Heat Bed Signal Cable – Tools and Preparation
Use an H2.0/1.5 hex key and tweezers, and ensure the power cord is disconnected before beginning.

Step 1: Remove the Rear Panel and Excess Chute
Remove the rear panel and the excess chute by following the corresponding disassembly steps for those components.


Step 2: Remove the Cable Railing
Use an H2.0 hex key to remove the two screws, then take off the cable railing.


Step 3: Disconnect the Heat Bed Signal Cable
Disconnect the MC-AC cable first, remove the silicone covering the heat bed signal cable, then unplug the signal cable.


Step 4: Loosen the Heat Bed Signal Cable from the Cable Mesh
Release the heat bed cables from the cable buckles, remove the tape at both ends of the cable mesh, and pull out the signal cable.


Step 5: Raise the Heat Bed
Lay the printer on its right side and raise the heat bed to about two-thirds of its travel by gently pulling the Z-axis belt.


Step 6: Remove the Holding Plate
Unscrew the two screws securing the holding plate, then remove the plate.


Step 7: Unlock the Heat Bed
Return the printer to an upright position and remove the six screws securing the heat bed.


Step 8: Take Off the Heat Bed
Turn the heat bed over, gently pull the cables slightly toward the heat bed, then place the heat bed face down on the bottom surface of the printer.


Step 9: Remove the Leveling Nuts
Remove the three leveling nuts and their rubbers, then take out the screw securing the ground cable.

Step 10 - Open the heat bed bracket
Flip from left to right to open the heat bed bracket, note that there is a 2PIN cable connecting on the board, do not damage it.