Auxiliary hydraulic control system

Motor vehicles – Motor as source of power for other machine – Hydraulic drive to other machine

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Details

180333, 180334, B60K 1728

Patent

active

058876693

ABSTRACT:
An auxiliary hydraulic system for a working vehicle having an operator station is disclosed herein. The system includes a hydraulic pump for providing hydraulic fluid under pressure, auxiliary hydraulic fittings for connection to auxiliary attachments, and electrically-actuated auxiliary valve assemblies for controlling the supply of hydraulic fluid from the pump to the fittings in response to control signals. The system also includes an operator control console mounted at the operator station and including control levers moveable between different flow positions, flow limit input devices for setting flow limits for the control levers, and a console control circuit for generating command signals based upon the positions of the control levers and the flow limits. The command signals are transmitted to an auxiliary control circuit which generates the control signals in response thereto and applies the control signals to the auxiliary valve assemblies. Thus, the supply of fluid to the auxiliary valve fittings depends upon the positions of the control levers and the flow limits which are controlled by an operator from an integrated operator control console.

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John Deere Operator's Manual for 8100, 8200, 8300 and 8400 Tractors, pp. 55-1 through 55-9.
John Deere 21st Century Technology Today for New 160- to 225-hp 8000 Series Tractors pp. 6, 7, 22, 23, 24, 34, 36, and 37.

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