculate according to the charging standards of after-sales engineers from the French Sarem Company for on-site repairs, it is really too high, starting at at least three thousand US dollars."

Xiang Lixin pondered for a moment and said: "I think it is more appropriate to calculate according to the standard of purchasing a new thermal relay.

"Our equipment department has contacted the French Sarem Company. The quoted price for a thermal relay is US$750. Including postage and customs clearance fees, it only costs US$1,000. Calculated according to the current official exchange rate announced by the People's Bank of China, it is roughly equivalent to

How about if it’s more than 5,700 yuan, we’ll round it up for you and calculate it as 5,800 yuan?”

"As long as you feel comfortable with the factory director, I will definitely have no problem!" Guo Yonghe agreed with a smile.

Naturally, he had nothing to be dissatisfied with. While being able to send Du Xiangyang to jail for five years, he could also get a huge income of 5,800 yuan. This trip was full of rewards, and it was not worth his special trip.

Such a trip to the heavy machinery factory.

“It’s no problem!”

Xiang Lixin nodded, but then said: "But Technician Guo, we can't just have rewards without punishment. Everyone will be happy if you repair the thermal relay. I can start processing precision gears here, and you have also obtained a high level of achievement."

amount of maintenance fees.

"But what if the repair fails? What should we do? Risks and benefits are equal. There is no reason for you to only enjoy the benefits after success but not bear the risks after failure.

"The Heavy Machinery Factory is not the boss of my boss. I always have to give an explanation to the superior leaders and the people below!"

"hehe,"

Guo Yonghe laughed and said: "Director Xiang, what you said does make sense. It's impossible for me to just enjoy the benefits and not take the risks.

"Then let's do it like this. We can sign a maintenance agreement first. According to the principle of equal risk and return, if I repair the thermal relay, then your heavy machinery factory will pay me a maintenance fee of 5,800 yuan.

"If I can't repair the thermal relay, then I will give your factory 5,800 yuan to compensate for the cost of the new thermal relay your factory purchased from the French Sarem Company. What do you think?"

"There must be no problem with this!"

Xiang Lixin nodded and said: "I am doing this just to explain it to the superiors. In fact, as you know, what our factory urgently needs is to repair the thermal relay and let the Sarem CNC machine tool resume work, rather than caring about thousands of dollars."

The purchase cost of spare parts is RMB.”

"Yes, I understand!" Guo Yonghe said.

"Then it's decided happily!"

Xiang Lixin extended his hand to Guo Yonghe, "I will ask the director of the factory office to draw up a maintenance agreement on the spot. After both of us sign it, you can start repairing the thermal relay!"

Leading Guo Yonghe back to the Sarem CNC machine tool, he first asked the director of the factory office to draw up a maintenance agreement, and then said to Qian Hongqi: "Chief Qian, please bring Comrade Du Xiangyang back to your department first and let him remember it well.

Let’s look at the process of maintaining the electrical control cabinet of the Sarem CNC machine tool this afternoon. We must find out how the air-conditioning water shield was installed backwards!”

"Director Xiang, what do you mean?"

Du Xiangyang shouted from the side, "I am a temporary cadre sent by the Heavy Industry Department. Without the approval of the leaders of the Heavy Industry Department, who of you dare to touch me?"

"Haha, Section Chief Du, we have no intention of touching you!"

Xiang Lixin said with a smile, "It's just that the scene here is too chaotic. I'm afraid it's hard for you to recall under what circumstances the air conditioner water shield was installed backwards, so I asked Section Chief Qian to take you to a quiet place."

It’s just for your convenience.”

As he spoke, he gestured towards Qian Hongqi.

After Qian Hongqi got Xiang Lixin's approval, he didn't care whether Du Xiangyang was a gilded cadre from the Department of Heavy Industry. He immediately led several men from the security department to pounce on him like wolves and tigers, regardless of Du Xiangyang's struggle and resistance.

, took him out of the metalworking workshop.

At this time, the director of the factory office also drafted the maintenance agreement according to Xiang Lixin's instructions and divided it into two parts. One was given to Xiang Lixin and the other to Guo Yonghe.

Xiang Lixin reviewed it and saw that there were no problems, so he took a pen and signed his name on the agreement.

Guo Yonghe took it in his hand and read it carefully, but found nothing wrong with it, so he also took a pen and signed his name on the agreement in his hand, and immediately exchanged the agreement with Xiang Lixin, and then calmed down again.

He signed his name on the agreement and carefully stuffed it into his pocket.

With this agreement, it is equivalent to nailing Du Xiangyang to the crime of dereliction of duty.

The huge loss of state-owned assets of 5,800 yuan is not something Du Xiangyang's thin shoulders can bear!

Xiang Lixin also signed the exchanged agreement. He handed the agreement to the director of the factory office for safekeeping, and then said to Guo Yonghe: "Technician Guo, can we start repairing the thermal relay now?"

"That's it!"

Guo Yonghe nodded, asked Hu Changzheng to get the tools, used another ordinary machine tool as a workbench, took the broken thermal relay, and started repairing it on site.

"Technician Guo,"

Hu Changzheng stood aside, consciously acting as the apprentice who helped Guo Yonghe deliver the tools. He couldn't suppress his curiosity and asked Guo Yonghe: "Can this thermal relay really be repaired? How do you plan to repair it?

Where is this thermal relay?"

"Haha, of course it can be repaired!"

Guo Yonghe laughed, pointed at the components on the thermal relay with tweezers, and said: "The full name of this thermal relay is a three-phase AC thermal relay. There are three thermal components on it, which are used to protect the cooling pump from overload.

of.

"Generally speaking, a current overload will only burn out one heating element, don't you think?"

Hu Changzheng looked in the direction pointed by Guo Yonghe's tweezers, and sure enough he found that the thermal relay had only burned out one thermal element.

"Technician Guo, these three heating elements are connected in series. If one heating element is broken, there is no way to use it! We do not have corresponding heating elements in China, and the French Sarem Company does not sell heating elements separately.

We only sell the entire thermal relay."

Hu Changzheng shook his head and said, "There is no heating element, how are you going to fix it?"

"hehe,"

Guo Yonghe laughed again, led Hu Changzheng back to the Sarem CNC machine tool, pointed to the cooling pump motor exposed after removing the thermal relay, and asked Hu Changzheng: "Chief Hu, please take a closer look.

, how are the external circuits of this cooling pump motor connected?"

Hu Changzheng lowered his head and inspected it carefully, then raised his head and said, "It's a three-phase star connection."

"Chief Hu,"

Guo Yonghe reminded again: "Then do you still remember the structure of the thermal relay that protects this three-phase star-connected AC motor on Soviet CNC machine tools?"

"Soviet CNC machine tools?"

Hu Changzheng suddenly slapped his head and shouted: "The thermal relays that protect the AC motors of the cooling pumps on Soviet-style CNC machine tools seem to have only two thermal elements!"

"Haha, isn't that right!"

Guo Yonghe said with a smile: "For this kind of three-phase star-connected AC motor, a thermal relay with two thermal elements is enough to protect it from overload. So now it doesn't matter if the thermal relay is broken and one thermal element is broken.

As long as we short-circuit the burned out resistance heating element and keep the other two resistance heating elements open, the thermal relay can resume work and assume the task of protecting the cooling pump motor!"
Chapter completed!