Operation of a 4-Stroke Internal Combustion Diesel Engine : Our Knowledge Publishing : 9786204168913 : 6204168916 : 20 Oct 2021 : The first part describes the systems and their parts that make the four-stroke internal combustion engine work.The second part explains the origin of the horsepower of an agricultural engine and some applications.The third part mentions the repair of an agricultural diesel engine and its operation.The fourth section mentions the general maintenance of an agricultural tractor.Part five shows the operation and maintenance of a threshing and/or combine harvester or grain harvester.In the sixth part we show how the power is distributed from the four-stroke internal combustion engine, through the gearbox, transmission, and how the front and rear wheels work, and then the transmission of power to the power take-off, drawbar and universal three-point hitch, and agricultural implements that the tractor can make it work, this is considering all the systems that allow