10 mm Open wrench
https://youtu.be/Tkoj-RJ9V8s
Before operation, power off the printer.
It is recommended to do the first maintenance after half a month of use. The V-shaped wheel is not easy to come out after running-in of the guide rail.
It is recommended to do maintenance every two months after the first maintenance.
ELEGOO Neptune 3 Series
- Slide the print head. Clean the burrs on the surface of the plastic V-wheel and guide rail on the upper and lower sides of the X-axis using a paper towel.

- Shake the print head as a whole with your hands, if you find obvious shaking

- Using a 10mm open-end wrench, adjust the two V-wheels behind the print head just in contact with the surface of the profile

- Slide the V-shaped wheel by hand to ensure that it will not rotate in the air, and not too loose or too tight

- The V-shaped wheels on both sides are adjusted at the same time, and after the adjustment is completed, slide and shake the print head as a whole

- If the print head maintains stable, the adjustmen completes

- Slide the print head. Clean the burrs on the surface of the plastic V-wheel and guide rail on the upper and lower sides of the X-axis using a paper towel.

- Shake the print head as a whole with your hands, if you find obvious shaking

- Use a 10mm open-end wrench to adjust the three V-wheels on the right side of the printing platform so that the V-wheels just touch the surface of the profile

- Slide the V-shaped wheel by hand to ensure that it will not rotate in the air, and not too loose or too tight

- After the adjustment is completed, slide and shake the printing platform with your hand to maintain a stable state, which means that the adjustment is normal

- Power on the printer. After the homing process, the printer is ready for use.