Is released, the weight transfer to the rear wheels is immediately reduced To strike a solid object, ie large rock or tree root the hydraulic pressure Which no other Tractor not using the Ferguson system of control had at the The Ferguson system also has one very important safety feature The Finger Tip Control Lever within easy reach of the driver's seat. Link also acts on the built-in hydraulic system to govern soil depth of the The compression force exerted through a spring in the top Through the top link also keeps front end of the tractor down even up steep Of other forces adds traction-producing weight as needed. The implement and resistance of the soil to the implement plus the effect Of two bottom links which PULL the implement, and a top link which PUSHESįORWARD AND DOWNWARD ON THE TRACTOR ABOVE THE REAR AXLE. The implement is attached to the tractor by means Of attachment, instead of one, to transmit the pulling force of the tractor The Ferguson System utilizes three points The TE Tractors utilizes the above basic principle in the application andĬontrol of power to farm implements. The Ferguson System of Implement Linkage and Hydraulic on The Ferguson design team worked on this principalįor quite some time using springs and levers and other mechanical ideas andĮventually Hydraulics was seen as the solution to this problem. This principle is known as Draft control and was patented by Implement would dig deeper and the draft forces would balance again at theĮight inches. The implement depth raises to say six inches the draft force would reduceĪnd this would then send a drop signal to the hydraulic controls thus the Conversely if the front end of the tractor drops in a hole, Would be raised to such a point as the draft forces were equal to previous. Increase in draft would give a lift signal to the hydraulic pump and the implement The front end of the tractor rising upwards over a small hill, the immediate If our implement cutting at eight inches is forced deeper into the soil. Work automatically? The draft forces are sensed through the points of attachmentĪnd the hydraulic pump automatically reacts to changes in draft loading. Why not use that draft fact to control the depth of Obviously thatĭraft will increase if the implement runs deeper than eight inches, and decrease An implement cutting through the soil at a certain depth sayĮight inches requires a certain force or draft to pull it.
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