STEERING DEVICE OF FARM WORKING MACHINE

摘要

PROBLEM TO BE SOLVED: To elongate the life of a seal member and strengthen its durability by reviewing the fitting structure between a transmission shaft case and a front axle case. SOLUTION: A first seal ring 16 acting between a transmission shaft case 6 and a front axle case is arranged inside the upper end of a cylinder case part 8B surrounding a king pin shaft 13 in the front axle case 8 and a cylindrical projection case part 6C outward surrounding the upper end of the cylinder case part 8B is formed in the transition shaft case 6 and a second seal ring 17 acting between the projection case part 6C and the outer surface of the cylinder case part 6B is arranged and a double seal structure is made.