What is the effect of leaks on hydraulic system performance?

• A. Leaks reduce effective flow and pressure.
• B. Leaks only affect temperature.
• C. Leaks increase effective flow.
• D. Leaks have no effect.

Answer: (A)

Leaks waste fluid, so the flow reaching the actuator is reduced and the system pressure drops. When fluid escapes through leaks, less of the pump’s output is available to do useful work, causing slower actuator movement and weaker force at the load. The pump ends up working harder to try to maintain pressure, which can generate extra heat and wear. So leaks directly degrade performance. They don’t merely affect temperature, they don’t increase flow, and they do have a real impact on how the system operates.