Table Of Content Unloading the Material Unplugging the Power Cable Material Guide Removal Unplugging the Extruder Cable Hotend Removal Heater and Thermocouple Removal (from the Hotend) Unplugging all Cables from the Extruder PCB Unscrewing the Extruder PCB Extruder Lower Printed Cover Removal Heater and Thermocouple Removal (from the Extruder) New Heater and Thermocouple Assembly (in the Extruder) Extruder Lower Printed Cover Assembly...
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If you have the heater&thermocouple v1, you also have to replace the hotend and the extruder PCB. The following manual shows the M200 repair work. For the M300, these procedures are the same. page 3 / 23...
Unloading the Material If the material is loaded into the extruder, unload the material using the “Material” -> “Unload the material” option in the menu. page 4 / 23...
Unplugging the Power Cable Turn off the printer and unplug the power cable. Wait until the printer – especially the hotend – cools down completely. page 5 / 23...
Heater and Thermocouple Removal (from the Hotend) With a 1.5mm Allen key loosen the two screws that secure the heater and thermocouple in the hotend. Then remove the heater and thermocouple. page 9 / 23...
Unscrewing the Extruder PCB Unscrew the two screws that secure the extruder PCB using a 2mm Allen key. Remove the PCB from the extruder. page 11 / 23...
Heater and Thermocouple Removal (from the Extruder) Remove the heater and thermocouple from the extruder block and from the heat shrink tubing. Unplug the cables from the extruder PCB. page 13 / 23...
New Heater and Thermocouple Assembly (in the Extruder) Plug the heater and thermocouple cables into the extruder PCB. Put them through the heat shrink tubing and inside the extruder’s block. page 14 / 23...
Plugging all Cables into the Extruder PCB Plug all the cables in. Remember to arrange the cables so that they don’t get damaged, e.g. by wrapping against each other. page 17 / 23...
Heater and the Thermocouple Assembly (in the Hotend) Insert the heater and thermocouple into the hotend and firmly tighten the two screws that secure them (using a 1.5mm Allen key). Make sure that the screws don’t go through the insulation that covers the wires (this can happen if the heater goes too deep into the slot).
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This picture shows the heater inserted This picture shows the heater pushed too correctly. far into the slot in the hotend. page 19 / 23...
Material Guide Installation Attach the material guide to the extruder cover. Next, secure the guide to the extruder cable with the material guide clamps. page 22 / 23...