Dump trailers are easy to lose balance on sloped terrain, which can lead to rollovers, shifting goods and hydraulic system problems. Before starting work, operators need to confirm the slope degree. Normal operation is acceptable for slopes below 20%, while slopes between 20% and 30% need the manufacturer's permission first. Any slope steeper than 30% is not allowed for operation at all. Operators should check the working area carefully for soft soil, uneven ruts and dangerous edge drops, and remove all barriers while keeping irrelevant people away from the site. It is necessary to check tires, brakes, hydraulic parts and load fixing devices. Cargo should be placed evenly, fixed firmly and cannot exceed the trailer's load limit. When driving a loaded trailer on slopes, workers can only move slowly uphill. Sudden acceleration, emergency stops and sharp turns are forbidden, and driving sideways across slopes must be avoided to prevent tipping.
Unloading on slopes is the most dangerous part of the work, so it is best to avoid it. If unloading on a slope is unavoidable, park the trailer on solid flat ground facing downhill, pull up the handbrake and block the wheels to prevent sliding. Always lift the trailer bed slowly and steadily. If materials get stuck and cannot unload smoothly, do not force the bed higher. Instead, lower it slightly to loosen the cargo. Once you find the trailer unstable, hydraulic leakage or abnormal load movement, stop working immediately, evacuate all nearby staff, and lower the bed back to a horizontal and safe state. After work completion, clean up residual materials in the trailer, check key parts for wear and damage caused by slope operation, record all equipment faults, and repair them in time to keep the trailer working stably.
