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AssigneeCNH Industrial Canada, Ltd.
InventorsMatthew R. Sudbrink, Kena Shah, Dean A. Knobloch, James W. Henry
Estimating the term…
An agricultural machine or implement has a main frame section and at least one wing section, each having lift cylinders. A main shank frame may be pivotally attached to the main frame section and may have hydraulically adjustable gauge wheels. Wing shank frames may be pivotally attached to the wing sections and may also have hydraulically adjustable gauge wheels. Bypass circuits may be used to individually adjust the lift cylinders and gauge wheel cylinders. A controller or controllers is used to purge air from the lift cylinders, gauge wheel cylinders, cylinders used to raise the shank frames for transport, and from the bypass circuits. The purge routine may be selectable as individual steps, hydraulic subsystem purges, or as one automatic purge routine.
An agricultural machine or implement, comprising:
A hydraulic system of an agricultural machine or implement having a main frame section, at least one wing section, at least one main structure pivotally connected to the main frame section, and at least one wing structure pivotally connected to the at least one wing section, comprising:
A method of bleeding air from a hydraulic system of an agricultural machine or implement having a main frame section, at least one wing section, at least one main structure pivotally connected to the main frame section, and at least one wing structure pivotally connected to the at least one wing section, comprising the steps of:
Dependencies are inferred from the claim text.