¶ Z-Axis Motor Replacement Procedure - X Series
¶ Problem Description
If you observe that the Z-axis does not respond to the up/down controls or autofocus, but the laser head can still be moved manually by turning the Z-axis screw, the Z-axis stepper motor may require further inspection and replace the Z-axis motor if necessary.
This issue may indicate a fault in the Z-axis stepper motor or one of its phase circuits. When the motor cannot operate normally, the Z-axis controls and autofocus function may become unresponsive even though the Z-axis mechanism itself can still be moved manually.
¶ Cause
A phase circuit of the Z-axis stepper motor may have an open or intermittent connection, causing the stepper motor driver to report a phase error and preventing the Z-axis from moving normally.
¶ Solution
If you have received the new Z-axis motor (lead screw motor assembly), follow the steps below to install it:
- Remove the top cover of the laser head by removing the two screws on the back.
- Loosen the motor mounting bracket directly below the Z-axis motor by removing the two screws on the back.
- Locate the two screws above the left side of the Z-axis motor. Remove them to loosen the limit plate.
- Turn the lead screw counterclockwise to gradually remove the motor from the top.
- Turn the bottom of the motor upward to access the four mounting screws. Remove these screws to separate the motor from the motor mounting bracket, then disconnect the corresponding connector.
- Install the new Z-axis motor by following the same steps in reverse, then reinstall the laser head housing.
⚠️ Note:
- If there is not enough room to work comfortably, you can also remove the housing on the right side of the laser head. Reinstall it in its original position after completing the replacement.
- Remember to remove the honeycomb panel; otherwise, the Z-axis travel will not be sufficient to remove the lead screw motor.
Important Reminder:
If these steps do not resolve the issue, please submit a support ticket on ZOHO: https://zohodesk.1laser.com/portal/en/newticket. A technician will then be able to conduct a more in-depth diagnosis and resolve your problem.