Elegoo Mars 3 Limit Switch Replacement

ID: 153078

Description:

Steps:

1. Remove 6 screws.
2. 12.5mm self tapping screws with 2.0mm hex socket head

3. Use a small flat-headed screwdriver, spudger, or similar to pry open the lid enough to be able to get a grip of it and pull straight back and then fold down.
4. The back of the lid has a PCB with cables connecting it to the motherboard inside the unit. While not particularly fragile, do take care so you do not damage the connectors.

5. In my case the replacement limit switch was delivered already connected to a cable. If you are only replacing the actual switch you can skip this step and instead unplug the opposing end on the switch itself later..
6. Remove the limit switch cable connector in the bottom right corner by pulling it straight out.
7. Be sure to pull the connector, and not the cables!

8. Remove the two screws securing the limit switch.
9. M4x7.5mm socket screw with 2.5mm hex socket head
10. Hold the limit switch in the lower end and pull it downwards.