March 22, 2022

Introduction to Hydraulics

A hydraulic system uses liquid to transmit power. It is designed to create the energy required in the fluid to make the entire system operate. By the end of this course, you will be able to • Understand fluid power • Define hydraulics • Describe the differences between hydrostatic and hydrodynamic systems • List the advantages of a fluid power system • Identify the basic components of a fluid power system • Compare a hydraulic and pneumatic system • Compare four different types of power systems
March 22, 2022

Hydraulic Theory

Hydraulics is based on physics. As a result, it’s crucial that you understand the theoretical concepts and fundamental laws applicable to hydraulics. Parameters to control include force, speed, acceleration, path, flow rate, and pressure. In addition, you need to understand the fundamental laws of hydraulics, such as the continuity equation, energy equation, and pressure losses due to friction. By the end of this course, you will be able to • Analyze and discuss the theoretical concepts applicable to hydraulics • Summarize parameters and their units • Understand the fundamental laws of hydraulics
March 22, 2022

Hydraulic Fluids

Hydraulic fluid plays an important role in a hydraulic system. Without hydraulic fluid, the service life of other components would be much shorter. By the end of this course, you will be able to • Identify the functions of hydraulic fluids • Understand the different types of hydraulic fluids • Describe the different classifications of hydraulic oils and flame-retardant liquids • Know how to select hydraulic oils based on characteristics and purpose • Understand the importance of periodically checking hydraulic fluids
March 22, 2022

Hydraulic Systems

Hydraulic systems use fluid power to perform work. A simple hydraulic system consists of several common components, including a tank, pump, filter, heat exchanger, accumulator, valve, and actuator. By the end of this course, you will be able to • Understand the purpose of a hydraulic system • Identify the major components of a simple hydraulic system • Describe the purpose of a hydraulic tank • Identify the components of a hydraulic tank • Describe the purpose of a hydraulic pump • Understand how a hydraulic pump works • Describe the purpose of a hydraulic filter • Understand how a hydraulic filter works • Describe the purpose of a heat exchanger • Understand how a heat exchanger works • Explain the purpose of a hydraulic accumulator • Understand how a hydraulic accumulator works
March 22, 2022

Hydraulic Actuators

An actuator transforms hydraulic energy into mechanical energy so that work can be performed. An actuator may be in the form of a cylinder or motor. By the end of this course, you will be able to • Explain the purpose of a hydraulic actuator • Identify the different types of cylinders • Describe the components of a cylinder actuator • List the applications of hydraulic motors • Recognize the importance of hydraulic motor maintenance
March 22, 2022

Classification of Hydraulic Valves

A hydraulic valve regulates and controls the hydraulic system’s fluid. Valves are classified based on the power to be transmitted, their function, the control, and their design. In this chapter, you’ll learn about the different classifications of hydraulic valves. By the end of this course, you will be able to • Describe the purpose of a hydraulic valve • Understand how a hydraulic valve works • List the different classifications of hydraulic valves • Describe the different types of pressure valves • Understand the use of directional valves • Describe classifications of shut-off valves • Understand the different types of flow valves • Describe on/off valves • List the different types of proportional valves • Describe the features of proportional control valves • Describe the function of servo valves • List the advantages and applications of cartridge valves • Describe the main uses of logic valves
March 22, 2022

Hydraulic Piping and Instrumentation

Piping and tubing transport hydraulic energy throughout the circuit of a hydraulic system. This piping may be flexible or rigid. When flexible or rigid piping aren’t the best solution, connection blocks may be used. In addition, several types of instruments measure pressure and flow in hydraulic circuits. By the end of this course, you will be able to • Understand the use of piping and tubing • Describe the features of flexible and rigid piping • Recognize the difference between fittings and one-touch fittings • List the two connection types of rigid piping • Understand the use of connection blocks • List the types of pressure measuring instruments • Describe how a pressure gauge works • Understand the functions of a pressure switch and pressure transducer • List the types of flow measuring instruments • Identify what a multimeter can measure
March 22, 2022

Hydroelectric Symbology and Circuits

In this course, you’ll discover the symbols used in hydraulic systems. You’ll also learn about basic hydraulic and electrohydraulic circuits and their applications. By the end of this course, you will be able to • Identify basic symbols • Identify the symbols of the elements for a hydraulic group • Identify hydraulic pump symbols • Identify hydraulic actuator symbols • Identify hydraulic valve symbols • Identify basic hydraulic and electrohydraulic circuits and their applications