Combination of tractor and agricultural machinery which can be adjusted using hydraulic cylinders connected to valve system on tractor whose settings can be controlled by fixed programmable unit or removable manual control unit

摘要

The combination of a tractor (10) and agricultural machinery (25) which can be adjusted using hydraulic cylinders (30, 32) connected to a central valve system (44). The tractor is fitted with a removable control unit (42) with manual controls (50). The hydraulic cylinders are also connected to a valve system (46) on the tractor whose settings can be controlled by a fixed programmable unit (48), but can also be controlled by the manual controls.