Prepare the new PTFE tube Insert the connector above the filament runout detection module.
Pass the PTFE tube through the filament hole at the back of the printer. Holding the front part of the tube using a pair of tweezers and pull out the tube.
Insert the PTFE tube into the connector above the print head.
Press the PTFE tube into the cable chain from the terminal of the cable chain to one-third of the distance from the terminal.
Tighten the 2 screws securing the cable chain terminal using a 2.0 mm Allen key.
The printer can be used as usual after checking that the PTFE tube is in proper connection condition and not deformed.