What you need to know about truck brake discs
The brake disc is a very important part of the brake system. It is a disc that rotates with the wheel hub when the car is running. If the brake disc is damaged and is not replaced in time, the heat dissipation effect will become worse, and the heat capacity will become worse, which will cause the braking effect to become worse. However, a brake disc in good condition will make the brakes more stable, driving more comfortable, and there will be no excessive noise during the braking process. So in order to maintain the good performance of the vehicle, it is necessary for you to understand some basic knowledge of truck brake discs.
Brief Introduction of Brake Disc
Automobile brake discs are divided into two categories, namely drum brakes and disc brakes (disc brakes). Many of the old models are front and rear, but many of the current cars are brake. Because the disc brake has a good heat dissipation effect, braking under high-speed driving is not easy to produce thermal degradation, so its high-speed braking effect is good. But in the low-speed cold brake, the braking effect is not as good as the drum brake. Because the price of disc brakes is relatively expensive, ordinary cars generally use front and rear drums. Most heavy trucks use drum brakes, because the advantage of drum brakes is that they will be stronger when braking, which can effectively brake heavy trucks.
The external structure of the brake drum is like a drum, and there is a telescopic device inside, and the outermost layer of the device is two friction plates. When the brake is stepped on, the two brake shoes are externally stretched under the action of the brake wheel cylinder, supporting the brake shoes and rubbing against the inner wall of the brake drum to slow down or stop.
The function of brake disc
Braking of brake discs is very important for trucks. The safety problem is that every car owner should pay special attention to it. In an emergency, every time the brake pedal is stepped on, the brake oil in the oil pipe is pushed, and the brake oil is pushed to the brake caliper, causing the brake caliper to squeeze the brake disc to form a braking force, and finally achieve deceleration or stop The effect. When the brake pedal is released, the brake pads also lose the fixing force on the rotor, and the truck can move unimpeded.
What are the symptoms of a broken car brake disc?
Due to daily driving and inevitable wear and tear, damage to the brake disc is also inevitable. Considering safety, we check the braking system at least once a year. Every time you change tires, you must check the condition of the brake disc. Regular inspections can find and solve problems in time. The following can help you clearly determine whether the problem has occurred.
1. The car shakes when braking.
Due to rust, overheating and other reasons between the brake discs, the brake discs will wear unevenly, and the car will shake when braking. It often appears on some old cars. At this time, the brake disc should be checked in time.
2. Abnormal noise occurs when braking.
When braking, the metal friction sound of sharp ears is probably caused by the rust of the brake disc, the thinning of the brake pads, and the poor quality. It is best to go to the repair point for inspection.
3. The braking distance becomes longer and deviated.
The most obvious phenomenon is that the brake travels a long distance to stop, which is largely due to damage to a certain part of the brake system. The brake pads and brake discs do not work perfectly, making the driver feel that it takes a long time to stop. Sometimes it will shift to one side when braking, which is mainly due to partial wear of the brake pads or problems with the brake cylinder. This kind of phenomenon is very dangerous. If you find this situation while the truck is driving, replace or repair the brake discs in time.
4. Rebound when stepping on the brake
If the brake pedal rebounds when the brake is stepped on, this situation is mostly caused by uneven surfaces of brake discs and brake pads, and deformation of steel rims.
Conclusion
In view of the importance of truck brake discs to driving, if the above situation occurs, one brake disc should be thoroughly checked. We should also pay attention to our daily driving. After all, the braking effect has a great impact on our driving safety. It is best practice to identify problems and solve them in a timely manner.