What role do the rear wheels play in the operation of a forklift?

The rear wheels of a forklift play a crucial role in controlling the direction of the vehicle. As the rear wheels pivot, they provide the necessary maneuverability that allows the forklift to turn and navigate in tight spaces. This is especially important in environments like warehouses, where precision in movement is required to avoid obstacles and safely position loads. The ability of the rear wheels to steer significantly affects the overall handling and stability of the forklift, making them essential for efficient operation.

The other options highlight functions that are not typically associated with the rear wheels' role. For instance, while the front wheels may drive the vehicle forward, the rear wheels primarily assist with steering. Lifting heavy loads is the responsibility of the fork and mast assembly, and engaging the hydraulic system is a separate mechanism related to the lifting functions, not directly tied to the rear wheels' operation.