公开(公告)号：US20230358012A1

公开(公告)日：2023-11-09

申请号：US17739542

申请日：2022-05-09

Applicant: Caterpillar Inc.

Inventor： Mark W. Thompson ,  Jeffrey R. Peterson ,  Trent R. Stefek

IPC: E02F3/36

CPC classification number: E02F3/3663 ,  E02F3/3627

Abstract: A hydraulic system for depressurizing a work tool auxiliary circuit of a work machine. The system comprises: a power source; a reservoir of hydraulic fluid, a plurality of hydraulic lines, a pressure source, a control valve, a depressurize line connected to at least one of the plurality of hydraulic lines and the reservoir, the depressurize line includes an electromechanical valve for regulating the flow of hydraulic fluid in the depressurize line; a controller and a coupler switch comprising at least two throws and having three positions where one of the three positions actuates the electromechanical valve to depressurize the work tool auxiliary circuit. The hydraulic system can be provided as a kit to existing work machines for depressurizing the work tool hydraulic auxiliary circuit of a work machine.