This article presents three little-known facts about trucks, including that the cab can be flipped for engine maintenance, the rearview mirrors are equipped with defrosting and deicing functions, and the small tank next to the fuel tank is an urea tank which is crucial for environmental protection. It helps readers understand the secrets behind truck designs and functions.

This article introduces the role of the control valve in the diesel pump, including controlling fuel quantity and stabilizing pressure; lists symptoms when it malfunctions, such as weakened power and increased fuel consumption; provides maintenance methods, and illustrates through cases that paying attention to the control valve can avoid unnecessary expenses.

The control valve is an indispensable core regulating component in the truck power system. Although it hides inside the machinery and keeps a low profile, it relies on its powerful functions to precisely command the rhythm of power output, comprehensively ensure driving safety, and intelligently adapt to various working conditions. With sophisticated design techniques and durable material selection, it can achieve a perfect balance between power and efficiency in various complex scenarios, and can be called the invisible cornerstone supporting the efficient and stable operation of trucks.​

This article elaborates on truck snow chains, including their important role on icy and snowy roads, applicable scenarios, selection methods, installation steps, and usage precautions. It aims to provide references for truck drivers to drive safely in icy and snowy weather and reduce accidents caused by slippery roads.