| 摘要 |
PROBLEM TO BE SOLVED: To provide a control method of a shovel which assists a ground leveling work through a swing motion of the shovel.SOLUTION: A control method of a shovel which performs a ground leveling work includes a process to move up a bucket in accordance with an increase in resistance of the ground when leveling the same by swinging the bucket. In a case of a hydraulic swing drive system, a bucket is automatically moved up when a state, where an operation amount of a swing lever is a predetermined value or more and pressure of a hydraulic swing motor or discharge pressure of a pump is a predetermined value or more, lasts for a predetermined period. In a case of an electric swing drive system, the bucket is automatically moved up when the state, where the operation amount of the swing lever is the predetermined value or more and electric swing motor torque of an electric generator for swing operation is a predetermined value or more, lasts for the predetermined period. |
