Clean the S-line feeders

The feeders forward filament to the print head. To make sure that exactly the right amount of material is extruded, it is important that the feeder gears can turn smoothly.

After many hours of printing, or when the material has been ground down, there is a chance that there are small filament particles in the feeders. It is recommended to clean the inside of the feeders after three months. In order to do this, the feeders must be opened up.

Instructions

Caution: Before you start, turn off the printer or ensure it is disabled in the Ultimaker Digital Factory to prevent new print jobs from starting remotely.

Tip: For the Pro Bundle, or the Ultimaker S5 with Material Station, only start this maintenance action when all materials have retracted to the Material Station. 

The following steps need to be performed for both feeder 1 and feeder 2.

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1. Unload material 2. Reduce feeder tension

In the Configuration menu, select Unload for both materials. Take the filament out of the feeders. You can, but do not have to, remove the spools from the spool holder. Next, turn off the printer.

 

Reduce the tension of the feeder by turning the bolt in the top of the feeder with the hex screwdriver, until the indicator is completely at the top.

 

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3. Remove Bowden tube and collet 4. Open feeder

Remove the clamp clip from the feeder-end of the Bowden tube, press down on the tube coupling collet and pull the Bowden tube upwards out of the feeder. Next, remove the tube coupling collet too.

 

Use the hex screwdriver to loosen the four bolts of the feeder housing. Carefully pull the front part of the feeder away from the printer and put it aside.

 

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5. Clean the feeder

6. Reassemble the feeder

Use a small brush to gently clean all filament particles from the knurled wheel, the flow sensor axis, and the inside of the feeder housing.

Place the front part over the feeder again and firmly push it into place. Insert the four bolts and tighten them in a cross pattern, starting in the top-left corner.

Tip: Ensure that all feeder parts are still in place. If the feeder ring at the bottom came out, place it back with the widest side at the bottom. Ensure that the top of the tension indicator bolt is inside the feeder housing.

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7. Insert collet and Bowden tube

8. Reset feeder tension

Place the tube coupling collet back into the feeder, then push in the Bowden tube. Secure it with the clamp clip.

Reset the tension of the feeder by turning the bolt in the top of the feeder, until the indicator is at the middle mark (or the correct tension setting for your material).

Note: Before reloading your materials, check if other maintenance actions are also required, such as cleaning the Bowden tubes (once a month) or lubricating the feeder gear (once a year). Work efficiently by combining the maintenance actions.

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