From troubleshooting guides to user manuals and wiring diagrams, we have many documents to support our CNC router customers. Our CNC router service technicians provide extensive technical documentation to our CNC router customers, upon request. If there is something you need assistance with while troubleshooting your CNC router, contact our skilled CNC router engineers today. Send us a CNC router service request using the form provided below. 

Troubleshooting CNC Routers

Free Telephone Support

Call Us Now!

CNC Parts Dept., Inc. offers free telephone support for our loyal customers. Our CNC router service technicians can walk you through most common problems when troubleshooting problems related to the operation of CNC router machinery. 

Samples of CNC router troubleshooting guides available are listed below.

Troubleshooting DC Servo Motors

  • Machine shifts position during operation
  • Axis homes in different positions
  • Axis vibration
  • Axis never homes
  • Axis runs away or goes the wrong direction
  • Feedback alarms
  • Following errors
  • Servo wiring diagram
  • Setting Up a DC Servo Card – Servo Dynamics SDFPO 1525-17
  • Servo card adjustment, Fagor 8050/8055
  • Servo error on all axes

Troubleshooting Spindle Motors

  • Spindle faults
  • Spindle doesn’t come up speed
  • Spindle gets hot
  • Spindle sensors
  • ISO Toolholder Gets Stuck In Spindle

Troubleshooting Ground Faults

  • Servo Card Ground Fault

Troubleshooting Pneumatics

  • Leaky Air Regulator
  • Counterbalance Cylinders
  • Wet Compressed Air

Troubleshooting Fagor CNC Systems

  • How to BackUp Your CNC Controllers
    • Fagor 8060/65/70 Controller
    • Fagor 8035/40/50/55 Controller
    • Fagor 8025 Controller
  • WinDNC Error: Wrong Command

Troubleshooting Routers

  • Random and intermittent errors

Programming AC Motor Drives

  • Programming VFDs / AC motor drives / power inverters
  • Wiring Cross Reference from your old inverter to a Delta VFD-B

CNC Router Maintenance

  • Scheduled Maintenance
  • Tool Holder Maintenance
  • Z Axis Bearing Replacement
    • 5 Axis Routers
    • 3 Axis Routers
  • DC Servo Brush Maintenance
  • Air Cylinder Filter Maintenance
  • Blower Filter Maintenance
  • Line Reactor Maintenance
  • Braking Resistor Maintenance