Foundations and Purpose The manual’s fundamental purpose is pragmatic: to translate hydraulic theory into real-world application. Hydraulics—using pressurized fluids to transmit power—underpins heavy industry, mobile equipment, manufacturing automation, and many infrastructure systems. The manual assumes its readers need reliable, actionable guidance: how to size pumps and actuation systems, how to choose valves and hoses, how to diagnose leaks and cavitation, and how to maintain safe, efficient systems in often harsh environments.
