What does a mark indicating "the limit of the number of stacked layers is ten" suggest?

The indication that "the limit of the number of stacked layers is ten" clearly suggests that no more than ten layers should be stacked. This safety measure is often implemented to prevent instability and maintain balance in the load being lifted. Exceeding this limit could lead to tipping or collapsing of the stack, which poses safety risks to both the operator and the surrounding area.

The specific guidance of limiting to ten layers helps ensure that the forklift truck can operate safely without compromising the structural integrity of the load, which is crucial in preventing accidents on the job. Such limitations are based on considerations like weight distribution, center of gravity, and overall safety standards in lifting operations.