Safety precautions for dump truck unloading

Points to keep in mind when driving a dump truck

When starting the dump truck, avoid excessive acceleration, and be attentive to blind spots while driving. During gear shifting, avoid forcing shifts and ensure proper coordination between engine speed and vehicle speed. While the vehicle is in motion, the power take-off unit must be disengaged. The manual control valve must be in the neutral position, and it is strictly prohibited to operate the manual control valve for lifting or lowering while driving. Ensure even distribution of cargo inside the cabin, and avoid severe uneven loading or dumping during operation.

Points to note when unloading a dump truck

Before unloading, always ensure there are no personnel on both sides and the rear of the vehicle, and frequently check the lifting limit device for integrity. During unloading, pay attention to ensuring the stability of the vehicle. Additionally, when raising the truck bed, control the engine speed to be within 2000r/min, especially after the truck bed has been raised to 40°. Avoid increasing the throttle to prevent damage to components such as the limit valve.

Points to keep in mind after unloading a dump truck

Some drivers are very careless. After unloading the dump truck, they drive off without waiting for the cargo bed to fully close and align with the chassis frame, which greatly increases the risk of tipping over. Therefore, it is essential to pay close attention throughout the unloading and driving-off process to ensure safety and avoid accidents.

Other points to note when using a dump truck

Do not abruptly push the lift handle to the "Lowering Position" midway during full load lifting.

If this operation mistake occurs, and the truck bed suddenly descends, it will exert significant impact force on the chassis, potentially resulting in accidents. Therefore, it is crucial to avoid the above operation as much as possible. If there are special circumstances requiring it, proceed with caution and try to slow down the descent speed.

After unloading, the power take-off unit must be disengaged before the dump truck can be driven.

If this operation is performed incorrectly, while driving, the dump truck's hydraulic pump will operate at high speed without load for an extended period because the power take-off unit remains in the "engaged" position, causing the hydraulic oil temperature to rise rapidly and potentially damaging the pump seals. Even more seriously, the pump's operation means that the hydraulic system has a power source, which may lead to accidents such as the truck bed automatically lifting during driving.

The power take-off unit must not be in the "Engaged/Connected" position while driving.

If it remains in the "engaged" state (with the red light on), the hydraulic pump will continue to rotate, providing power to the hydraulic system. This may result in the truck bed automatically lifting due to erroneous operation of the air control valve. Even if the air control distribution valve is in the "Lowering" position at this time, oil will still enter the pump, potentially causing damage to the pump.