Repairing Y-Axis Movement: Replacing the Y-Motor

Estimated time: 15–20 minutes • Skill: Basic

This guide explains how to replace the Y-motor on the Epilog FiberMark laser system. The Y-motor drives the X-Axis assembly forward and backward. Following these instructions will help you safely remove the old motor and install the new one.

Procedure

1. Disconnect the machine from its power source.
2. Remove the front service panel.

   Remove the four Phillips head screws to detach the front panel.

   

3. Remove the right side panel.

   Remove the six Phillips head screws. There are four screws on the side and two on the rear of the panel.

   

4. Locate the Y-Motor.

   Picture 3 illustrates the location of the Y-Motor.

   

5. Remove the motor tension spring.

   Unhook the spring holding the motor and let it hang from the bottom peg, as shown in Picture 4.

   

6. Remove the motor mounting bracket.

   Remove the four Philips screws holding the motor bracket and remove the belt from the pulley above the motor. Reference picture 5 to see where the screws are located.

   

7. Disconnect the motor lead.

   This connector is inside the machine and has a lock. Depress the lock and then pull the connectors apart.

   

8. Remove the motor assembly from inside the machine.

Installing the new motor

1. Install the new motor assembly.

   Place the assembly in from the front of the machine. Loop the belt over the pulley and loosely install, but do not tighten, the 4 Y-Motor mounting screws.

2. Attach the spring.

   Place the spring on the lower peg, then pull the spring up over the top peg, letting it fit into the rear groove on the peg.

   

3. Apply tension and seat the belt.

   Allow the spring to apply tension to the belt. Do not pull down on the motor. Move the X-axis assembly back and forth in the machine three to four times to make sure that the belt is fully seated.

   

4. Tighten mounting screws.

   Securely tighten the 4 screws highlighted in Picture 10.

5. Reconnect the motor lead.

   Plug the motor’s electrical connector back in as shown in picture 11.

   

6. Replace right side panel.
7. Replace front panel.
8. Finalize the installation.

   Start up the engraver to ensure proper operation. This completes Replacing the Y-Motor in your FiberMark Laser engraver.