To reduce the steering effort of the driving wheel, which method is commonly employed in stackers with loads exceeding one metric ton?

Using oil pressure is a common method employed to reduce steering effort in stackers designed to handle loads exceeding one metric ton. This approach typically involves a hydraulic system, wherein hydraulic fluid is pressurized to assist in the steering mechanism. By applying hydraulic power, the operator can achieve greater steering efficiency with less physical exertion, which is particularly beneficial when maneuvering heavy loads.

This method is preferred in heavy-duty applications because it minimizes the strain on the operator, enhancing overall productivity and safety. The hydraulic system provides smooth and controlled movements, allowing for easier navigation, especially in tight spaces or when making sharp turns with substantial loads.

In contrast, other methods, such as mechanical transmission or electric assist, may not provide the same level of efficiency or direct power handling as hydraulic systems in the context of maneuvering heavy equipment. Hydraulic cylinders alone could also assist in lifting and lowering, but without integrating oil pressure for steering, they might not reduce steering effort to the needed level in high-capacity environments. The integration of oil pressure specifically addresses the need for ease of steering when handling significantly heavy loads.