What can a clogged filter lead to in hydraulic systems?

A clogged filter in hydraulic systems can restrict fluid flow, leading to reduced efficiency as the system struggles to operate under optimal conditions. This reduction in efficiency can cause components to work harder, resulting in increased wear over time. When fluid cannot circulate properly due to a clog, it can lead to overheating, which can further damage components and reduce their lifespan. Optimal filtration is essential to prevent contaminants from entering the hydraulic system, and a clogged filter impedes this function, ultimately leading to greater wear and tear on critical components.

In contrast, increased fluid pressure, improved flow rate, and enhanced system cleanliness do not characterize the effects of a clogged filter. Such clogging would typically hinder flow and compromise the system's cleanliness by allowing contaminants to bypass the filter. Hence, the correct answer highlights the significant negative impact a clogged filter has on system performance and durability.