Patent ID: 8833068

Claim:
A work vehicle comprising: a hydraulic actuator; an operation member configured to operate the hydraulic actuator; a pilot valve configured to output a pilot pressure according to operation of the operation member; an actuator control valve configured to control the hydraulic actuator according to the pilot pressure input thereto; a lock member switchable between a locked position and a release position; a lock valve switchable between a released state in which the lock valve permits supply of the pilot pressure to the actuator control valve and a locked state in which the lock valve blocks the supply of the pilot pressure to the actuator control valve; a lock valve switching section configured to switch the lock valve from the locked state to the released state when the lock member is switched from the locked position to the release position; an elapsed time detection section configured to detect elapsed time from a point in time when the lock member is switched from the locked position to the release position; an elapsed time determination section configured to determine whether the elapsed time is equal to or more than a predetermined time; a pilot pressure determination section configured to determine whether the pilot pressure is equal to or more than a predetermined pressure; and an erroneous operation monitoring section configured to permit switching of the lock valve by the lock valve switching section when the pilot pressure is equal to or more than the predetermined pressure when the elapsed time is equal to or more than the predetermined time, and to switch the lock valve to the locked state when the pilot pressure is equal to or more than the predetermined pressure when the elapsed time is less than the predetermined time.