| Swapping the motor at the Axis is a troubleshooting method that is meant to 
isolate the cause of a problem with the motors.   After swapping the motor:  
   If the problem stays on the same axis/motor, that indicates the problem 
  is with that motor.  If the problem moves to another axis, that means the problem is before 
  the motor cable/motor.   To perform this procedure:  
  Lock 
  out power to the machine  Using a silver marker or tape with writing on it, label the motor's 
  current axis.  Perform the procedure to Remove 
  the motor for both motors that are to be swapped.  Perform the procedure to Install 
  a motor for both motors in their new positions.   After performing this swap, be cautious when enabling the machine, ready 
  to engage the E-stop at the first sign of trouble.  After performing this procedure, use the result to progress with your 
troubleshooting by returning to the document that instructed you to perform this 
procedure in the first place.  Note: If you are going to be working with swapping the Z axis, care must be 
taken to ensure that the set of cables that will now physically lead to the Z 
motor have the green and white wires hooked into the proper terminals on the 
circuit board. This may require you to leave the green and white terminals 
plugged in while you move the black and red terminals elsewhere.  |