¶ 1. Tools:
M2.5 Allen Wrench
M3.0 Allen Wrench
Phillips Screwdriver
¶ 2. Disassembly Steps:
¶ Step 1: Turn Off the Printer
Before troubleshooting, ensure the printer is turned off and disconnected from the power source for safety.
¶ Step 2: Remove the Top Cover of the Mainboard
Use an M2.5 Allen wrench to unscrew the 4 screws that secure the top cover of the mainboard.
Disconnect the FAN2 fan wire from the mainboard and set aside the mainboard top cover.
¶ Step 3: Remove the Top Cover of the Heated Bed Adapter Pcb
Use an M2.5 Allen wrench to unscrew the 4 screws securing the top cover of the heated bed Adapter Pcb. Then, set the cover aside.
¶ Step 4: Remove the Screws Securing the Power Supply Wires
Kobra 2 Max uses two different connectors to secure wires to the power supply.
Open the transparent cover and, as shown in Figure 1, use a Phillips screwdriver to remove the 3 screws securing the boat-shaped switch wire and the ground wire. Remove the boat-shaped switch wire, including the ground wire.
As shown in Figure 2, use a Phillips screwdriver to loosen the 4 screws securing the mainboard power wire and remove the power wire.
¶ Step 5: Remove the Bottom Metal Plate's Power Supply Screws
First, disconnect the printhead wire harness from the mainboard because it obstructs the screws that need to be removed.
Use an M2.5 Allen wrench to unscrew the 2 screws securing the power supply.
Use an M3.0 Allen wrench to unscrew the 2 screws securing the power supply on the other side.
¶ Step 6: Remove the Power Supply
Remove the power supply. Be prepared for it to get stuck during removal. You can gently wiggle the power supply back and forth to take it out.
¶ 3. Installation Steps:
¶ Step 1: Install the Power Supply
Take out the new power supply. Open the power supply cover and, as shown in the image, remove the 3 screws for later installation.
Install the power supply in its designated position. Align the screw holes and use an M2.5 Allen wrench to pre-lock the 2 screws previously removed on one side.
On the other side, use an M3.0 Allen wrench to pre-lock the 2 screws that were removed earlier. Finally, tighten all the screws.
¶ Step 2: Install the Wiring
When installing the boat-shaped switch wire and ground wire, pass the screws through the circular terminals first and then align them with the screw holes on the power supply to secure them.
When installing the mainboard power wire, since the cable connectors have an open shape, after loosening the corresponding power supply screws, you can insert them directly and then tighten the screws.
After installation, gently pull each wire to check if it's properly secured and if there are any loose connections. If issues are found, please reinstall.
¶ Step 3: Install the Top Cover of the Heated Bed Adapter Pcb
Take the previously removed cover and use an M2.5 Allen wrench to tighten the 4 screws securing the top cover of the heated bed Adapter Pcb.
¶ Step 4: Install the Mainboard Top Cover
Reconnect the printhead wire harness.
Plug in the mainboard cooling fan and use an M2.5 Allen wrench to tighten the 4 screws securing the mainboard top cover.
¶ 4. Voltage Adjustment
Ensure the input mode for the power supply voltage box is correct. Adjust it to the suitable voltage setting based on your local voltage conditions.
¶ 5. Power-On Test
Insert the power cable into the printer, turn on the power switch, and confirm that the touch screen displays correctly. If the touch screen remains black, return to the wiring installation steps and check if the wires are installed in the correct positions.
If the above steps do not provide assistance or if you encounter any other issues during subsequent use, we recommend that you create a support ticket. The after-sales engineers will assist you in finding a solution to the problem(Reply time :1 working day)
Please click this link to submit your ticket: