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How to Replace the Heated Bed Power Supply Cable

[ Manual Pro2 Series - How to Replace the Heated Bed Power Supply Cable - V1.0 ]


Tools:

①  Zip ties

②  Flat head screw driver

③  Spatula

④  Flush cutter


1. Select the Z home button to home the Z-axis. Once the bed is homed, lower the bed by selecting the down arrow to lower the bed until a screwdriver can reach the terminal block.

Note: You can set the height to 50-100mm.


2. Turn off the power and remove the back panel.

 

3. Remove the heated bed cable socket with a 3mm flat head screwdriver.


4. Open the buckles of the cable chain with a small flathead screwdriver. Remove the heated bed sensor.


5.Carefully put the printer down with the filament door facing up, and open the cover of motion controller board.

Note: Open the motion controller board by removing the panel with the lightning bolt on it.


6. Remove the heated bed cable with a flat head screwdriver.


7. Remove plastic bellows under the printer and cut the zip ties. Pull out the heated bed cables (the thickest one among the wires). In some cases, it may be difficult to access the wires without removing the bottom panel.


8. Cut every zip tie that attaches the heated bed cable along the frame of printer. Remove the old cable and replace it with a new one.


9. Connect the new cable to the wiring harness with a zip tie.

 

10. Install the new one to the motion controller board.

Note: The red wire is inserted into positive and the black one is inserted to the negative.


11. Install the heated bed cable wires into the power socket holes and reinstall the screws with a 3mm flat head screwdriver. Close the cable chain and plug the sensor cable together.

Note: Do not insert down to wire insulation or it may cause electrical short; the red (power) wire should be aligned with the corresponding red wires on both sides of the power socket.


12. After tightening the terminal block, you can check whether the four wires are installed in place by pulling each wire.


[ Manual Pro2 Series - How to Replace the Heated Bed Power Supply Cable - V1.0 ]