Work Vehicle

A diff-lock operation shaft is supported by a case in such a manner as to be rotatable around an axis P of the diff-lock operation shaft and operates a diff-lock section to a lock position A by being rotated, and a first coil spring is wound around the outer surface of the diff-lock operation shaft concentrically with the diff-lock operation shaft , and is linked at one end portion to the diff-lock operation shaft and at another end portion to linking members and . The first coil spring is twisted around the axis P via the linking members and by the manual operation tool being operated, and the diff-lock operation shaft is rotated via the first coil spring