WORKING MACHINE

PROBLEM TO BE SOLVED: To provide a working machine capable of operating according to various kinds of attachments when an engine is in an idle condition. SOLUTION: This working machine is provided with an actuator 33 for SP capable of operating in the interlocking relationship with power of the engine 7, the attachment for SP operated by the actuator 33 for SP, a control valve 24 for SP for supplying hydraulic fluid to the actuator 33 for SP to operate the attachment for SP, a solenoid valve 35 for SP capable of operating by operation signals to adjust pilot pressure of the control valve 24 for SP, and a control part 28 for outputting the operation signal corresponding to amount of operation θ of an operation member 25 to the solenoid valve 35 for SP. The control part 28 has an operation signal changing means 41 for increasing or decreasing an output of the operation signal output to the solenoid valve 35 for SP above/below a reference value set in advance when operating the actuator for SP. COPYRIGHT: (C)2009,JPO&INPIT