yes, how did I not think of it? The new gearboxes have been replaced, and the abnormal noise is still there, so what does that mean? The problem is not with the gearbox! The location of the fault that you have speculated on from the beginning may be wrong.

If there is no problem with the gearbox, then what is the problem? The clutch is a friction plate, and there will be no jitter of the gear, so it can only be a single external meshing side reducer out of the outside!

This device can be dismantled inside and outside, but if it is dismantled from the inside, it is necessary to use a small crane in the workshop to lift the entire power unit to disassemble the reducer for repair, and if it is from the outside, then remove the driving wheel, and it can be repaired!

I should be able to think of this, but it's a pity that I always rely on experience, subjective assumptions, and don't think more deeply, if it is repaired by Qin Zhenhua, then I will be ashamed!

As a master, his skills are not as good as those of apprentices, and in front of so many apprentices and masters, how can he take apprentices in the future?

However, this is just a judgment, maybe there is something wrong with the new gearbox? Thinking of this, Master Liu relaxed again.

As a master of his own, he didn't expect that although Qin Zhenhua's father was an outstanding tank engineer, it was his father after all, and he himself, a student who was about to take the college entrance examination, had no experience in tank maintenance, and he didn't even know how to disassemble this reducer, right?

Just when he thought of this, his mouth opened wide, and Qin Zhenhua had already begun to disassemble the reducer!

"Six wrench."

"Plum Eight."

What Qin Zhenhua needed was tools, basic maintenance tools, Wang Erzhu handed him tools, Qin Zhenhua's hands kept turning the tools, and soon, the shell of the reducer was disassembled.

Inside the reducer, there is black viscous lubricating oil, Qin Zhenhua is not afraid of getting dirty, so he directly put his hand in, tossed it a few times, pried the gear down, and then turned it a few times, and stuffed it in. In less than a minute, he stretched out his hand, wiped the oil on his hand with a glove, and began to install it, contrary to the process just now.

"Okay, not a single part has come out, and the installation is complete." Finally, with great difficulty installing the tracks, Qin Zhenhua looked at the oil stains on his hands with a confident smile on his face: "Okay, now you can try it." ”

If it can't be repaired, then after disassembly, there will definitely be more parts.

"Qin Zhenhua, what are you kidding?" Master Liu said there: "You didn't fix anything, just took it apart and put it back together?" ”

Master Liu really thought that there was a problem with the side reducer, but now, looking at Qin Zhenhua's repair, it was clear that he hadn't done anything, and he was still playing tricks!

The repair of the tank is definitely not something that can be disassembled and made a few times, after dismantling, the faulty parts must be replaced, and the hidden dangers must be replaced, and now, Qin Zhenhua has not replaced a single part, which is repaired?

"Whether it's fixed or not, try it and find out." Qin Zhenhua said.

"I'll try!" At this time, Zhang Xiangqian, the test driver, had been waiting impatiently, this tank, the army has been urging it, such a mess, although it looks mysterious, but after all, it has been repaired, try again!

"I'll do it too." Liu Jianzhi said, the problem of the power system, one person test is enough, Zhang Xiangqian is a special test driver, only test guns and the like, Liu Jianzhi such a master has to follow, but in this case, Liu Jianzhi is also impatient, go out for a walk, if the fault is not eliminated, then it is necessary to educate Qin Zhenhua well.

"Master Liu, slow down." Several apprentices hurriedly stepped forward to help, and at this time, even Liu Dajun went up to join in the fun, and Master Liu was pushed by a few of them and went up directly.

Drilling in from the turret, revealing half of his body, Liu Jianzhi shouted to the front: "Open!" ”

When the test drive, the master is behind, you can also listen to all kinds of noise in time, as soon as possible to find out the situation, now, Liu Jianzhi is very impatient, I want to see, you are so foolish, is it good!

"Poof." The engine at the tail came with the sound of compressed air, for the engine of the tank, it is definitely more convenient to start with compressed air than with electricity, he stepped on the accelerator a few times, and he heard the rumble of the engine from the tail, the clatter of the high-pressure oil pump of the diesel engine and the rumbling sound of the exhaust, which are the most familiar to everyone.

Now, there is no murmur.

The crowd has automatically dispersed, and when the tank starts, it must be farther away, because the blind spot of the tank's vision is too large, the distance is too close, and it is easy to be crushed by accidents, and many of the annual death indicators of the tank factory are occupied by this kind of accident.

Zhang pulled the levers on both sides forward, stepped on the accelerator, and the tank rumbled.

There was no noise, no noise, and the rattling behind it disappeared!

"Looks like it's been fixed?" Zhang Xiangqian shouted, the noise of the tank was so loud that he had to shout loudly.

"No way, that's because the speed hasn't gotten up yet!" Liu Jianzhi shouted: "Continue to speed up, increase gear, to the highest speed!" ”

Zhang Xiangqian skillfully pulled the operating levers on both sides back to raise the gear, and the tank began to speed up, and puffs of black smoke came out of the tail and drove towards the shooting range.

Increase the speed, I don't believe there is no noise.

During this period of time, Liu Jianzhi was tired of this tank, and he didn't look forward to repairing it all the time, but now, he only hoped that the tank was still broken, and the fault was not repaired.

However, he was disappointed.

The speed of the tank is getting faster and faster, and when the operating levers on both sides are pulled to the end, the tank has already begun to run forward at maximum speed, constantly bumping back and forth on the grassland, and Liu Jianzhi's heart is also shaking with the bumps of the tank.

No problem, no problem, sure enough, there is no murmur yet!

"Not enough distance! Let's test the car! Take a few laps around the range! "I just changed the gearbox last time, didn't I start to get better, and then the failure reappeared?

Run more, the fault will definitely come out, we can't deliver the tank with hidden dangers to the troops! Liu Jianzhi's will is firm.

One lap, two laps, three laps, it's been half an hour, the sun is going down, the green grassland is covered with a layer of red sunset, Zhang Xiangqian shouted loudly in front: "The fuel is running out, let's go back, the fault can be determined to be eliminated!" ”

This test run has long exceeded the provisions of the test regulations, and it is no problem at all!