| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction machine capable of raising a recognition property of an operation pattern.SOLUTION: A controller 62 determines whether or not a selection operation pattern switched by a pattern switching valve 30 is the same as a preset basic operation pattern. Then, control is performed so that a lock valve 58 switches from a shutdown position to a communication position when the selection operation pattern is the same as the basic operation pattern, and on the other hand, that the lock valve 58 maintains the shutdown position when the selection operation pattern is different from the basic operation pattern when a lock lever 31 is operated from a rising position to a falling position. Then, a buzzer 61 is blown when any of operation levers 29L, 29R for operation and other operation members is operated from a neutral position in the case that the lock valve 58 maintains the shutdown position as described above. Then, the control is performed so that the lock valve 58 switches from the shutdown position to a communication state after termination of blowing of the buzzer 61. |
