Guarda su Altadefinizione. We visit the John Deere Tractor Cab and Assembly Operations in Waterloo, Iowa where John Deere makes their biggest tractors, the 9000 Series. We start with pre-assembly, then the new multi-million dollar robotic paint installation, cab assembly, final assembly, wheel and decal installation, and testing. An exclusive, rare look inside the factory where the legendary John Deere tractors are made.