What does the fuel quantity warning light signal?

The fuel quantity warning light signals that fuel levels are low. This light serves as an important indicator for the operator to be aware of the amount of fuel remaining in the tank. When this warning light illuminates, it means that the fuel is nearing a level where it could affect operation, potentially leading to engine shutdown if not addressed promptly. Maintaining adequate fuel levels is critical for the safe and efficient operation of the forklift, as running out of fuel can cause various operational issues.

The other options relate to different operational concerns: low battery charge, high fuel temperature, and engine overheating, each of which has its own warning indicators specific to those conditions. Recognizing what each warning light represents allows operators to respond appropriately to maintain safety and performance.