This book covers dismantling and assembling of 5 h.p engine, transmission, brake, hydraulic, electrical systems of tractor. Chapter on testing of tractors has also been added. It deals with fundamental of working principles as well as details of the systems and components. The important aspects of trouble shooting and repair are covered. It covers chapter on Combine harvester. It covers maintenance procedure of tractor. This book is useful for Agricultural Engineering Students, Professors, Repairmen, Dealers and Tractor owners.