What should I do if the car brake cylinder does not return?

1. Replace the damaged rubber sleeve with a new one.

Once the rubber sleeve is damaged, it will cause the internal oil of the brake cylinder to be consumed quickly, and sometimes after the rain erodes, it will cause some small parts in the brake pump to rust, resulting in the brake cylinder not returning. So at this time, you only need to replace the damaged rubber sleeve with a new one.

2. Replace the faulty brake cylinder.

When other small parts of the brake system fail, they are still integrated with the brake cylinder. This will also lead to the situation that the brake cylinder does not return. Therefore, when this situation occurs, it is necessary to replace the faulty brake cylinder with a new one.

3. Change the brake fluid with a new one.

The brake cylinder does not return, most likely because the brake fluid has not been replaced for a long time. When the brake fluid is not replaced in time, the brake will not return. So we just need to change the brake fluid to a new one.

Symptomatic phenomenon of brake cylinder not returning:

1. The brake cylinder does not return, simply put, after stepping on the brake pedal, the pedal does not rise and has no resistance, even if you do not step on the brake pedal, you still feel that the car resistance is large, and even if it is critical, the wheel can be locked;

2. At this time, we need to check whether the parts of the air brake master cylinder and sub-cylinder are damaged, or whether there is rust inside the brake sub-cylinder;

3. But no matter what the reason, it basically needs to be dealt with immediately, after all, the non-return of the sub-pump will affect the safe driving at the same time.

If it is rusty inside, just disassemble the sub-pump and then polish the rusty fine sandpaper with fine sandpaper. Of course, we can also apply engine oil, which will prevent it from rusting again. It can be taken apart to clean the piston of the brake cylinder before changing the brake fluid.

The brake cylinder does not return, simply put, even if you don't press the brake pedal, you still obviously feel that the car has a lot of resistance, and in serious cases, you will make abnormal noises and even have the wheels locked. The reason for this phenomenon is generally that the brake fluid is not changed for a long time, which leads to the repair of the brake cylinder. The non-return is caused by damage to the rubber sleeve, resistance piston, rust and other reasons.

Carefully clean and replace the rubber sleeve, you can solve the problem and calculate it to see whether to repair or replace it with a new one.

Before replacing the centrifugal pump, completely disassemble the new centrifugal pump and use carburetor cleaner to clean the protective oil that was applied before leaving the factory. After cleaning, the piston is installed throughout the centrifugal pump chamber and medical petroleum jelly is applied. All dustproof rubber is coated with petroleum jelly, the general car brake cylinder will not be in place will cause the problem of biting the brake, the brake cylinder generally can not be opened for maintenance, you need to replace the brake cylinder can be restored to normal, it is recommended to go to the repair shop to check it.

Wheel bearing lack of oil, excessive wear and tear lead to wheel locking, failure to brake the vehicle handbrake does not return, may be the handbrake is frozen, the handbrake is rusty resulting in poor return, handbrake return spring failure and other reasons, not return is very common in the northern winter! Water gets into the brake pads after car wash and snow day driving! Caused the brake pads to freeze!

So put it down and don't go back! You can put it in the basement to thaw! Or let it thaw in the sun!

Of course the car thoroughly! If you can't move, take a pot directly, which may cause water to enter the north after the handbrake cable is rusty or the skin is damaged (the wheels can't be turned); In some cases, the inside of the rear brake device is rusted or stuck (such as drum brakes), resulting in the inability to return normally.

The handbrake is braked by pulling the wire, and the return is completed by the spring at the end of the hanging line. Try to move forward! Backwards!

Just try a few more times! Note that after the rain, try not to stop for too long after the car is driven! Cause rust on the brake disc or drum!

If the buckle falls off or the chassis is damaged by rubbing, it will cause the handbrake to return to the fault, go to the repair shop to see.

It can also be repaired, but I suggest that you replace it with a better one, because there is a risk of breaking it again after repairing, so buy a new one directly, and it will definitely not continue to break.

OK. Because it is a common fault that the car brake cylinder always does not return, it can be repaired.

In this case, it can be repaired, but it also takes a lot of time to repair, and it usually needs to be sent to the repair shop to complete.

After the brake is pressed, the master cylinder generates a thrust to press the hydraulic oil to the cylinder, and the piston inside the cylinder begins to move under hydraulic pressure to push the brake pads. The oil brake is made up of a brake master cylinder and a brake fluid reservoir. They have the brake pedal attached to one end and the brake hose to the other.

The brake master cylinder is stored with brake fluid, and there are oil outlets and oil inlets. When the brakes are applied, the oil outlet opens and the oil inlet closes. Under the pressure of the piston of the pump body, the brake oil pipe is squeezed out of the oil pipe and flows to each brake cylinder for braking function.

When the brake plate is released. The oil outlet in the brake master cylinder will be closed, and the oil inlet will be opened, so that the brake fluid will flow back from each brake cylinder to the brake master cylinder and return to the original state.

If the brake fluid is not changed for a long time, it will cause rust on the inside of the brake cylinder, which can be greased. Try to use it again. If the catheter cannot be removed again, sandpaper the two mounting fixing bolts of the slave pump and try to apply butter.

If this is not enough, the driven cylinder can be replaced with a new one. After replacement, add a new brake fluid. Be careful not to add too much brake fluid.

Try to see if the brakes can come back. The caliper accuracy is not good, resulting in the piston not returning normally. The accuracy of the brake pads is poor and too thick, resulting in the piston not returning normally.

It can be thinned with a steel file. Automobile brakes are divided into pneumatic brakes and hydraulic brakes. The air brake consists of an air compressor (commonly known as an air pump), at least two air reservoirs, a brake master cylinder, a front wheel quick release valve, a rear wheel relay valve, four brake cylinders, four adjusting backrests, four cams, eight brake shoes and four brake shoes.

The oil brake consists of a brake master cylinder (hydraulic brake cylinder) and a brake reservoir. Heavy trucks use air brakes, while regular cars use oil brakes, so both the main and slave brake cylinders are hydraulic brake cylinders. The brake master cylinder (hydraulic brake cylinder) is an indispensable part of the braking system.

When braking, the brake plate is depressed, and the brake master cylinder delivers brake oil to each brake master cylinder through the pipeline. The brake cylinder has a connecting rod to control the brake shoes. When braking, the brake oil in the brake oil tube pushes the connecting rod on the brake cylinder, causing the brake shoe to tighten the flange on the wheel and stop the wheel.

The technical requirements of automobile brake cylinder are high because it directly affects people's lives. If you do not change the brake fluid for a long time, the inside of the brake follower cylinder will rust, the fixing screws of the brake follower cylinder and suspension will be greased, and finally loaded and sanded with fine sandpaper. The duct is located on the outside of the set screws of the brake cylinder and suspension, i.e. in the holes of the two fixing bolts of the brake cylinder.

The brake cylinder can be removed, the tube removed, sanded with fine sandpaper, then greased, and finally loaded, and the problem should be solved. The accuracy of the brake pads is poor and too thick, resulting in the piston not returning normally. Before replacing the slave pump, completely disassemble the new slave pump and clean the protective oil applied before leaving the factory with carburetor cleaner.

After cleaning, apply medical petroleum jelly to the entire piston from inside the pump chamber and fit in place. Finally, apply petroleum jelly to the dust glue at both ends, and paste petroleum jelly on the entire space from the piston to the dust glue, and finally exhaust it. It is best to replace the brake fluid so that the brake pump does not rust easily.

Every part of the trolley is important and should be installed.

The solution to the abnormal noise of the automobile brake cylinder is: 1. Check the brake cylinder, if the piston ring of the brake cylinder is stuck, the brake cylinder needs to be replaced; 2. If the iron plate of the brake cylinder is deformed, the iron plate needs to be fixed. The causes of abnormal noise of automobile brake cylinders are:

The guide pin of the sub-pump is loose or rusted and oxidized. The brake cylinder is an indispensable part of the braking system, its function is to push the brake pads, the brake pads rub the brake drum, so that the vehicle speed is reduced and stationary, after stepping on the brakes, the master cylinder generates thrust to press the hydraulic oil to the cylinder, and the piston inside the cylinder begins to move by hydraulic pressure to push the brake pads.

You should go to the repair shop for a repair inspection, and at the same time, you should also check some faults of the car to solve these problems so as not to cause accidents.

It is very important to check if there is a problem with the air brake master cylinder, and it is very likely that there is damage here, which is why this is the case.

Drive the car directly to the repair shop, let the professional master see what is wrong, and then repair it.

It can be taken apart to clean the piston of the brake cylinder and then change the brake fluid. Symptoms of brake cylinder non-return:

1. The brake cylinder does not return, simply put, after pressing the brake pedal, if the pedal is neither raised nor resistant, even if the brake pedal is not pressed, it is still obvious that the car resistance is large, and even if it is serious, the wheel will be locked;

2. At this time, we need to check whether the parts of the air brake master cylinder and sub-cylinder are damaged, or whether there is rust inside the brake sub-cylinder;

3. But no matter what the reason is, it needs to be dealt with in time, after all, the non-return of the sub-pump directly affects the safety of driving.

The abnormal sound of the brake cylinder may be the cylinder stuck, or the iron plate of the fixed brake pad of the brake cylinder is deformed, it is recommended to go to the repair shop to check it

1. The brake cylinder is an indispensable chassis brake part of the braking system, and its main role is to push the brake pads, and the brake pads rub against the brake drum;

2. Reduce the speed of the vehicle and stand still. After stepping on the brake, the master cylinder generates thrust to press the hydraulic oil to the cylinder, and the piston inside the bridge of the cylinder is forced by the hydraulic force and begins to move to push the brake pads;

3. The hydraulic brake is composed of a brake master cylinder and a brake oil storage tank. One end of them is connected to the brake pedal, and the other is connected to the brake hose. The brake master cylinder is stored with brake fluid, and there are oil outlets and oil inlets.