What indicates that a load is too heavy for a forklift?

The indication that a load is too heavy for a forklift is demonstrated when the forklift struggles to lift or if the back wheels begin to lift off the ground. This is a clear sign that the load's weight exceeds the forklift's rated capacity. When a forklift is overloaded, it can become unstable, leading to a higher risk of tipping over. The design of forklifts accounts for specific load limits, and exceeding these limits can compromise both safety and operational efficiency.

While other factors, such as an operator feeling uncomfortable or the load not fitting on the forks, may indicate challenges, they do not directly reflect the forklift's capacity or stability dynamics like the struggle and lifting of the back wheels do. The color code system might provide guidelines for safe operation, but it’s more about visual cues rather than direct performance indicators. Thus, the physical struggle of the forklift and the response of its wheels are more reliable and immediate indicators of excessive load.