At about 4 a.m. on October 15, 2015, a large truck with Shandong license plate loaded oranges from Chengdu and transported to Beijing by West Han expressway. From Qinling service area to k1136 + 500m where spontaneous combustion occurred, it passed through a continuous downhill section of 28 kilometers. According to the traffic police department, the main cause of the accident was that the driver frequently stepped on the brake on the long downhill section, resulting in overheating of the wheel hub.
The causes of truck spontaneous combustion are mainly divided into oil circuit, circuit, transportation goods and brake overheating. Our website also has a detailed article interpretation on the corresponding causes of fire. You can check it later in the relevant reading at the end of the article. Here we mainly talk about the mistakes made by the driver in this accident and the causes of wheel hub overheating.
According to the traffic police, the main reason for the accident was that the driver frequently used the brake, resulting in the soaring temperature of the wheel hub, and finally spontaneous combustion.
Xiaobian reminds all drivers that when driving on the highway, plan your own use time of sprinkling water, and try to choose a safe area in the parking area and service area to add water. Don’t stop and add water at will in the emergency lane. There are not only great potential safety hazards, but also 6 points will be deducted and a penalty of 200 yuan will be imposed.
For vehicles without automatic adjustment arm, when adjusting the brake, don’t blindly pursue the quality of the brake and adjust the brake too tightly. For friends who are not familiar with adjusting brakes, it is best to find a repairman. When a vehicle with adjusted brakes is driving on the road, be sure to check the temperature of the wheel hub at any time. Once any abnormality is found, it shall be handled in time.
Touching your hands is not only dirty, but also may burn your hands. Here is a small tool with the car. No friends have good temperature measurement results.
There are generally three reasons for poor brake return:
If there are no problems with the above two items, but the brake is still overheated, it is likely that the brake pad is too thin, resulting in the brake camshaft stroke is too long, the brake shoe cannot return, or the brake return spring breaks and falls off, and the lower half of the brake shoe contacts the brake drum to heat up.
The use of fake brake pads and brake drums will also cause brake failure, which is one of the culprits causing vehicle brake failure or brake overheating. Xiaobian suggests that you choose genuine brake accessories.
At about 4:00, the truck transporting oranges spontaneous combustion occurred in the downhill section from Qinling service area of West Han Expressway to k1136 + 500.
When driving downhill, don’t grade quickly in order to be in a hurry. No matter whether the vehicle has auxiliary braking or water spraying device, you should shift to low gear to control the vehicle speed within a reasonable range. During vehicle maintenance, you’d better observe and repair the key parts of the brake cylinder yourself to know well. Keep the habit of checking the hub temperature after parking, and repair it immediately if any abnormality is found.
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