The Hillco Technologies sidehill leveling system for John Deere S-Series combines allows farmers who operate in steep terrain to increase yield potential and reduce harvest time, resulting in less separator hours maximizing farm income. The JS7020 and JS9020 leveling systems feature a variable speed joystick for manual leveling, a full color monitor, a redesigned ladder for better header visibility, a high flow manifold and an extra step added to the service ladder. Harvesting in the hills has many challenges of its own; with a leveling combine, you are able to eliminate the loss of grain when harvesting on the hills.