Yes, why didn't I think of that? The new gearbox has been replaced, but the abnormal noise is still there. What does that mean? The problem is not with the gearbox! The fault location I guessed from the beginning may be a mistake.
of.
If there is no problem with the gearbox, then what is the problem? The clutch is a friction plate, and there will be no rattling vibration of the gear. Then it can only be the single pair of external meshing side reducers outside!
This device can be dismantled both inside and outside, but if it is dismantled from the inside, it will need to use a small crane in the workshop to lift the entire power unit before the reducer can be disassembled for repair. If it is disassembled from the outside, then
Remove the driving wheel and you can repair it!
I should be able to think of this, but it's a pity that I always rely on experience and subjective assumptions without thinking more deeply. If Qin Zhenhua fixes it, then I will be embarrassed!
As a senior master, his craftsmanship is not as good as that of an apprentice. Moreover, in front of so many apprentices and masters, how can he take care of his apprentices in the future?
However, this is just a judgment. Maybe there is something wrong with the newly replaced gearbox? Thinking of this, Master Liu relaxed again.
As a senior master, he never thought that although Qin Zhenhua's father was an outstanding tank engineer, he was his father after all. He himself, a student about to take the college entrance examination, had no experience in tank maintenance. He didn't even know how to dismantle this tank.
You don’t even know about reducers, right?
Just when he thought of this, his mouth opened wide, Qin Zhenhua had already started to dismantle the reducer!
"Wrench No. 6."
"No. 8 Plum Blossom."
What Qin Zhenhua needed were tools, basic maintenance tools. Wang Erzhu handed him the tools. Qin Zhenhua's hands kept turning the tools, and soon the reducer casing was disassembled.
Inside the reducer was thick black lubricating oil. Qin Zhenhua was not afraid of getting dirty, so he directly put his hand in, flicked it a few times, pried off the gear, turned it a few times, and stuffed it in again.
It took less than a minute. Then, I stretched out my hand, wiped the oil on my hand with my gloves, and started to install it in the opposite direction to the previous operation.
"Okay, there are no extra parts, the installation is complete." Finally, he struggled to install the track. Qin Zhenhua looked at the oil on his hands with a confident smile on his face: "Okay, now you can try it."
If you don't know how to repair it, there will definitely be too many parts after disassembly.
"Qin Zhenhua, are you kidding?" Master Liu said there: "You didn't repair anything, you just took it apart and then reinstalled it?"
Master Liu originally really thought that there was something wrong with the reducer on the side, but now, looking at Qin Zhenhua's repairs, he clearly didn't do anything and looked like he was making a fool of himself!
The repair of a tank is definitely not a matter of dismantling it a few times. After disassembly, faulty parts must be replaced, and any hidden dangers must be replaced. Now, Qin Zhenhua has not replaced a single part, so it has been repaired?
"Whether it's repaired or not, you'll know if you try it," Qin Zhenhua said.
"I'll give it a try!" At this time, the test driver Zhang Xiangqian had been impatient for a long time. The troops had been pressing for this tank. Although such tinkering seemed very mysterious, it was repaired after all.
Give it a try!
"I'll come too." Liu Jianzhi said. Originally, for problems with the power system, it was enough for one person to test the car. Zhang Xiangqian was the dedicated test driver. Only for gun testing and the like, a master like Liu Jianzhi had to follow, but in this situation now
Next, Liu Jianzhi couldn't wait to go out for a walk. If the fault was not eliminated, he would have to educate Qin Zhenhua.
"Master Liu, slow down." Several apprentices hurried forward to help. At this time, even Liu Dajun came up to join in the fun. Master Liu was pushed by them and went up directly.
After getting into the turret and exposing half of his body, Liu Jianzhi shouted towards the front: "Open!"
When testing the car, the master can listen to various noises in time and detect the situation as early as possible. Now, Liu Jianzhi can't wait. I want to see if your messy messing up is going to be any good!
"Pfft." The sound of compressed air came from the engine at the rear. For a tank's engine, starting with compressed air is definitely more convenient than starting with electricity. He stepped on the accelerator a few times and heard the sound of compressed air coming from the rear.
The rumble of the engine, the click of the high-pressure oil pump of the diesel engine and the rumble of the exhaust are all familiar to everyone.
Now, there is no noise.
The crowd has automatically dispersed. When the tank is moving, you must stay far away, because the blind area of the tank's field of vision is too large, and the distance is too close, and it is easy to be crushed in an accident. The annual death index of the tank factory
, many are occupied by such accidents.
Zhang pulled the operating levers on both sides forward, stepped on the accelerator, and the tank rumbled into action.
There was no noise, no noise at all, and the rattling noise behind had actually disappeared!
"It seems to have been repaired?" Zhang shouted forward. The tank made so much noise that he had to shout at the top of his lungs.
"It's impossible, that's because the speed hasn't picked up yet!" Liu Jianzhi shouted: "Continue to speed up, upshift, and reach the maximum speed!"
Zhang Qianqian skillfully pulled back the operating levers on both sides and raised the gear. The tank began to speed up, with streams of black smoke coming out of the tail, and headed towards the shooting range.
Increase the speed and I don't believe there will be no noise.
During this period of time, Liu Jianzhi was fed up with the damage of this tank, and he was always looking forward to repairing it as soon as possible. But now, he only hopes that the tank is still broken and the fault has not been repaired.
However, he was disappointed.
The speed of the tank is getting faster and faster. When the operating levers on both sides are pulled to the end, the tank has begun to run forward at maximum speed, bumping back and forth on the grassland. Liu Jianzhi's heart is also following the movement of the tank.
Bumping and shaking constantly.
No problem, no problem, there is no noise!
"The distance is not enough! Let's continue the test drive! Run a few laps around the shooting range and see!" I just replaced the gearbox last time. Didn't it start well and then the fault reappeared?
If you run more, the fault will definitely come out. We can't hand over the tanks with hidden dangers to the troops for use! Liu Jianzhi's will is firm.
One lap, two laps, three laps, and they have been running for half an hour. The sun is going down, and the green grassland is covered with a layer of red sunset. Zhang Xiangqian shouts loudly from the front: "We are running out of fuel.
Go back, the fault has been definitely eliminated!"
This test run has already exceeded the test run regulations, so there is no problem at all!