WANHAO Duplicator 4, User Manual

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Cleaning the Drive Gear
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The drive gear is the part of the extruder that pushes filament through the
extruder. When you make things with your wanhao 3d printer , small pieces of
hardened PLA/ABS can stick to the drive gear. If you are having problems with
your extruder, cleaning the drive gear might help.
1. Unload the wanhao PLA/ABS Filament from the extruder. To start the script for
unloading the wanhao PLA/ABS Filament, go to the LCD panel and select Utilities
> Filament Options > Unload.
2. Unscrew the two bolts at the lower corners of the fan guard using the 2.5 mm
hex key included with your duplicator 4/4X .As one piece, remove the fan guard,
the fan, the heat sink, and spacers. Keep these pieces together and set them aside.
3. Unclip the motor wires.
4. Pull the motor assembly out.
5.
Find the drive gear on the motor shaft.Using a small instrument like a makeup
brush, toothbrush or toothpick, remove all the pieces of filament stuck to the
drive gear.
6. Reseat the motor assembly.
7. Plug in the motor wires
8. Add the fan guard, the fan, the heat sink, and spacers to the front of the
extruder and bolt them on.
9. Reload the wanhao PLA/ABS Filament. To do this, go to the LCD panel and
select Utilities > Filament Options > Load.
E Troubleshooting , Diagnostics , and Maintenance
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