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2025
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Eliminating Self-ignition Hazards: Analysis of 5 Common Causes of Brake Overheating
Vehicles are running fine on the road, the temperature is not high, yet the tires suddenly catch fire, which is a bit unbelievable for most people who have never dealt with trucks. However, for those who frequently drive, it's not something new. A few days ago, a forum user named 'One Pull Three' posted an article titled 'Self-Rescue Methods for Trailer Tire Fires,' which attracted a lot of attention from truck drivers. Today, let's talk about the issue of brake overheating.
We all know that when a vehicle is operating normally, the temperature of the tires and brake drums generally won't be too high. However, after descending a steep slope or applying the brakes several times, the temperature of the tires and brake drums will rise immediately. The heat generated mainly comes from the friction between the brake pads and the brake drums.
When running on the road, if the brake drum or tire temperature is too high, it is likely due to abnormal friction in the brake system. This not only increases fuel consumption but also exacerbates the wear on the brake pads, and in more serious cases, it could lead to spontaneous combustion of the vehicle. Here, I have summarized a few reasons and solutions for your reference.Reason 1: Lack of regular maintenance, leading to poor brake return.
Insufficient lubrication between components usually leads to rust, affecting flexibility and causing poor return. Solution: Strengthen inspections between components to avoid lubrication issues. Reason 2: The strength of the brake caliper return spring is insufficient.
In addition to lubrication and maintenance, the effectiveness of the brake return is also greatly related to the return spring in the brake caliper. Solution: Replace the return spring in the brake caliper. You can refer to the previous article "Stopping at 70 km/h in 40 meters: Perfect Solution to the Tianlong Brake Problem." Reason 3: Air leak in the brake air circuit "Automatic Brake"
Air leaks in the braking system can also cause the brakes to overheat. Some drivers enjoy modifying their vehicles with high-performance brakes, but such components generally lack quality assurance, so caution is advisable during use.Solution: Use compliant automotive parts and conduct regular inspections.Reason 4: Improper brake adjustment leading to overheating.
For safety reasons, we need to frequently adjust the vehicle's brakes to achieve optimal condition. If the brakes are tightened too much, abnormal friction can exacerbate brake overheating.Solution: After adjusting the brakes, do not rush to drive. Frequently check the temperature of the brake drum; if the temperature is too high, it usually means the brakes are tightened too much, just loosen them a bit.Reason 5: The brake drum is out of round.
The deformation of the brake drum is another reason that leads to brake overheating. Truck drivers should pay more attention to this. Solution: Replace with qualified brake drums. ● Postscript: The issue of truck brake overheating is indeed complicated by various limiting factors, making it not very convenient to address, such as having many tires, high rolling resistance, and the absence of better inspection methods. However, small oversights can often lead to extremely serious consequences, making regular checks extremely important. Although it is inconvenient to handle, it is necessary to persist in doing so. For brake overheating, if anyone has their own experiences, feel free to reply and share with everyone.
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