| 摘要 |
A square baler (10) is described having a baling chamber (18) of which the side walls (60 , 62) are movable by respective hydraulic cylinders (30 ,32). In the invention the supply of hydraulic fluid to and from the two hydraulic cylinders (30, 32) is effected by a common control circuit that ensures that the two sides walls are displaced in synchronism with one another by equal and opposite amounts. |
