Abstract: In a construction machine provided with a control unit for outputting actuating commands to actuators based on operating signals from operating levers, interlocking relationships between the operating levers and the actuators can be set as desired respectively, while avoiding enlargement of the memory.
Interlocking relationships desired by an operator are adapted to be input into a control unit from a service tool, and the control unit is provided with a memory for rewritably storing the interlocking relationships thus input.