In 1992, a small village owner became the richest man in the village by owning a car.

Chapter 56 Cross-section of Electric Welding Screws

The next day, Yu Dawei had the second team start disassembling the engine, while he provided guidance from the side.

Actually, the engine is easy to disassemble; you just need to remove the screws. The main problem is that for people who don't understand imported excavators, assembling the excavator is extremely difficult.

If even one of the many parts is installed incorrectly, the entire engine will be rendered unusable.

The valve cover, valve assembly, cylinder head, etc. on top of the engine were all removed.

Yu Dawei felt that the people in the second team were very efficient, much better than those in the first team who were just joking around. If he had a repair company, he would really want to poach all of them.

At the rate these four people can disassemble, the engine should be completely disassembled today.

Judging from their methods, these people probably had little experience with imported excavator engines, and some of their disassembly procedures were completely wrong.

This also led to situations where the parts could not be removed during the disassembly process.

However, Yu Dawei was always there to guide them. He explained things very carefully, which could be considered as teaching them how to disassemble imported engines.

The group grew increasingly respectful and admiring of Master Yu, who was much younger than them.

The people in the distance, of course, heard it too. They felt a pang of sadness for no reason as Master Yu patiently guided the people in the second team.

Xiao Bai quickly brought over the welding machine. It was a brand new welding machine, very large, and it was difficult for one person to lift it.

When Yu Dawei saw that his precious item had arrived, he rushed over to help. He placed the welding machine under the feet of the Ackerman excavator and connected it to a power strip.

After connecting the positive and negative electrodes to the welding machine, Yu Dawei was dumbfounded: "Xiaobai, where are the welding rods? And there are no gloves or welding helmets either?"

"Huh?" Xiaobai was taken aback. "What are welding rods? You only said you needed a welding machine, so I borrowed one. We've already left, and they didn't mention welding rods or a welding cap to me."

Yu Dawei rubbed his forehead, realizing he had underestimated Xiaobai's understanding of welding: "Hurry up and go back again to get the welding rods, and borrow a welding helmet and gloves."

"Okay, alright." Xiaobai knew he had made a mistake, so he didn't hesitate, turned around, and drove off again.

There's a repair shop in the city that has a good relationship with the Eighth Bureau. They're responsible for the maintenance of the branch company's shuttle buses, and Xiaobai's equipment was borrowed from there.

More than half an hour passed between the two trips.

Master Lü remained seated in the driver's seat, watching the show unfold. He was quite surprised that Yu Dawei knew how to use a welding machine. He already held Yu Dawei in high regard, but the man's unexpectedness was still astounding.

"Welding, it takes three or four years of practice to become a skilled apprentice," Master Lü said with some emotion.

When he first entered the industry, he learned electric welding. Back then, welding masters were even more prestigious, and you had to bring a lot of generous gifts to become an apprentice.

But he was ultimately not chosen and ended up working as a screw tightener in a shipyard.

Later, times changed, and he became wealthy. He bought a small electric welding machine and practiced for a year or two, but he was still only at a beginner level.

I've heard that skilled welders can work underwater, doing both water welding and oil welding.

He just didn't understand why Yu Dawei had a welding machine. What did he want to weld? If the machine body had been welded before, it would definitely be scrapped.

"Your welding rods, your hat, your gloves, all set." Bai Zhongsheng placed the items next to Yu Dawei. "Okay, thank you for your hard work, Director Bai."

"Don't try that on me, I'm not buying it."

Yu Dawei smiled without saying anything, turned around and reconnected the positive and negative terminals from the ground, then clamped the welding rod in the welding pliers and placed the negative terminal on the large pump.

Everyone present, except Bai Zhongsheng, stopped what they were doing.

Master Lü's eyes widened even more: "This kid really isn't going to weld a big pump, is he? What's the point? If he does this, it's no wonder the pump will break."

Yu Dawei squatted down and compared the thin welding rod with the screw hole. The diameter of the screw hole was very large, so there was no problem at all!

Only then did he feel relieved enough to put the welding pliers on the ground and go to the second team's toolbox to find tools.

A T-shaped socket wrench happened to come into Yu Dawei's field of vision.

Moreover, it's a small size 8 Torx wrench, which is perfect.

"Squad leader, I'll requisition this tool first." Yu Dawei waved the tool in his hand at the squad leader.

"Use it with confidence, Master Yu."

Yu Dawei stopped being polite, turned around and walked to the broken screw hole of the large pump, and began to compare it again.

"Master Lü, what is Master Yu doing?" The team leader couldn't help but walk up to Master Lü and ask quietly.

Seeing Yu Dawei's actions, Mr. Lü in the driver's seat thought for a moment and immediately understood what the other party wanted to do!
"This kid wants to weld the screw to the tool with an electric welder and then use the force to unscrew it. The idea is pretty good." I couldn't help but scoff. "However, the screw is already rusted inside. He really thinks he can unscrew it with just a few welds. Without ten or eight years of welding experience, that's just wishful thinking."

Upon hearing this, the team leader and his teammates were all quite amazed. This Master Yu seemed to have many ingenious tricks when it came to repairing cars, and they couldn't help but admire his clever ideas.

However, as Master Lü said, the idea is good, but putting it into practice is another matter entirely.

Yu Dawei squatted in front of the large pump, placed the T-shaped sleeve against the cross-section of the broken screw, picked up the welding pliers with his right hand, and began to weld three points at the contact point between the sleeve and the screw to fix the T-shaped sleeve in place.

Then he turned around, picked up the welding helmet from the side, and held it in front of his eyes. Although it was called a helmet, it was not meant to be worn on the head, but rather to be placed in front of the face. There was a black glass shield in front of his eyes, the purpose of which was to prevent the sparks from being too bright and irritating his eyes during welding.

Welding requires a steady hand and a calm mind. Even if sparks hit your body, as long as you are not injured, you must not panic. Otherwise, if your hand shakes, the previous welding point may fail, causing a break in the entire welding process.

This is a screw-welding technique that Yu Dawei learned in his previous life.

In fact, in the future, welding screws to remove broken screws will be a very common repair method.

However, people haven't yet discovered this idea, which is also related to the scarcity of equipment in the current market.

Yu Dawei used two welding rods to completely cover the joint of the screw, and then he just had to wait for the joint to cool down.

Time passed second by second, and the people in the courtyard were very curious, wanting to witness whether Yu Dawei's method would produce a miracle.

Yu Dawei touched the connection point and felt that the outer surface was completely cold. After waiting a few more minutes, he took a short metal tube and placed it on the force-operating side of the T-wrench to increase the leverage.

(End of this chapter)