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Principles of Hydraulics

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Unit 1 -- Hydraulic Basics
Lesson 1.0 Introduction
Lesson 1.1 Pressure and Force
Lesson 1.2 Pascal's Law
Lesson 1.3 Flow
Lesson 1.4 Energy, Work, and Power
Unit 2 -- Hydraulic Systems
Lesson 2.0 Introduction
Lesson 2.1 Basic Systems
Lesson 2.2 Color Coding
Lesson 2.3 Reservoirs
Lesson 2.4 Strainers and Filters
Lesson 2.5 Filtering Material and Elements
Lesson 2.6 Accumulators
Lesson 2.7 Pressure Gauges and Volume Meters
Lesson 2.8 Portable Hydraulic-Circuit Testers
Lesson 2.9 Circulatory Systems
Lesson 2.10 Fittings and Connectors
Lesson 2.11 Leakage
Unit 3 -- Pumps
Lesson 3.0 Introduction
Lesson 3.1 Pump Classifications
Lesson 3.2 Performance
Lesson 3.3 Displacement
Lesson 3.4 Slippage
Lesson 3.5 Designs
Lesson 3.6 Gear Pumps
Lesson 3.7 Vane Pumps
Lesson 3.8 Piston Pumps
Lesson 3.9 Pump Operation
Unit 4 -- Hydraulic Actuators
Lesson 4.0 Introduction
Lesson 4.1 Cylinders
Lesson 4.2 Construction and Applications
Lesson 4.3 Maintenance
Lesson 4.4 Hydraulic Motors
Unit 5 -- Valves
Lesson 5.0 Introduction
Lesson 5.1 Pressure-Control Valves
Lesson 5.2 Directional-Control Valves
Lesson 5.3 Flow-Control Valves
Lesson 5.4 Valve Installation
Lesson 5.5 Valve Failures and Remedies
Lesson 5.6 Valve Assembly
Lesson 5.7 Troubleshooting Valves
Unit 6 -- Circuit Diagrams and Troubleshooting
Lesson 6.0 Introduction
Lesson 6.1 Hydraulic-Circuit Diagrams
Lesson 6.2 United States of American Standards Institute (USASI) Graphical Symbols
Lesson 6.3 Typical Mobile Circuits
Lesson 6.4 Troubleshooting
Unit 7 -- Electrical Devices: Troubleshooting and Safety
Lesson 7.0 Introduction
Lesson 7.1 Hydraulics and Electricity
Lesson 7.2 Troubleshooting Electrical Devices
Lesson 7.3 Ground
Lesson 7.4 Safety


About this Course

hydraulics02_sm.jpg (16740 bytes)This course serves as a guide for personnel who will operate and maintain equipment using hydraulic-powered control systems. It includes general information covering basic hydraulics and describes the properties and characteristics of fluids and several types of pumps, motors, valves, and controls. This manual also deals with piping, tubing, and hoses used to convey fluid under pressure. It describes the functions and types of reservoirs, strainers, filters, and accumulators. It discusses the purposes and types of seals and packings used in fluid power systems.



The content of this course is based on the U.S. Army Field Manual No. 5-499

Acknowledgment is gratefully made to the organizations listed below for permitting the use of copyrighted material in preparing this manual.

  • The contents of Chapter 7 is taken from Vickers' Industrial Hydraulics Manual, Third Edition, 1993 ,Deere & Company, Moline, Illinois
  • Hydraulics. "Reproduced by permission of Deere & Company. 1997. Deere & Company. All rights reserved."
  • Vickers, Inc.
    Rochester Hills, Michigan
  • Industrial Hydraulics Manual, Third Edition 1993.
Primary content provider: U.S. Army
Web developer: David L. Heiserman
Publisher: SweetHaven Publishing Services

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