Milling machine with re-entering back wheels

The machine (1) of one of the preceding claims, wherein said first actuator (20) comprises an extendable actuation member (20b, 20a) being on one end pivotably connected to said support arm (11) and at the other end pivotably connected to said frame (2).

The machine (1) of one of the preceding claims, further including a control device (53) adapted to independently control said first and second actuators (20, 21).

The machine (1) of one of the preceding claims, wherein said support arm (11) includes an actuator (50, 51) adapted to lock said support arm (11) in its projecting position (60) and retracted positon (70), respectively.

A method of controlling the position of at least one wheel or track (5) of a plurality of wheels or tracks (4, 5) supporting a frame (2) of a work machine (1), said at least one wheel or track (5) being connected to a respective lifting column (32) adapted to raise and lower said frame (2) relative to the respective wheel or track (5), said method comprising the steps of:

• pivoting said at least one wheel or track (5) relative to said frame (2) to position said wheel or track (5) between a projecting or retracted position (60, 70) relative to said frame (2), and
• positioning said wheel or track (5) in a selected rotational direction (β) about a vertical axis (Z) of said wheel or track (5).