1. The John Deere Tractors 6220 TM4726 is a reliable and efficient agricultural machine designed to meet the needs of farmers and agricultural workers. This tractor model comes with a free online manual, providing users with easy access to important information and maintenance guidelines. With its powerful engine and durable build, the John Deere 6220 TM4726 is a top choice for those looking for a high-quality tractor to help them get the job done.