What warning is indicated when the engine of the stacker is running and the meter lights up?

The correct response indicates that when the engine of the stacker is operating and a warning light activates, it signifies there is water present in the diesel filter. This situation is critical as the presence of water can cause significant damage to the engine, affecting performance and potentially leading to operational hazards.

Monitoring the diesel filter for contamination is essential for maintaining engine efficiency, as water in the fuel can disrupt combustion and cause stalling or misfires. It is typically indicated by specific warning lights on the meter console, prompting the operator to take immediate action to resolve the issue.

Awareness of this warning helps ensure the safety and reliability of the forklift, making it vital for operators to act on such alerts without delay.