Check the status of the Kato excavator APCI00 system. Before opening the APC100 system, you must make sure that the accelerator brake has been installed correctly. Otherwise, the engine speed is inconsistent with the speed of the accelerator rotation, or the accelerator brake motor may move at an overspeed or burn out.
(1) Check the positions of all switches and knobs
①Starter switch: "OFF" position.
②Accelerator knob: "Low idle (turtle icon)" position.
③APC switch: automatic (AUTO)" position.
④Accelerator standby switch: "AUTO" position.
(2) Check the wires and connectors of the accelerator brake
Check the wires connected to all accelerator brakes and check if they are working properly
(3) Check the working condition of the accelerator brake at low idle speed
When the starter switch is turned to the "ON" position and the engine cannot be started but the power supply of the APC100 system is normal, check whether the accelerator brake is moving at a low idle speed and whether it stays in the low idle position for about 2 seconds. If the hydraulic oil temperature is lower than 30℃, the automatic heating function will start, and the engine speed will stop at 1400r/min. If you press the fast accelerator switch on the right joystick, you can cancel the automatic heating function.
(4) Check the manual operation of the accelerator brake
Turn the accelerator backup switch to the manual position and check the manual operation of the accelerator brake
①Turn the manual accelerator switch to the "UP (rabbit icon)" position and check whether the regulator lever of the fuel injection pump touches the high idle stop after 3 seconds, and drive the accelerator brake motor to stop. Then, as the accelerator brake motor stops, the spring on the accelerator cable is relaxed. Check whether the spring has margin and is not fully compressed.
②Turn the manual accelerator switch to the "DOWN (turtle icon)" position. After about 3s, check whether the pulley turns to the low idle direction and drive the accelerator brake motor to stop. Then, as the motor stops, the spring on the pull wire at the engine stop end is relaxed. Check whether the spring has margin and is not completely compressed.
When the accelerator switch is turned to "DOWN (turtle icon)", the accelerator brake will drive the motor to stop, and the engine will not start at this time. In this case, turn the manual accelerator switch to the "UP (rabbit icon)" position, and then start.
