For what purpose is the hydraulic pump primarily used in forklifts?

The hydraulic pump in forklifts is primarily used to lift heavy loads. This component works by converting mechanical energy from the engine into hydraulic energy. It moves hydraulic fluid through the system, applying pressure to the hydraulic cylinders connected to the lifting mechanism, which then raises and lowers the forks.

This function is crucial because the primary role of a forklift is to handle and transport materials, making the lifting capacity of the machine essential for its operation. A well-designed hydraulic system ensures that the forklift can efficiently lift and stabilize heavy loads safely and effectively. While the other options relate to functions associated with a forklift, they do not directly utilize the hydraulic pump in the same primary capacity as lifting does. For instance, driving the wheels and engaging brakes involve different mechanical systems that are not reliant on the hydraulic pump.