Abstract: A work machine having a tilt mechanism for tilting the working body of the machine relative to the base frame is disclosed. An embodiment includes a support tilt frame, a center tilt frame, an upper tilt frame, and a coupling mechanism. The coupling mechanism includes a variable-length pitch support member, a pitch pivot link, and a roll support member. When tilting is desired, the pitch support member is actuated to move the pitch pivot link and, by extension or retraction, the roll support member. The roll support member is pivotally connected to the upper tilt frame and movement of the roll support member causes the upper tilt frame to move in a pitch or roll direction due to pitch and roll pivoting joints.