Please be sure to follow the disassembly sequence outlined in this article strictly. Especially before removing the cover of the extruder, make sure to first remove the extruder filament sensor (handle with care to avoid pulling too hard), as failure to do so may result in the wiring of the sensor broken.
IMPORTANT!
Before performing any maintenance on the printer or its electronic components (including toolhead cables), turn off the printer and disconnect the power supply to avoid short circuits, which may cause damage to electronic devices and safety hazards.
When maintaining or troubleshooting the printer, first check the temperature of the hotend and heatbed. Avoid operating at high temperatures. If high-temperature operation is necessary, wear heat-insulating gloves to ensure safe and effective maintenance.
If you have any questions about this guide, please click to submit a service ticket, and we will respond promptly to provide the help you need.
New extruder unit front cover
Allen keys H2.0
Refer to this tutorial to remove the hotend.
Press the pneumatic connector to disconnect the PTFE tube;
Rotate the rotating wheel and take it off.
Hold the cutter handle and use a screwdriver to remove 1 screw. After the screw is fully removed, gently release the cutter handle and let it hang naturally.
Use an H2.0 Allen key to remove 2 screws. If possible, attach double-sided tape to the top of the toolhead to place the filament sensor, preventing it from falling during subsequent disassembly and assembly. Note: Do not pull hard when removing the filament sensor, and handle it carefully to avoid damaging the black FPC cable.
Use an H2.0 Allen key to loosen the tension driven lever locking screw on the side by one full turn;
Use an H2.0 Allen key to remove the 4 screws on the front cover.
Remove the extruder unit front cover.
Reattach the extruder unit front cover and screw in the 4 front cover screws.
Tighten the extruder side screw;
When installing the extruder filament sensor, make sure the black FPC cable is not bent and is placed smoothly into the gap. Then fasten the extruder filament sensor with 2 screws.
When assembling, be careful not to pinch the sensor cable. Use your finger or a plastic tool to move the cable away from the screw holes. Before tightening the screws, check the holes from the top to ensure the cable is not blocking them.
Before re-tightening the screw, hold the cutter handle firmly in position. When tightening the screw, avoid excessive force to prevent thread stripping.
Insert the PTFE tube.
Reattach the rotating wheel.
Refer to this tutorial to install the hotend.
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