This book is targeting industry professionals who are in charge of operating, maintaining, and troubleshooting hydraulic systems. This book is also a great resource for mechanical engineers and service manuals technical writers. The book presents more than 40 troubleshooting charts to cover system-level and components-level troubleshooting including hydraulic fluids, pumps, motors, valves, cylinders, accumulators, reservoirs, transmission lines, heat exchanges, filters, and sealing elements. The book also contains proposed inspection sheets for the aforementioned components and investigations for the typical types of failures for each component. This book is colored and has the size of standard A4. The book is associated with a separate colored workbook. The workbook contains printed power point slides, chapter reviews and assignments. This book is the sixth in a series that the author plans to publish to offer complete and comprehensive teaching references for the fluid power industry. The book contains a total of fourteen chapters distributed over 250 pages with very demonstrative figures and tables. The contents of the book are brand non-biased and intends to introduce the latest technologies related to the subject of the book.