| 摘要 |
PROBLEM TO BE SOLVED: To provide a control circuit of a working machine, which enables the setting of a fluid pressure circuit for an attachment to be surely switched depending on the attachment, without imparting identification information to the attachment. SOLUTION: An operation panel 51, and a monitor 52 for displaying a machine operation state etc. on a screen are installed in the cab of the working machine. The operation panel 51 includes a switch 53 for performing the operation of attaching/detaching a quick coupler which is provided in an operating arm. The screen of the monitor 52 is switched from a display screen for displaying a normal machine operation state, to a display screen for selecting and indicating the attachment, in synchronization with a switch operation for the operation of attaching/detaching the quick coupler. A controller 61 is connected to the monitor 52, and a hydraulic circuit 62 for the attachment is connected to the controller 61. The controller 61 switches the setting of the hydraulic circuit 62 depending on the attachment selected by the monitor 52. COPYRIGHT: (C)2009,JPO&INPIT
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