Disassembling an Extruder
Occasionally you may need to take the extruder apart for troubleshooting purposes. This is a simple process that will require no tools other than the 2.5 mm hex wrench you received with your MakerBot Replicator 2.
How to Disassemble an Extruder
- Unload the MakerBot Filament from the extruder. To run the script for unloading filament, go to the LCD panel and select Utilities > Filament Options, then select Unload.
- Once any filament is unloaded, switch off the power on the MakerBot Replicator 2 and unplug the power supply. Pull on the connector to release it from the power input port.
Unscrew the two bolts at the lower corners of the fan guard using the 2.5 mm hex wrench included with your MakerBot Replicator 2. As one piece, remove the fan guard, the fan, the heat sink, and spacers. Keep these pieces together and set them aside.
Unclip the motor wire.
Pull the motor assembly out.
The extruder is now broken down into its main assemblies.
It may help to watch the "cleaning the drive gear" part of this video, beginning at 1:27: