Thursday, July 9, 2020

Brake pad self-check 3 strokes, see thickness/listen to sound/feel the intensity

Nowadays, in addition to being a simple transportation tool, the car is also a life partner of many people. Many friends like to play and think about the car after work. Some friends, even if they don’t understand cars well, want to gain more car knowledge through their car experience, and use this knowledge to check their vehicles. Self-inspection tips hope to introduce some simple self-inspection methods within its power, so that the owner can learn more about the vehicle information in a timely manner even if he cannot replace or repair it by himself. Problem approach.

1. Look at the thickness

The thickness of a new brake pad is generally about 1.5cm, and the thickness will gradually become thinner as the friction is continued during use. Professional technicians suggest that when visually observing the thickness of the brake pads is only about 1/3 of the original thickness (about 0.5cm), the owner should increase the frequency of self-checks, ready to replace at any time. Of course, due to the design of the wheels, some models do not have the conditions for visual inspection, and the tires need to be removed to complete

Each brake pad has a protruding mark on both sides. The thickness of this mark is about two or three millimeters, which is also the limit of the thinnest replacement of the brake disc. If the thickness of the brake pad is already parallel to this mark, it must be replaced. Therefore, when the thickness of the brake pad is close to this mark, the owner must observe and prepare at any time, but it is difficult to accurately observe the naked eye without removing the tire. At present, many models have the position of the instrument hand brake light when the brake pad is too thin. It is suggested that it is more convenient to self-check.

Small suggestion: There is no strict replacement interval for brake pads according to the car environment and driving habits. Generally, replacement should be considered when driving for about 60,000 kilometers. When visual observation reveals that the brake pads are thinner, technicians should be required to check them during maintenance, because visual observation will inherently have errors, and professional maintenance stations should be more rigorous than visual observation through calipers.

2. Listen to the sound

If the brake sound is accompanied by the sound of "iron rubbing iron", the brake pads must be replaced immediately. Because the limit marks on both sides of the brake pads have directly rubbed the brake disc, it proves that the brake pads have exceeded the limit. In this case, you must cooperate with the brake disc inspection when replacing the brake pads. When this sound occurs, the brake discs have often been damaged. At this time, even if you replace the new brake pads, the noise cannot be eliminated. In severe cases, you need to replace the brake discs. .

Tip: It is often too late when you hear the brakes, and the brake discs will be damaged more or less. The price of the brake disc is much higher than that of the brake pad, so it is recommended that you check the brake pad frequently to avoid damage to the brake disc.

3. Feel the intensity

When the brake pads become thinner, our braking effect will be affected. At this time, the brake pedal needs to be depressed more deeply to achieve the braking effect that can be achieved by lightly pressing. The braking effect of the first half of the journey is significantly weakened, and many people feel that their The brakes have become soft and can't stop a bit. At this time, check whether the brake pads need to be replaced.

Small suggestion: This method is relatively abstract, and it may be a bit difficult to grasp according to the feeling, so it is important to develop a good self-check habit. In addition, the reduction of the braking effect will lead to an increase in the consumption of brake fluid, so it is important to check the condition of the brake fluid when replacing the brake pads.

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