How often should the rear brake drum be changed？
The rear brake drum is generally recommended to be replaced at about 60,000 kilometers, but this time is not absolute, because the replacement cycle of the brake drum will be affected by a variety of factors, including the type of car, car habits and road conditions.
Car type and driving habits: Different types of cars and different driving habits will have an impact on the degree of wear of the brake drum. For example, if the driving style is more gentle, the brake drum may last longer.
Road conditions: Driving road conditions can also affect brake drum wear. Frequent use of brakes on poor road surfaces may cause brake drum wear to accelerate.
Safety warning: Modern vehicles are usually equipped with brake pad alarm lights, when the brake drum wear to a certain extent, the alarm light on the dashboard will light up, which is an important reminder signal. For low-grade models without brake pad alarm lights, the owner needs to pay more attention, and can judge whether it needs to be replaced by observing the thickness of the friction block in the gap between the brake drum and the wheel hub.
In addition, although some information mentions that the replacement cycle of the rear brake drum may be between 60,000 and 100,000 km, most information recommends a replacement cycle of about 60,000 km. This shows that while there is some variation, 60,000km is generally seen as an important reference point.
In summary, although the replacement cycle of the rear brake drum may vary depending on the vehicle and the conditions of use, in most cases, it is recommended to check and consider replacement when the driving reaches about 60,000 kilometers to ensure driving safety.
Why is the rear wheel drum brake abnormal sound?
The abnormal sound of the rear wheel drum brake is caused by the brake shoe friction plate grinding away or the uneven tensioning force of the left and right brake shoes.
Drum brake concept:
The drum brake is a brake device that uses the stationary brake pads in the brake drum to rub the brake drum that rotates with the wheel to generate friction to reduce the wheel rotation speed. When the brake pedal is pressed down, the force of the foot causes the piston in the brake master pump to push the brake oil forward and create pressure in the oil circuit. The pressure is transmitted to the brake pump piston of each wheel through the brake oil, and the piston of the brake pump pushes the brake pads outward, so that the brake pads friction with the inner surface of the brake drum, and produce enough friction to reduce the speed of the wheel to achieve the goal of the brake.
Abnormal sound causes and solutions:
There is oil between the brake shoe of the drum brake and the brake drum, resulting in a sharp sound of skidding. Solution: Flush brake drum and brake shoe with alcohol to remove oil. The surface of the brake shoe of the drum brake is too smooth, resulting in a sharp sound of skidding. Solution: Polish the surface of the brake shoe with 800# sandpaper to increase the friction of the brake shoe.
Rear brake drum hot why?
The reasons for the hot rear brake drum may include poor oil return of the brake pump, braking too frequently, brake drum spring damage or other failures resulting in brake pads can not be returned, and improper brake adjustment.
Poor oil return of the brake pump may lead to brake drag. In this case, it is necessary to stop driving and overhaul the vehicle brake pump. If the pump fails, it needs to be replaced in time.
In the process of driving the brake is too frequent may also cause the brake drum heat, the vehicle driving, should try to avoid frequent braking, otherwise not only easy to cause the brake disc overheating damage to the brake disc, more likely to cause damage to the car tire, starting and automatic transmission.
Brake drum spring damage or other failures lead to brake pads can not be returned, the need to check the brake system in time, such as failure need to replace parts in time.
Improper brake adjustment may also cause brake drum fever, the solution includes normal use of the process will be hot, if not used also fever, you have to go to the 4S shop to check and adjust.
The brake drum, also known as the brake drum, is the main component of the drum brake system, and the inner surface of the brake drum plays the role of braking when braking. The rear wheel brake drum is hot while not hot may be a problem with the brake pump, such as the piston of the brake pump can not be returned, and the situation of dragging brake will cause the temperature of the brake drum to rise abnormally.
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