• Check if the optocoupler has sensing or mounting board.
• Set the position of the tool.
• Adjust whether the origin range alarm light is working properly.
• Is the carved surface limited.
• Check whether the water pump and oil pump are normal, and whether the solenoid valve and spindle can operate normally.
• Is there a phenomenon of knife dropping.
• Whether the coupling and the screw are concentric or make a sound.



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