¶ Nozzle Assembly Replacement Tutorial
Tools and materials needed
●2.5mm Allen wrench
●2.0mm Allen wrench
●Nozzle assembly
Reference video
Precautions before operation and machine status
This operation involves the replacement of the print head assembly. Before performing these operations, please turn off the machine and wait for the print head to cool down completely.
Operation steps
1-Remove the print head
1. Power off the printer, unplug the port cable of the fan assembly located directly behind the print head, use a 2.5mm hex wrench to loosen the four fixing screws of the "rear fan assembly", and remove the rear fan assembly.
2. Use a 2.0mm hex wrench to loosen the two fixing screws of the "cable fastener" and the one fixing screw of the whole print head assembly.
3. Press the "horn terminal" on both sides with your hands, the print head cable will pop up automatically, and then remove the print head cable.
4. Use a 2.0mm Allen wrench to loosen the two fixing screws of the "print head front cover" and remove the whole print head assembly.
2-Replace the nozzle assembly
1. Separate the front cover of the whole print head assembly, and unplug the "heater" and "thermistor" cables from the extrusion adapter board.
2. Use a 2.0mm Allen wrench to loosen the two fixing screws of the "nozzle assembly" (loosen but do not unscrew), and remove the "nozzle assembly".
3. Take out the new "nozzle assembly" and place the "nozzle assembly" in the mounting position (install with the cable port facing outward).
4. Use a 2.0mm Allen wrench to tighten the two fixing screws of the "nozzle assembly".
5. Insert the cable port of the thermistor into the "TH" port of the extrusion adapter board, and insert the cable port of the heater into the "HE" port of the extrusion adapter board (pay attention to combing the cables).
3-Install the print head
1. Install the front cover of the whole print head assembly (It has a groove design and can be installed by sliding it in).
2. Place the whole print head assembly into the mounting position in front of the print head, and use a 2.0mm hex wrench to tighten the two fixing screws of the "print head front cover".
3. Press the "horn self-locking terminal" to both sides with your hands to open the port, and then insert the print head cable into the port (note that the cable passes under the top profile).
4. Use a 2.0mm hex wrench to tighten the two fixing screws of the "cable fastener" and the one fixing screw of the print head.
5. Take out the fan assembly, align it with the screw holes mounting position, use a 2.5mm hex wrench to tighten the four fixing screws of the rear fan assembly (install with the air outlet facing downward), and insert it into the fan assembly cable port.
6. Power on the printer, click [Prepare-Temperature] on the touch screen, and then set the nozzle temperature to 210°C in the temperature control interface.
7. Press the extruder handle to feed the filament into the extruder. Click "Extruder" on the touch screen. After setting the length of the extruded filament, click "Load".
8. After observing that the nozzle extrudes the filament normally, the printer can be used normally after re-leveling it.
