From the sheet metal to the transmission system, nothing is left, euphemistically called for a more complete understanding of the working conditions of the machinery.

Zhu Xiao didn't understand. Seeing Ji Dongqing busy in full swing, he felt very happy and bought mineral water for the workers for the first time.

In the first two days, Ji Dongqing basically did nothing but dismantle the bulldozer. In order to understand the structure of every part of the bulldozer, Ji Dongqing hardly slept.

At night, when the lanterns were turned on, Ji Dongqing put up the spotlights.

When the weather was hot during the day, Ji Dongqing pulled up the sunshade net.

After a few days, Ji Dongqing understood the structure of the machine, and during the rest of the time, Ji Dongqing began to assemble it frantically.

According to the experience of the past few days, the 75-type bulldozer is basically used on large farms, and the damage to the machine is mainly concentrated on the internal cylinder of the diesel engine.

There are not many other conditions. The balance shaft is occasionally damaged, but it is not serious.

Ji Dongqing conducted an ignition test on each machine. Two gasoline engines completely stopped working. Ji Dongqing decisively dismantled the entire engine.

Looking at the chassis and transmission system, Ji Dongqing did not disassemble them, but used the simplest high-pressure cleaning.

Strictly speaking, this kind of repair is absolutely prohibited, but in order to meet the deadline and improve efficiency, Ji Dongqing worked hard.

"Hold it, listen to my slogan!"

"Whoosh!"

The huge tripod was lowered, and Ji Dongqing pulled the chain of the pulley. A huge 75 engine hung under the hook. A group of workers held wooden sticks as thick as bowls with both hands, and put their heads on the side walls of the engine.

"one two three!"

As Ji Dongqing raised the engine, the workers gritted their teeth and resisted the huge thrust of the engine. Ji Dongqing raised it again, and the 75 engine slowly straightened.

"Come on, Lao Hu, come here and put the chain on, and I'll take a look at this machine!"

"okay!"

After greeting the person in charge of the construction site, Ji Dongqing ran to the 75 tractor, stepping on the tracks and staring closely at the lower part of the engine.

"Put it up, put it down again, put it up again, come this way... ok, drop it... put it through the bolt!"

The first adjusted engine was installed in place. Ji Dongqing asked people to remove the tripod, and then began to connect the bolts, and then made various alignments.

That afternoon, Ji Dongqing asked someone to pull the ignition rope of the gasoline engine.

"chug……"

"Dong dong dong!"

"It's done!"

Looking at the black smoke coming out of the diesel engine, several workers working together screamed excitedly. Ji Dongqing waved his hand, and several people stepped back and moved the tools in front of them.

Ji Dongqing pushed the handle, and the bulldozer moved slowly, then turned on the spot and retreated, all movements without any lag, Ji Dongqing breathed a sigh of relief.

"Put the chassis cover on, cover this side with newspaper and spray paint!"

"okay!"

Once the core components are finished, Ji Dongqing doesn't care about the rest.

During the refurbishment of the engine cover sheet metal, Ji Dongqing had already taught the foreman, and Ji Dongqing did not care about the remaining sheet metal.

In fact, domestic bulldozers are best made of sheet metal. They only come in one color. When you go to the store, as long as you tell them the model number, the boss will give you the color right away. You can never go wrong.

Ji Dongqing asked the workers to wash the tracks with high-pressure water guns, replace two of the tracks, and continue to dismantle the second one.

All bulldozers use a gasoline engine to drive a diesel engine, which is a dual-engine start.

In most cases, there will be no problems. Once problems occur, they are basically impossible to fix.

Ji Dongqing disassembled all the engines that could be started, which was actually his intention.

Skillfully opening the engine cover of the gasoline engine and disassembling various parts starting from the valve, the workers nearby could only watch.

"Bring this thing over there!"

"okay!"

The bearing bush of the crankshaft was strained, which meant that the crankshaft could no longer be used. Ji Dongqing had people rush to get the parts he had originally dismantled. The connecting rod and bearing bush were not seriously damaged and could be used.

Ji Dongqing symbolically checked the surface of the connecting rod and piston at the corresponding position, and then handed it over to his subordinates to start cleaning.

I continued to dismantle the diesel engine. Compared to the gasoline engine, the diesel engine was dirtier. The oil that was put down was all black. Of course, this does not mean that the oil is not good, because this is the virtue of diesel engines.

Under normal circumstances, it is normal for a diesel engine to rotate one or two thousand rpm lower than a gasoline engine. The compression-ignition structure makes the diesel engine stupider and more powerful.

"Damn it, I'm so lucky this time!"

Gently remove the piston. As expected, the piston rings are almost completely destroyed and the connecting rod bearings are also worn.

Ji Dongqing used a spiral micrometer to measure the external dimensions of the piston himself. Fortunately, the wear was not serious and there was no oval, otherwise even the piston would have to be replaced.

Fortunately, there are a lot of dismantled car parts here, and Ji Dongqing is very excited.

According to the requirements of the original engine manufacturer for assembling the engine, each part has matching requirements, and what kind of tolerances match what kind of cylinder block.

Now that the car is being dismantled, Ji Dongqing can only measure the tolerances, dynamic balance, and gap error adjustment. Except that the gap between the valve and the gland can be simply adjusted with a feeler gauge, he doesn't care about the rest.

"Quick workers, let's take a break. There's no need to work so hard at such a young age. We farmers don't have as much physical strength as you!"

After eight consecutive days of intense work, Ji Dongqing had completed six bulldozers, and foreman Lao Hu finally couldn't bear it anymore.

"Uh... Hi, Lao Hu asked someone to buy some popsicles and cold drinks for the brothers. If you drink Coke, buy Coke. Buy whatever you want to eat. I'll treat you tonight!"

Having completed Zhu Xiao's task, Ji Dongqing also relaxed at this time, and next bought one to make an extra profit for himself.

I wouldn't have been able to do well without the cooperation of this group of people these past few days.

Now there is only the sixth bulldozer that has been repaired on the site. Zhu Xiao has repaired one of the remaining bulldozers and taken another one away. Ji Dongqing doesn’t even know where the other bulldozer has gone.

"Be particular about it. Who will go to the store and bring some popsicles to you? Those who drink water will get their own water. Pay will be paid later. We will get off work early today and have a barbecue. The seasonal workers will treat you!"

When they heard someone was treating them, the workers let go.

The two of them directly carried the popsicle box out of the shop, and everyone competed in eating popsicles. Ji Dongqing clicked his tongue when he saw it, and thought to himself, are you not afraid of getting a bad stomach?

It was past six o'clock when the last machine finished painting the sheet metal. Ji Dongqing changed his clothes and took everyone in a mini car to a barbecue restaurant near the repair shop.

Strictly speaking, this is Harbin's food stall. The difference is that the beer here in Acheng is not free, but the price is cheap, only RMB 50 a bottle, and it is local beer.

"Everyone can order what they want to eat, so there is no need to save money. Everyone is taking care of it these days, so you can eat freely and don't overdo it. Everyone has to go home in the evening!"

"Hey, don't worry, Ji. If we don't bring you the rest, it will definitely hurt your body. That boss, carry two boxes of beer!"
Chapter completed!