When to use

When there is a lot of material residue and debris inside the filaments hub, which increases the resistance of feeding and returning filaments, it is recommended to disassemble the filaments hub for internal cleaning.

Tools and materials needed

  • H2.0 & H1.5 hex key
  • Cleaning tools (clean cloth, brush, blower, etc.)

Operation guide

Step 1 – Remove the filaments hub from the AMS

Please refer to Replace AMS filaments hub to remove the filaments hub from the AMS and separate the motor.

Step 2 – Remove the button of filaments hub

Unlock the 4 claws and remove the button.

Step 3 – Remove the driving gear unit

Remove 4 screws with an H1.5 hex key, and then remove the protective cover and the driving gear unit.

Step 4 – Separate the upper and lower shells

Remove 6 screws with an H1.5 hex key, separate the upper and lower shells of the filaments hub. Be careful that there may be  tube fittings loose when disassembling.

Step 5 – Internal cleaning

Remove material residue and dust with the cleaning tools from the gears, tube fittings, passages and some clearances.

Step 6 – Check the orientation of the magnets 

Make sure that the 4 magnets are facing the correct direction. If you find that the direction is wrong, please refer to  Remove and install the magnets in filaments hub to reinstall the magnet in the wrong direction after completing step 10 on this page.

Step 7 – Install the tube fittings

After the cleaning is complete, install the 5 tube fittings.

Step 8 – Assemble the upper and lower shells

The upper and lower shells of the filaments hub can be initially fixed by the 6 claws, and then lock in 6 screws.

Step 9 – Install the driving gear unit of the filaments hub 

Install the driving gear unit of the filaments hub and its protective cover, and lock in 4 screws.

Step 10 – Install the button

 Install the button of the filaments hub, and press the button to confirm that the action is smooth.

Step 11 – Install the AMS filaments hub

Please refer to Replace AMS filaments hub to install the motor on the filaments hub and assemble the AMS.

Step 12 – Check the function of the filaments hub

How to verify completion/success

Connect the AMS to the printer and turn the power ON. Load filaments to all slots of the AMS and click “Load” on the screen to start loading the filament.

After the filament in slot 1 loads, choose AMS slot 2 to load the filament in slot 2, and then load the filament in slot 3 & slot 4.

If all the loading process functions are OK, the installation is complete and successful.

Otherwise, check the connections of all the cables and PTFE tubes. If no errors are found and the malfunction continues, contact the Bambu Lab service team for further assistance.

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