What happens to the steering of an articulated dumper when the engine stops?

When the engine of an articulated dumper stops, the power-assisted steering systems are no longer operable. This loss of power assistance means that the driver will not be able to steer effectively since most modern articulated dumpers rely on hydraulic systems to facilitate steering. Without the engine running, these hydraulic systems are disabled, leading to a complete lack of control over the steering mechanisms. Therefore, steering becomes extremely difficult or impossible, reinforcing the idea that there is no effective steering when the engine ceases to operate.

Options suggesting easier steering, increased resistance, or wheel locking misinterpret the mechanics involved—instead of those scenarios, the complete loss of steering capability is a pivotal safety consideration in the operation of such vehicles.