At the beginning of the fire to save people, I was broadcast live as a firefighter

Li Xiao's gaze fell on the barometer whose pointer had fallen outside the red line.

The barometer has completely failed, and there is no way to display the air pressure in real time.

This makes the rescue even more difficult.

Without visual instruments, it needs to be regulated through personal feeling and experience.

Without knowing the real pressure, touch the power unit of the hydraulic transmission system rashly.

Not only would it be possible to suddenly increase the pressure of the hydraulic clamp, it would directly split Xiaoguan's arm in two.

It may also cause the booster tube or decompression tube to be ejected due to the imbalance of internal pressure when it is removed.

You must know that the upper limit of the pressure of this hydraulic clamp is 1200 catties.

A hydraulic tube thicker than a finger, once ejected by a pressure of 1200 catties.

This is definitely more powerful than the spiked spears thrown by the most elite spear throwers in the Middle Ages.

If one of them, Li Xiao, had absolute confidence, he could easily dodge it.

But on the hydraulic clamp, there are 12 hydraulic pipes of different sizes.

If something goes wrong, those 12 hydraulic pipes will surely spray everywhere like fairy flowers.

Even if he is as strong as Li Xiao, if he gets hit, he may be seriously injured or even die on the spot.

What he needs to do now is to manually reduce the air pressure of the low-pressure device and the high-pressure device at the same time.

The air pressure difference between the two devices must be controlled between 100 and 110.

Among them, 20 is the redundant value designed by the factory.

The reason for this redundant numerical setting is that the precision of the parts is insufficient.

Parts with lower precision can control machine cost well.

On the other hand, the concerns of mechanical aging, air tightness and wear are also considered.

Before changing it, he would never have dared to deal with such a machine.

We can only wait for the large-scale professional cutting equipment on the fire truck to cut off the jaws of the mechanical pliers directly.

But now not only is the situation urgent, but he has also mastered [Passive Skill: Mechanical Disassembly (Intermediate)], [Passive Skill: Mechanical Understanding (Elementary)].

He took a deep breath, the pressure gauge was broken.

But that doesn't mean there's no way to measure pressure.

It's just that it's more difficult. Thumb and forefinger gently unscrew the transparent hose of the pressure gauge.

This small hose connected to the inside of the machine has been decompressed many times before it comes to the pressure measuring instrument.

Therefore, the power of the ejected gas is not very great, and it is not the actual pressure in the machine.

Some elderly lumberjacks also saw what Li Xiao wanted to do.

After all, after working for a long time, I still have a certain understanding of the guy I eat.

Surprised expressions appeared on their faces.

My heart was overwhelmed, and some smart people had already quit, several meters away.

Two of them have even taken cover behind tree trunks.

More than 20 people gathered in the live broadcast room.

There are also professional mechanical engineers or mechanical repairmen among them, and they have also seen Li Xiao's intentions.

"No way, no way, the anchor just wants to test the air pressure inside the machine with a pair of palms?"

"Impossible, how can this be done?"

"No, it's impossible that the old imported equipment in our factory broke down and we couldn't find replacement parts. My master can indeed feel the air pressure inside the machine with bare hands."

"Actually, it's not impossible, but it's too difficult and requires too much experience. I think it's possible to replace a 50-20-year-old master, but the anchor is just a firefighter, and he's only in his early [-]s. That’s a little bit overwhelming.”

"The transmission system of this hydraulic pliers is very complicated. The 12 pressure-increasing pipes and pressure-reducing pipes are connected together. It can be said that it can affect the whole body. It is simply impossible to repair it with the equipment in the toolbox. It's as difficult as reaching the sky!"

·····

There are many related practitioners in the live broadcast room, but none of them are optimistic about Li Xiao.

This kind of operation is very difficult for those old masters who have been immersed in this industry for decades, let alone Li Xiao, a little guy with no hair yet.

Everyone sighed, feeling sorry for a teenage boy who was about to lose an arm.

Two transparent white hoses, one on the left and one on the right, were tightly held by Li Xiao in the palm of his hand.

He closed his eyes, carefully feeling the faint air blowing out from inside.

He even tried to keep his breathing and heartbeat as low as possible so as not to affect his feelings.

The pressure of the high pressure valve should be around 1350~1360.

The pressure of the low pressure valve should be around 1250~1260.

Most likely there is a problem with the force gauge valve.

causing the upper limit of the pressure output to momentarily exceed the threshold.

And it exceeded a full 100 kilograms, which led to mechanical failure.

After confirming the values ​​on both sides, Li Xiao felt a little difficult.

He hastily inserted the small hose back into the gauge.

But he muttered in his heart, this is troublesome.

The numerical difference between the high pressure valve and the low pressure valve is 100.

The redundancy value of the machine is 20.

The so-called redundant value, that is, this value, can fluctuate by 20.

That is to say, the gap between the high pressure valve and the low pressure valve value is a safe value within 90~110.

The pressure value that I can feel on my side can only be specific to 10 digits at most.

If the pressure of the high pressure valve is actually 1360 now, and the pressure of the low pressure valve is 1350.

The machine, then, is in the most delicate balance.

Whether it is supercharging or decompressing, it will break the delicate dynamic balance of these 10 points.

If you're lucky, no, not afraid of [-] in case.

He frowned deeply and fixed his eyes on the air pressure valves on both sides.

The people next to him also saw Li Xiao's concerns, and tried to dissuade him:

"Little brother, why don't we wait for the fire truck!"

"That's right, don't look at the size of the hydraulic tongs, the impact force inside is not small."

"Yes, it's best to be careful, Xiaoguan is already like this, so don't let you get involved."

"This thing is very dangerous. In the past, if there was any problem, the engineers in the factory would come to adjust it, or forget it!"

Even Xiao Guan, whose mind was a little fuzzy, shook his head slightly.

With the last ounce of strength in his body, he raised his paper-pale fingers.

His fingers rested lightly on Li Xiao's wrist, trying to push the hand on the hydraulic clamp away.

But his movements were in vain. The long-term severe pain made him lose his strength.

Apparently tortured by severe pain, he was almost delirious and understood how risky it was to do so.

The kind-hearted Xiaoguan obviously didn't want to cause other people to have accidents because of his own injury.

Seeing that he couldn't push, he could only speak with trembling lips:

"Don't take any chances... Hiss... Isn't it just one arm? Even if it is cut off, there is another one?"

As he spoke, a smile uglier than crying appeared on his face.

Seeing this smile, Li Xiao's original hesitation disappeared immediately.

He patted the boy's hand lightly, and said firmly:

"Don't worry, big brother will definitely help you save this hand!"

After speaking, he shouted to the people around him:

"Everyone stand back, I'm going to start!"

Hearing his reminder, the loggers who had retreated for several meters immediately got injured and hid away one by one.

Zhang Dingyuan also heard something wrong in Li Xiao's tone, his face changed, and he quickly leaned into Li Xiao's ear:

"What do you want?"

"Don't take any chances, the fire truck will be here in 5 minutes at most!"

"The extra 5 minutes and the shorter 5 minutes have no effect at all!"

"Don't be impulsive, it's too dangerous."

"If one fails and the situation worsens, you will be held responsible."

Li Xiao shook his head and pushed Zhang Dingyuan's hand away.

"It's not a five-minute thing."

"The hydraulic pliers are made of alloy steel with a strength as high as A grade."

"Even if you use the hydraulic shear on the fire truck, you want to get rid of it."

"At least ten minutes."

"This time and again, this arm has long been useless."

"Trust me, it's fine! Get back to a safe place!"

Zhang Dingyuan's expression changed several times, and his legs, which were about to move, still stood in place.