The primary disadvantage of a hydraulic system compared to a mechanical system is:

The primary disadvantage of a hydraulic system compared to a mechanical system being the complex component requirements relates to the fact that hydraulic systems require various components such as pumps, valves, reservoirs, filters, and cylinders to operate effectively. This complexity can lead to a more intricate installation process, increased maintenance needs, and a higher chance of component failure. Each component must function properly for the system to work efficiently, and the interdependence of these parts can complicate troubleshooting and repairs.

Mechanical systems, on the other hand, typically consist of simpler components like gears and levers that are often more straightforward to install and maintain. The fewer parts and simpler assemblies of mechanical systems often lead to a more user-friendly operation. Therefore, while hydraulic systems can provide significant advantages in terms of force and efficiency, the necessity for more complex components is a notable drawback when comparing them to simpler mechanical alternatives.