D1284 Brake Pads

Misuse of handbrake

The handbrake is a very high-frequency brake system. Like the four-wheeled service brake, the handbrake will have a certain loss in daily use, but we can avoid unnecessary wear if it is used correctly. We know that when the brakes of the car are out of order, we can use the handbrake to decelerate, but some car owners worry about the braking effect, they will pull up the handbrake, which will damage the brake effect of the handbrake.

The mechanical handbrake is connected to the rear brake by a wire pull wire. This method is used to brake the vehicle. When the hand brake is pulled up, the spring is elongated; the handbrake is released and the spring returns to its original length. If you pull hard, it will wear the spring, causing the hand brake to decelerate. In fact, the handle can be pulled to 70% of the position to play the normal braking effect of the handbrake, so do not pull too tightly when using the handbrake to avoid damage to the brake system.

Brake pad noise problem

There are many factors that cause noise when braking a car. There are links to brake pads, brake discs and other related accessories.

We can take a look at the surface of the brake pads. If only a part of the brakes are scratched, it is very likely that the brake pads will be biased during installation. This needs to be removed and reinstalled.

If the noise suddenly occurs after driving for a period of time, the general reason is that the hard objects such as sandstone, iron scraps, etc. on the road are caught on the brake pads when the brakes are applied. This situation is not only audible, but also easy to damage the disc, but when the inspection is removed, foreign matter may have fallen off. In this case, it is easy to see that the wound disc only hurts one of the four surfaces of the two discs.

It is also possible that the size of the friction block of the brake pad is different, and the size of the friction block of the same type of brake pad is inconsistent, which results in different sizes, which increases the probability of friction between the brake pad and the brake disc. Generally, such a situation requires an optical disc, and it is necessary to let the vehicle travel for a period of time to make the disc frictionally match.

How to break in the newly replaced brake pads?

Although the brake pads of the car are small in size, the brake pads are particularly important for the distance of the few meters that the vehicle stops. Because the brake pads are wear products, they will gradually wear out during use. When they are worn to the limit position, they must be replaced. Otherwise, the brake effect will be reduced, and even safety hazards will occur, and the newly replaced brake pads also need to pass a certain running-in period. In order to effectively play its role.

The first step is to stabilize the brake pads. The first foot brake is first stepped on, then the second foot is slowly relieved, and then the brake pedal is slowly released according to the distance of the occurrence, and the appropriate speed is changed according to the speed of the vehicle, and the throttle is resumed to resume normal driving. This reduces the back and forth impact caused by the sharp changes in the speed of the vehicle. The second is to avoid emergency braking. Observe the road surface, decelerate the throttle in advance, and slowly press the brake pedal continuously. This early deceleration braking reduces the risk of emergency braking.