Patent attributes
A working machine includes a traveling motor having a first speed and a second speed, an operation detector device to detect an operation extent of a traveling operation member, a controller device having an automatic decelerator portion to perform an automatic deceleration for reducing a revolving speeds of the traveling motor, and a storage device storing first control information representing a relation between a first-speed regulating revolving speed corresponding to the operation extent at the first speed and a second-speed regulating revolving speed corresponding to the operation extent at the second speed. The automatic decelerator portion obtains the first-speed regulating revolving speed based on the first control information and the operation extent when the traveling motor is at the second speed, and performs the automatic deceleration when the motor revolving speed is equal to or less than the first-speed regulating revolving speed.