1.1 Basic Methods for Maintaining and Diagnosing Intelligent Equipment+ 1.2 Common Methods for Diagnosing Faults in Intelligent Equipment+ 1.3 Control Principle of Intelligent Equipment+ 2.1 Intelligent Open-loop Control Technology+ 2.2 Intelligent Semi-closed Loop Control Technology+ 2.3 Intelligent Closed-loop Control Technology+ 3.1 Types and Classifications of CNC Machine Tools+ 3.2 The Classification of CNC Machine Tool Faults+ 3.3 Methods for Diagnosing CNC Machine Tool Faults+ 3.4 Lubrication Inspection and Maintenance of CNC Machine Tools+ 3.5 Diagnostics for CNC Machine Tool Spindle Positioning Failure+ 4.1 Industrial Robot Mechanical Structure+ 4.2 Diagnosis of Mechanical Faults in Industrial Robots+ 4.3 Analysis of Electrical Faults in Industrial Robots+ 4.4 Precautions for Industrial Robot Maintenance+ 5.1 Diagnosis of Overload Alarm Malfunctions in Industrial Robots+ 5.2 Troubleshooting I/O Signal Faults in Industrial Robots+ 5.3 Diagnosis of Industrial Network Communication Faults+ 6.1 Diagnosis of Industrial Network Communication Faults+ 6.2 The Composition of Smart Manufacturing Units+ 6.3 Maintenance Content and Strategies of Intelligent Manufacturing Units+ 6.4 Digital Workshop+ 6.5 Smart Factory+ 7.1 Communication Methods for Intelligent Equipment in Smart Manufacturing+ 7.2 Diagnosis of Industrial Ethernet Communication Faults+ 8.1 Design of the Startup Circuit for CNC Machine Tools+ 8.2 Circuit Design of the Servo System for CNC Machine Tools+ 8.3 Control Circuit of the Tool Changer for CNC Machine Tools+ 8.4 Design of Coolant and Lubrication System Control for CNC Machine Tools+