Patent ID: 7036248
Filing Date: 2006-05-02
Classification: E02F

Abstract:
1. A control arrangement for controlling the operation of a work implement carried on a work vehicle, comprising: a first control lever, a first hydraulic system, and a first hydraulic cylinder, said first control lever operatively connected to said first hydraulic system, said first control lever arranged to be moved by an operator in a first direction or in a second direction, to control two-way movement of said first hydraulic cylinder by routing pressurized hydraulic fluid from said first hydraulic system to a respective extend or retract port of said first hydraulic cylinder; a second control lever, a second hydraulic system, and a second hydraulic cylinder, said second control lever operatively connected to said second hydraulic system, said second control lever arranged to be moved by an operator in a third direction or in a fourth direction, to control two-way movement of said second hydraulic cylinder by routing pressurized hydraulic fluid from said second hydraulic system to a respective extend or retract port of said second hydraulic cylinder; said first and second hydraulic cylinders configured and arranged to position different portions of a work implement of a work vehicle; third and fourth hydraulic systems; a control switch and at least one electrically operated valve block, said electrically-operated valve block electrically connected to a source of power and to said control switch, and hydraulically connected to said first and second hydraulic systems such that changing the state of said control switch charges the state of said electrically operated valve block to operatively connect said first and second control levers to said third and fourth hydraulic systems respectively, wherein said first control lever is arranged to be moved by an operator in said first direction or in said second direction, to control two-way movement of said second hydraulic cylinder by routing pressurized hydraulic fluid from said third hydraulic system to a respective extend or retract port of said second hydraulic cylinder, and wherein said second control lever is arranged to be moved by an operator in said third direction or in said fourth direction, to control two-way movement of said first hydraulic cylinder by routing pressurized hydraulic fluid from said fourth hydraulic system to a respective extend or retract port of said first hydraulic cylinder.