M2.5 Allen key
M3.0 Allen key
Damp cloth or tissue
Before replacing the pulley, ensure that the printer is powered off and disconnected from the power source for safety.
①Gently pry apart the Print Head adapter PCB and disconnect the Print Head cable.
②Use the M2.5 Allen key to remove the 4 screws securing the Print Head module on both sides, then set the Print Head module aside for later reinstallation.
Turn the red knob on the X-Axis tensioner counterclockwise to loosen it. This step facilitates the removal of the pulley later.
Use a spanner to secure the nut in place.
Then, use the M3.0 Allen key to counterclockwise unscrew the 3 screws securing the pulley to the spacer pillars.
Use a damp cloth or tissue to clean any dirt or dust caused by wear on the X-Axis aluminum profile, ensuring that it does not affect the movement of the Print Head module.
①Take out the new pulley. Refer to the diagram below to assemble the previously removed spacer screws and the pulley separately.
②Install the assembled pulley at the Print Head sheet metal and initially tighten the screws with the previously removed nuts. Please note that the adjustable hexagonal eccentric spacers should be mounted separately on the bottom side. Install a washer before initially securing the screws with nuts.
③Use an open-end key to secure the nuts and then use the M3.0 Allen key to clockwise tighten the screws one by one.
①Take the previously removed Print Head module and screws and align the screw holes on both sides. Use the M2.5 Allen key to securely tighten the 4 screws.
②Plug the Print Head cable into the Print Head Adapter Pcb.
Shake the Print Head module. If there is noticeable wobbling, use an open-end key to adjust the hexagonal eccentric spacers on the back of the Print Head until the Print Head module no longer wobbles and moves smoothly on the X-Axis.
Turn the red knob on the X-Axis tensioner clockwise to tighten it as much as possible, then turn it counterclockwise one full turn.
After replacing the X-Axis pulley, you need to perform auto-leveling again. If the Print Head presses too close to the heated bed or the gap is too large, manually adjust the Z-axis offset values.
If the above steps do not provide assistance or if you encounter any other issues during subsequent use, we recommend that you create a support ticket. The after-sales engineers will assist you in finding a solution to the problem(Reply time :1 working day)
Please click this link to submit your ticket: