This course is one of several subcourses that make up the entire Army correspondence course on wheeled vehicle maintenance. The subcourse is designed to provide the student with information about the operation, malfunction diagnosis, maintenance, and repair of wheeled vehicle steering systems. It provides the basic theory, and also includes on-the-job task assignments. The subcourse is divided into five lessons covering the following topics: fundamentals of hydraulics; introduction to wheeled steering systems; maintenance of mechanical steering gear assemblies; maintenance of power steering gears; and maintenance of steering linkages. Each lesson contains objectives, text, task assignments, and review exercises. Answers for the exercises are provided after the final lesson, along with an examination and application task test. This subcourse is designed for student self-study, but could be used in small group learning situations. (KC)