Content is organized to provide a logical sequence of topics for students who
are being exposed to fl uid power for the fi rst time (Chapters 1 through 5). Specifi c
hydraulic information (Chapters 6 through 13) and pneumatic information (Chap-
ters 14 through 19) provide adequate detail for advanced study in those areas.
The approach used throughout the book is based on developing an understand-
ing of the operation of fl uid power component parts and circuits. Understanding
component operation requires comprehension of fundamental principles of phys-
ics and basic mathematical formulas. These fundamentals are discussed with top-
ics that require them for comprehension of component operation. It is important
to note that mathematical applications required for the original design of complex
fl uid power components are beyond the scope of this book.
Textbook Features
This text includes many features to assist in learning. Each chapter begins with
an introduction to the chapter content. This is followed by a list of learning objec-
tives. The learning objectives identify the knowledge and skills you will obtain on
successful completion of the chapter.
As you study the chapter, make note of all key terms. Key terms appear in the
chapter in bold italic font. A list of selected key terms appears at the beginning of
each chapter. Pay particular attention to these terms and be sure you understand
each. It is recommended that you write out the defi nition for each key term as it is
encountered in the chapter. You can then enter the defi nitions into a word process-
ing document and use this for quick reference.
Also appearing at the beginning of each chapter is a list of Internet resources.
These are related to the topics presented in the chapter. Each item provides the
URL, the name of the site, and a brief description of the information found on the
site. Refer to the next section for more information on this feature.
Throughout the book, you will encounter notes and cautions as boxed features.
A note provides additional useful information about the topic being discussed. A
caution, on the other hand, points out an important safety-related issue. There are
many potentially dangerous situations that will be encountered when working
with both hydraulics and pneumatics, not the least of which is the pressurized
fl uid. Be sure you fully understand the safety-related issues presented in a caution
and follow any instructions provided. When in doubt, consult your instructor for
further safety information.
Each chapter concludes with a chapter test. The test is designed to measure
your knowledge of the chapter topics. Answer each question to the best of your
ability. Then, review the chapter and verify or correct your answers.
At the back of the book is an extensive glossary of fl uid power terms. Also
included is an appendix. The appendix provides general information that you may
need when working in the fl uid power fi eld, such as conversion charts, common
drilled-orifi ce diameters, common pipe sizes, cylinder force, and addresses for
fl uid power organizations.
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