What does the hamburger picture below represent?

The hamburger symbol is commonly used as a representation for the water tank coolant warning light in various vehicle dashboards. This icon typically signifies that there is an issue with the coolant levels or temperature within the engine cooling system. Recognizing such symbols is critical for operators, as they indicate potential overheating or low coolant levels, which can lead to engine damage if not addressed promptly. Understanding these warning lights helps ensure the proper maintenance and operation of the forklift, thereby ensuring safety and performance.