¶ Built-in Air Pump
¶ Applicable models of printers
Bambu Lab H2DL
¶ When to use?
- Abnormal built-in air pump functionality
- Built-in air pump failure
¶ Tools and materials needed
H2.0 Hex Key
¶ Safety Warning
It's crucial to power off the printer before conducting any maintenance work, including work on the printer's electronics and tool head wires. Performing tasks with the printer on can result in a short circuit, leading to electronic damage and safety hazards.
During maintenance or troubleshooting, you may need to disassemble parts, including the hotend. This exposes wires and electrical components that could short circuit if they contact each other, other metal, or electronic components while the printer is still on. This can result in damage to the printer's electronics and additional issues.
Therefore, it's crucial to turn off the printer and disconnect it from the power source before conducting any maintenance. This prevents short circuits or damage to the printer's electronics, ensuring safe and effective maintenance. For any concerns or questions about following this guide, open a new ticket in our Support Page and we will do our best to respond promptly and provide the assistance you need.
¶ Remove the Built-in Air Pump
¶ 1.Remove the Rear Panel
-
Use an H2.0 hex key to remove the 11 screws marked with red circles (ST3×6).
-
Use an H2.0 hex key to remove the 12 screws marked with green squares (BT3×8).
-
The screws marked in yellow are for securing the external spool holder (M3x12).
For detailed steps, please refer to this Wiki guide on removing the H2D printer rear panel.
¶ 2.Disconnect Cables and Air Assist Tube
After opening the rear panel, the built-in air pump is located at the lower right of the mainboard.
Press the black ring on the air assist tube coupler and pull the upper air assist tube vertically upward.
Then, disconnect the power cable plug of the built-in air pump.
¶ 3.Remove the Built-in Air Pump Mounting Screws
Use an H2.0 hex key to loosen the bottom and right mounting screws.
Screws marked in red: ST3×4.5
Screw marked in yellow: ST3×6
Next, remove the screw located behind the cable (BT3x6).
¶ 4. Remove the Side Air Pump Intake
Pull out the short air pump intake at the bottom from its connector to remove the entire built-in air pump assembly.
After removing the built-in air pump, pull out the other end of the air assist tube from the pump.
¶ Install the Built-in Air Pump
¶ 1.Install the Side Air Pump Intake
Connect the air assist tube to the new built-in air pump.
Then place the air pump inside the printer and connect the intake to the base.
¶ 2. Install the Built-in Air Pump Mounting Screws
Before tightening the screws, make sure the heated bed cable passes through the air pump bracket to prevent damage during bed movement.
Align the mounting holes of the air pump and use an H2.0 hex key to tighten the following screws:
Three screws marked in red: ST3×4.5
Screw marked in yellow: ST3×6
Finally, tighten the screw located behind the cable (BT3x6).
¶ 3. Connect Cables and Air Assist Tube
Reconnect the power cable to the air pump and insert the top air assist tube into the air assist tube coupler.
¶ 4.Install the Rear Panel
It is recommended to perform a functionality check before reinstalling the rear panel to avoid repeated disassembly if any issues occur.
-
Use an H2.0 hex key to install the 11 screws marked with red circles (ST3×6).
-
Use an H2.0 hex key to install the 12 screws marked with green squares (BT3×8).
-
The screws marked in yellow are for securing the external spool holder (M3x12).
For detailed steps, please refer to this Wiki guide on installing the H2D printer rear panel.
¶ Verify the functionality
Power on the printer and install the laser module. Enable Active Air Assist. If the built-in air pump runs normally and no errors occur, the replacement is complete.
¶ End Notes
We hope the detailed guide provided has been helpful and informative.
If this guide does not solve your problem, please submit a technical ticket, we will answer your questions and provide assistance.
If you have any suggestions or feedback on this Wiki, please leave a message in the comment area. Thank you for your support and attention!