MOBILE AGRICULTURAL MACHINERY

摘要

PROBLEM TO BE SOLVED: To obtain a stable turning action by improving a pivotal brake turning property and reducing the change of a pivotal brake turning force against the change of running resistance. SOLUTION: In the mobile agricultural machinery provided with a differential gear for transmitting the driving force of an engine to right and left running crawlers, a speed change member for changing the drive speed of the right/left crawlers steplessly and a steering member 28 for changing the difference of the drive speed of the right and left running crawlers steplessly, the running speed is reduced while maintaining the steering member 28 to the maximum output by the definite steering operation amount or more of a steering operation tool 19.