ATM-DRT2

Hydraulic Fun-Damentals by Dennis Madden is a technical guide for professional transmission technicians that explains the hydraulic principles behind automatic transmission operation. The book focuses on understanding valve body functions, hydraulic pressure, spring force, and oil schematics used in transmission systems. Madden breaks down complex concepts like regulator, switch, and servo valves, then teaches how mathematical formulas involving pressure, force, and area affect shifting and line pressure. The manual also covers diagnosing hydraulic problems, modifying transmission behavior, and measuring spring force for performance tuning. Designed as both a training and diagnostic resource, the book combines practical examples, schematics, and exercises to help technicians improve troubleshooting skills and understand why transmission systems behave the way they do.