Safe Driving Tips for Semi-Trailers When Loaded

Shandong Trailer Factory today analyzed the issue of how to correctly operate a semi-trailer after loading to ensure driving safety is not compromised by the inertia caused by the load.
Due to the effect of gravity, semi-trailers experience greater assistance when going downhill. Depending on the length and steepness of the slope, it is advisable to shift into a lower gear in advance, utilizing both the engine's braking effect and the brake system to control speed and maintain an appropriate downhill speed. Avoid prolonged use of the brakes to prevent overheating of the brake drums, which could lead to brake failure. A semi-trailer consists of several components, including the frame assembly, axles, suspension system, support devices, lighting signals, air brake system, and the container body. The frame is constructed by welding two longitudinal beams with several crossbeams, side beams, and diagonal braces. The longitudinal beams are welded I-section beams, with brackets welded underneath for installing the axles and suspension system. The frame is covered with steel plates, with the container walls surrounding it. The front underside of the frame is equipped with a 90-degree hitch pin and a hitch plate for connection to the tractor. This describes half of the semi-trailer's structure, so special attention should be paid after loading.
When driving on regular roads, it is important to appropriately increase the turning radius when making turns. For meeting, yielding, or avoiding obstacles, measures should be taken in advance, avoiding sudden steering wheel movements at the last moment. Due to the greater driving inertia compared to an unloaded vehicle, braking or stopping should be initiated earlier to ensure effective braking and to avoid emergency stops. Choose a safe location for parking, paying attention to the solidity of the roadside curb, and avoid parking too close to the edge. After stopping and turning off the engine, engage a low gear—first gear for uphill and reverse gear for downhill—and firmly apply the handbrake. When parking on a steep slope, place triangular blocks or large stones under the wheels to prevent the vehicle from rolling.