3. Regularly check the amount of waste in the wastebasket placed in the printer’sstorage area. If the basket starts filling up, remove it and empty it. Do not forgetto return it to its place so that any waste produced by the printer will not fallinto the general storage area.Attention:Always turn the printer off before carrying out any type of hardware usermaintenance.9.2 Replacing the NozzleIf the printer is unable to push the molten filament evenly and continuously throughthe nozzle, the nozzle must be replaced. First of all, carry out the following steps:1. Use the screen of the printer (see chapter 7.4, “Working with the PrinterTouchscreen – Replacing the Filament”, page 19) to remove both filaments fromthe printer.2. Select the “Service Position” button in the “Settings” menu and hold it until amessage asks you to turn the printer off.3. Disconnect the tubing from the print head. Press the plastic ring on the mouthof the print head and, at the same time, pull the tubing out. Repeat the processfor each individual tube.4. If the nozzle is hot, wait for it to cool down.5. Using a small knife or another sharp object, remove the silicon gasket from thenozzle.6. Remove the nozzle using the “be3D tool” wrench.7. Insert the screw of the “be3D tool” into the opening where the nozzle had beenplaced and screw it in.DEERED — USER MANUAL 28