1.Machine does not start

• Possible causes
   
  Power off, emergency stop pressed, loose wiring, safety door not closed.
• Solutions
   
  Check power supply; reset emergency stop; check cables and connectors; close safety door properly.

2. Vibration is too large 

• Possible causes
   
  Unlevel installation, loose foundation bolts, damaged bearings, worn belt.
• Solutions
   
  Adjust level and tighten bolts; replace bearings; replace or tension belt.

3. Inaccurate measurement 

• Possible causes
   
  Sensor fault or loose connection, dirty sensor surface, uncalibrated system, worn fixtures.
• Solutions
   
  Check and fix sensor; clean sensor; recalibrate the machine; replace fixtures.

4. Belt slipping 

• Possible causes
   
  Belt loose or worn, oil on belt surface, overload.
• Solutions
   
  Tension or replace belt; clean oil and dirt; reduce load.

5. Universal joint abnormal noise 

• Possible causes
   
  Lack of lubrication, loose connection, worn parts.
• Solutions
   
  Add lubricating oil; fasten joints; replace worn components.

6. Display no signal

• Possible causes
   
  Cable loose, power supply abnormal, display or mainboard fault.
• Solutions
   
  Reconnect cables; check power; contact after-sales for repair.

7. Rotor cannot balance

• Possible causes
   
  Wrong rotor type selected, unqualified workpiece, incorrect fixture.
• Solutions
   
  Reset parameters; check workpiece quality; use correct fixtures.