| 摘要 |
PROBLEM TO BE SOLVED: To provide a working machine which can prevent the breakage of an accumulator before it occurs.SOLUTION: The working machine is provided with an operation lever 134, a holding device rotation cylinder 18, and the accumulator 52. The operation lever 134 performs the operation of changing the attitude of a holding device 101, and the holding device rotation cylinder 18 determines the position and the attitude of the holding device 101 with respect to a revolving superstructure 11 in accordance with the operation of the operation lever 134. The accumulator 52 relaxes an impact force exerted on the holding device 101 through the medium of the holding device rotation cylinder 18. The working machine is provided with a stroke sensor 301, a pressure sensor 302, and an abnormality determination means. The stroke sensor 301 detects the amount of change in the position and the attitude of the holding device 101 which is caused by the accumulator 52, and the pressure sensor 302 detects the pressure accumulation force of the accumulator 52. The abnormality determination means determines whether or not abnormalities in the pressure accumulation characteristics of the accumulator 52 have occurred based on the detection results of the stroke sensor 301 and the pressure sensor 302. |
