Before Starting Maintenance Work 1 Check the area around the operating parts. 2 Check that the covers on the front and rear sides are closed. 3 Release all emergency stop buttons for this machine and any linked devices (if they have been pressed). 4 On the Leonardo operation screen, click [Setpoint] and then press the reset button on the main electric box. 11 If an error message is output and you cannot perform Set point, refer to "Troubleshooting" in the "Operation Guide".