TONGUE SWING CYLINDER ARRANGEMENT FOR ROTARY SIDE-PULL MOWER-CONDITIONER

摘要

A side-pull mower-conditioner includes a wheeled frame from which a cro p harvesting header is suspended. A draft tongue carrier forms a forward projection of the frame and terminates at a forward end located above the header. A draft tongue includes a rear end pivotally coupled to the forward end of the draft tongue carrier by an upright pivot pin defining an upright pivot axis about which the tongue c an be swung between a rightmost transport position and a leftmost working position . An extensible and retractable hydraulic actuator is located leftward of the upright pivot axis and is coupled between the draft tongue carrier and the draft tongue an d is fully extended when the draft tongue is in the transport position, and is fully retracted when the tongue is in the leftmost working position. A lock structure is provided for locking the actuator in its extended position, and a stop structure is provided for selectively limiting the retraction of the actuator for disposing the tongue in a desired working position which is rightward of the leftmost working position.