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Cleaning the Drive Gear

    When to Clean the Drive Gear

    The drive gear is the part of the extruder that pushes filament through the extruder. When you make things with your Replicator 2, small pieces of hardened plastic can stick to the drive gear and eventually clog it so it can't grab onto the filament. If you are having problems with your extruder, cleaning the drive gear might help.

    How to Clean the Drive Gear

    1. Unload the MakerBot PLA Filament from the extruder by going to the LCD panel and selecting Utilities > Filament Options > Unload.
    2. Unscrew the two bolts at the lower corners of the fan guard. As one piece, remove the fan guard, the fan, the heat sink, and spacers. Keep these pieces together and set them aside. 

     

    1. Unclip the motor wires.
    2. Pull the motor assembly out.
    3. Find the drive gear on the motor shaft: 


    1. Using a small instrument like a makeup brush, toothbrush or toothpick, remove all the pieces of filament stuck to the drive gear.
    2. Reseat the motor assembly.
    3. Plug in the motor wires.
    4. Add the fan guard, the fan, the heat sink, and spacers to the front of the extruder and bolt them on.
    5. Reload the MakerBot PLA Filament by going to the LCD panel and selecting Utilities > Filament Options > Load.

    If you need additional assistance, the following video will show you how to clean out the drive gear and lubricate the threaded rod:



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