The handbrake of the car is not working, how can I fix it myself?

Generally speaking, the car handbrake is not working, which is caused by the brake pads of the handbrake being worn too badly, and it is good to replace the brake pads appropriately. It is also possible to solve the problem of ineffective brakes by adjusting the operating copper cable of the handbrake. The adjustment mechanism of some cars is located at the bottom of the car, and if it is not convenient to operate, it can be handed over to professional maintenance personnel to deal with.

There is an adjustable compensation mechanism at the junction between the bottom of the handbrake handle and the copper cable, and the length of the copper brake cable can be stretched by loosening the lock nut with a wrench. The handbrake is also known as the auxiliary brake, which is connected to the rear brake shoe by a steel wire cable to brake the car. Long-term use of the handbrake will cause plastic deformation of the wire, and since this deformation is irreversible, long-term use will reduce the utility, and the travel of the handbrake will also increase.

Hello, if the handbrake is incurable, you first need to see what form of your handbrake is, whether it is a hoof or a disc. If it is a shoe type, you need to check whether the shoe is worn. Does the handbrake pull cord?

It is also possible to be elongated. Turn it on and see if you can adjust the handbrake. If it is a butterfly type, many handbrakes cannot be adjusted.

You may need to replace the brake pads, if it is an electronic handbrake, it generally cannot be adjusted, but it can be matched or reset with a diagnostic instrument, I hope mine can help you.

First check the hand brake drawing, whether the buckle is loose, or the drawing is broken, if so, replace the drawing.

Check whether the handbrake drum is normal, if the handbrake shoe is damaged, the handbrake shoe can be replaced.

The brakes of the car are generally the cause of the brake pads, check the brake pads first, if it is not to look at the brake oil, check the brake line.

The handbrake fails, of course, because the number of times it is used increases, and then the handbrake efficiency slowly decreases. As for not being easy to be discovered, there are two main points, one is the itself, and the other is the environment.

The handbrake is not like the foot brake, when the braking effect changes, it will directly react to the braking distance and it is easy to find.

It is not easy to find out the reason for the failure of the handbrake due to the environment:

1. Most of the vehicles are parked on the flat ground, and the handbrake can not be found at all, especially if the automatic transmission is hung to the P gear, there will be no slipping.

2. When doing car maintenance, few car mechanics will help you check the handbrake.

In real life, many times it is because the owner thinks that he has pulled the handbrake, but in fact, the accident occurs because the handbrake fails or the position of the puller does not reach its working point.

4 incorrect usages that can easily cause the handbrake to malfunction.

1. The handbrake is often full.

Some car owners will be accustomed to pulling the handbrake to the most tense state after parking the car, if this is the case for a long time, it will make the handbrake spring and cable return ability decrease, or even deformed, resulting in a shortened service life. The correct way to use it should be to pull the handbrake to eight points full, and the car can stop steadily.

2. Do not pull the handbrake when parking.

Some car owners have an urgent matter, just park the car and get out of the car in a hurry, the handbrake has forgotten to pull, if the car is parked in a place with a certain slope, then the phenomenon of rolling will occur, if it is a car that hits someone else's vehicle, when the time comes to pay for repairing the car, not to mention, but also to lose money to others.

3. Pull the handbrake for ramp parking.

Sometimes due to terrain restrictions, you can only park on the ramp. And when the handbrake is pulled when parking on the ramp, the loss of the handbrake is very large. But there are many people who think that pulling the handbrake is enough, in fact, this is not right, the correct way should be to stop and pull the handbrake, check whether there are stones or bricks around, and put them under the wheels.

4. Do not let go of the handbrake when you start.

This situation almost always occurs in novices or female drivers, who may forget to release the handbrake due to nervousness when the car starts, and then hang the gear and step on the accelerator, just feel that they can't raise the speed. Driving with a handbrake will cause serious wear and tear on the brake disc, and the handbrake cable will also be loose. Therefore, when you start a novice driver, you must check whether the handbrake is loose before driving.

How does the handbrake system brake?

In the vast majority of cars and light vehicles we come into contact with, the handbrake system acts on the rear wheels. The form of the rear brake is different, and the handbrake has two working environments:

1. Drum brake.

On the rear wheels where the drum brake is installed, because the drum brake itself can double as a parking brake, the shoe and friction plate in the brake drum are engaged when parking, so that the braking force can be generated.

2. Butterfly braking.

On the rear wheels with disc brakes (disc brakes), since there is no brake drum, an additional parking brake drum must be installed in the center of the brake disc to allow the handbrake to do the job.

When we use the handbrake, if it is the handle, just gently pull it up or the electronic handbrake to pick it in, and the brake is very convenient.

One. If the car is not in use.

Go to the repair shop for repairs and change the brake pads.

Two. If you're on the go.

1. Control the direction according to the road conditions and speed, disengage the high-speed gear, and at the same time quickly blast the empty fuel and shift the high-speed gear into the low-speed gear. In this way, the engine will have a lot of traction resistance and the speed of the vehicle will be reduced rapidly. In addition, the handbrake should be used in conjunction with the low-speed gear shift, but it should be noted that the handbrake should not be tightened or pulled too slowly.

If it is pulled too tightly, it is easy to make the brake disc "lock", and it is likely to damage the transmission parts and lose the braking ability; If it is pulled too slowly, the brake disc will wear and ablate and lose its braking effect.

2. Use the bumper, carriage and other rigid parts of the car to rub and collide with natural obstacles (rocks, trees or soil slopes) on the side of the road to achieve the purpose of forcibly stopping and getting out of danger, and reduce the accident loss as much as possible.

3. If the brake fails when going uphill, it should be reduced to medium and low gear in time to maintain sufficient power to drive uphill to the top of the slope and stop. If you need to park on a half-slope, you should keep the forward low gear, tighten the hand brake, and the personnel with the vehicle should use stones, skids and other objects to jam the wheels in time. If there is a backward slippage, the rear of the car should face the hillside or the safety side, and the headlights and emergency lights should be turned on to attract the attention of the vehicles in front and behind.

4. When the downhill brake fails and the speed of the vehicle cannot be controlled by the mechanism of the vehicle itself, the driver should decisively use natural obstacles, such as rocks and trees on the side of the road, to cause resistance to the car. If you can't find a suitable terrain or object to use for a while, in an emergency, you can move one side of the car closer to the side of the mountain, and gradually reduce the speed of the vehicle by rubbing to increase the resistance.

5. The vehicle should step on the brakes when going down a long slope or a steep slope, regardless of whether there is a situation or not. It can not only test the performance of the brakes, but also buy time to control the speed of the vehicle when the brakes are found to be out of order, also known as predictive braking.

The handbrake on the car is the main part of the anomaly, so what is the cause of the failure of the handbrake of the car? How did you brake?

What is the cause of the failure of the car handbrake:

The failure of the handbrake is of course due to the increase in the number of uses, and then the effectiveness of the handbrake gradually decreases. As for not being easy to find, there are two main points, one is itself, and the other is the environment.

The handbrake is not like the foot brake, when the braking effect changes, it will be directly reflected in the braking distance and it is easy to find.

Due to the environment, it is not easy to find the reason why the handbrake fails

1. Most of the vehicles are parked on the flat ground, and the handbrake can not be found whether it has changed.

2. When doing car maintenance, few car mechanics will help you check the handbrake.

In real life, many moments are caused by the owner of the car who thinks he has pulled the handbrake, but the accident occurs because the handbrake fails or the position of the handbrake is not at its point.

The reason for the failure of the handbrake is: it may be that the braking system of the car is faulty, if the brake fails during driving, then the car should be disengaged from the high-speed gear of the car and switch to the low-speed gear; If the brakes fail when going downhill, you can use the method of friction between the car and the obstacle to make the car produce resistance, if you can't find a suitable object, you can try to get closer to one side, use the side of the body to rub against the obstacle, and gradually reduce the speed. Electronic parking brake, also known as electronic parking brake system, refers to the technology that integrates the temporary braking function during driving and the long-term braking function after parking, and realizes the parking brake by electronic control.

It is recommended to check the wear and tear of the rear brake pads, if they are too thin, the rear brake pads need to be replaced. Check and adjust the handbrake cable when the brake pads are fine. If you simply adjust the handbrake adjustment screw, this is incorrect.

The detailed steps are as follows:

First of all, find a level place, and if the place is uneven, find something to pad the wheels to prevent the vehicle from sliding.

1. Open the handbrake cover;

2. Loosen the handbrake adjustment screw (look at it, it is loose. The screws are generally loose to about 4-5 mm from the top;

3. Start the vehicle, pull the handbrake with greater force while stepping on the brake, about 10 times, and stop after feeling the strength;

4. Tighten the handbrake adjustment screws about the circle;

5. Release the handbrake, about 4 sounds for general stop (4 times is enough for ordinary parking, don't pull to 7 times every time), and you should not be able to pull after 7 sounds. If you don't get the effect, you can adjust the screws directly.

If it still can't be solved, it is recommended to check the front and rear cables of the handbrake.

Why does the car handbrake fail? How to maintain the car handbrake correctly! Many times when we use the car, we will encounter the appearance of the car handbrake failure, what is the reason for the handbrake failure?

How to maintain the car handbrake in daily life? Today we will bring you a tutorial on car handbrake maintenance skills, a must-see for novices!

1. Don't pull it too tightly.

Remember not to pull too tightly in daily use, because excessive stretching of the metal cable or long-term stretching will accelerate its deformation and aging, resulting in loose handbrake or broken cable. The correct way is to pull up the handbrake until the rear wheel is locked and then lift it upwards to ensure that the car does not slip.

2. Do not pull the handbrake on the ramp for a long time to park.

**。Parking on a ramp for a long time, parking with the handbrake alone will accelerate the wear and tear of the handbrake cable. The correct way is to park the car with the handbrake after parking, and then put a brick or something at the front of the wheel facing the bottom of the slope, release the handbrake to transfer the force to the wheel, and then pull up the handbrake.

3. Do not pull the handbrake after washing the car in ice and snow and in winter.

**After driving on snow and ice roads in winter, pulling the handbrake may freeze the snow and make the vehicle unable to drive. In addition, when washing the car in winter, you should also be careful not to pull the handbrake, and you can use gears or bricks instead of the handbrake to park.

Fourth, the electronic handbrake needs to pay attention to things.

Compared with the traditional mechanical handbrake, the electronic handbrake is simple and beautiful in appearance and easy to use. However, the electronic handbrake uses an electronic cord reel, which has a corresponding time in the process of tightening and releasing it, generally seconds, which is slightly slower than the mechanical one. Although it is only 1 second, the handbrake has not been fully released, and the accelerator of the fast-paced owner will be pressed, which will also cause aging and damage to the handbrake system.

As long as you drive out, you will use the handbrake, the handbrake system is used very frequently in daily use, and the correct use of the handbrake can ensure its long-term stable work.

Especially the mechanical handbrake, some of the acute sub-owners of the car has not stopped steadily, the handbrake is pulled up, and some people are careless, the handbrake does not put down and starts to drive, these operations are very damaging to the handbrake. Good usage habits can reduce maintenance costs, increase service life, and ensure safety.

The specific reason for the failure of the automobile handbrake is not only a single situation, the general structural form of the handbrake system is composed of brake discs, brake friction pads, pressure devices (springs or hydraulic pumps), pressure conduction mechanisms, and operating mechanisms (mechanical handbrakes or electronic handbrakes), and the failure of any component of the structure can cause the brakes to fail.

Brake discs

The brake disc is hard connected to the wheel, and the brake pads squeeze the brake disc to achieve vehicle braking. When the same braking force is applied, the larger the contact surface between the brake disc and the brake pad, the stronger the braking force, and the weaker the braking force is on the contrary. Insufficient flatness or cambering of the brake disc reduces the contact area between the brake disc and the brake pads, thereby reducing the braking force.

The solution is to replace the brake disc or repair the brake disc.

Brake pads

Brake pad is a material that provides friction force, which is a vulnerable material, with the use of wear, the thickness of the brake pad gradually decreases, and its friction coefficient is gradually reduced, and the braking force provided by the brake friction pad that reduces the friction coefficient also decreases when the same braking force is applied. The solution is to replace the brake pads.

Pressure device

Different handbrake systems have different pressure device structures, the electronic handbrake pressure device is an electric motor, the mechanical handbrake pressure device is applied by the driver, and the significance of the pressure device is to provide pressure to the brake friction pads. If the pressure device is faulty, the supply pressure is insufficient. will reduce the braking effect of the handbrake system.

The workaround is to replace or repair the motor.

Pressure conduction mechanism

The pressure conduction mechanism usually appears in the mechanical handbrake system, generally the steel wire, when the handbrake system is in the working state, the steel wire is in a tight state, and the mechanical fatigue will occur in the steel wire after long-term use, and the handbrake operating mechanism in the same position, the tensile force provided by the steel wire after fatigue will be reduced, and the steel wire with reduced tensile force will lead to a decrease in the braking force of the vehicle. The solution is to replace the brake wire.

Operating mechanism

The operating mechanism of the handbrake usually refers to the handle and limiter of the mechanical handbrake, and the operating mechanism of the electronic handbrake is to provide a signal device, which is not easy to break. The stopper is a device that fixes the torque of the handbrake, and if the stopper is stuck or cannot provide a high-strength limit, the braking force of the vehicle will be reduced. The workaround is to replace or repair the stopper.

The above is the cause of the failure of the vehicle handbrake system may be the cause and components, it needs to be explained that the architecture and components of the handbrake system between the models may not be exactly the same, when it is found that the vehicle handbrake system failure should be timely requested to ask professional technicians to intervene in repair or adjustment, do not use it.