Repairing a Broken Bumper

ID: 240053

Description: Normally, a window cleaning robot should not...

Steps:

1. Empty the fluid reservoir. Remove the mop pad. Unplug the power cord.
2. Place the device with its underside facing up on your workspace.
3. Remove the four screws on the grey mop pad bracket.
4. Lift the grey bracket off.
5. Remove the eight screws underneath the grey bracket.

6. Use a pointed tool to peel off the rubber cap on the underside.
7. Remove the screw underneath.
8. Turn the device over.
9. Carefully lift the top cover slightly. Be careful not to strain the cables underneath too much.

10. Remove the two cable bundles from their retaining clips.
11. You can now flip up the top cover to access all the components inside.
12. Pay special attention to the blower motor; it sits loosely between two soft rubber seals. It must be tightly enclosed again during reassembly.

13. The crack in the bumper is clearly visible here. There are sensors located underneath the bumper; because of the crack, they can no longer trigger correctly.

14. The bumper is nearly free. It is still attached to the sensors in the corners and the hoses to the spray nozzles.
15. Remove two screws from each of the corner sensors.
16. Lift the sensors off. Let them simply hang by the cables.

17. Lift the bumper against light resistance from the right and left sides. Watch out for the hoses to the spray nozzles.
18. Reassembly is easier if you do not disconnect the hoses from the nozzles, but rather at the other end. Carefully cut the cable ties to do this.
19. Carefully remove the bumper.

20. Here is the device shown with the bumper removed.

21. The bumper is made of ABS, which can be easily glued using a suitable adhesive—in this case, superglue with an activator.