Tractor is an engineering vehicle designed for high tractive effort at slow speeds. Term comes from Latin "trahere" meaning "to pull"
Farm is an agricultural land area primarily devoted to food production. Includes specialized units like dairy, poultry, and wind farms. Modern farms can be industrial operations like wind farms. About 570 million farms worldwide, mostly family-operated
PTO transmits engine power to implements and machines. Most common on tractors and trucks as splined drive shafts. Used in marine applications for fire pumps. Four types exist in jet aircraft: internal, external gearbox, radial, bleed air
First combine harvester patented by Hiram Moore in 1835. Early combines pulled by horses, later self-propelled by Holt and Baldwin brothers. Rotary design introduced by Sperry-New Holland in 1975. Modern combines equipped with electronic monitoring and yield measurement systems
ECU controls engine through various switches and sensors. Processes signals and sends commands to fuel injection pump. Manages fuel, air, and ignition systems
ENG 111 indicates engine controller failure. ENG 115-121 cover sensor issues with speed, position, and boost pressure. ENG 131-151 address throttle, oil, and coolant pressure problems. ENG 211-299 cover communication and control module errors