Mobile Hydraulics Manual: M-2990

"Oil hydraulics today is an essential area of knowledge for anyone who has a technical interest in mobile machinery or any automotive-type vehicles. In farm tractors and implements, industrial trucks, earth-moving equipment, self-propelled vehicles of all kinds, we find applications of brute force with very precise control through hydraulic systems. Milady can park a two-ton automobile with only a slight effort at the steering wheel...the touch of a handle lifts several yards of dirt in the bucket of a loader...trenches are dug quickly withour anyone lifting a shovel full of dirt...because the hidden giant hydraulics is there. This manual has been prepared as an aid to basic training in mobile hydraulics. It is used as a text in the mobile training program at Vickers Hydraulics School. It also is available to others who are interested in this field of hydraulics but do not have the opportunity to attend Vickers school; and it is designed to serve as a reference work for Vickers and customer personnel. In very stimple language and with minimum use of mathematics, you are told the why's and how's of mobile hydraulics. The manual explains the fundamental principles of pressure and flow, describes the operation of basic hydraulic components, tells how these components are combined to do their many jobs, and explores the fundamental considerations of hydraulic equipment design, use and maintenance." "COLOR KEY: To make the manual easy to read and understand, it is liberally illustrated in color. All illustrations which require showing oil flow conditions or paths are prepared with industry-standardized color codes. Therefore, hydraulic lines and passages in the many diagrams are colored as follows; Red (Operating Pressure), Blue (Exhaust), Green (Intake or Drain), Yellow (Metered Flow). Colors also are used to emphasize certain parts of diagrams. In this case, the colors will have no particular significance, and will not appear in the hydraulic lines."....[from foreword]