ZumoShield front right wheel stuck/jammed

[pnlk20]

Everything was working perfectly till the middle of the day. I have been using my Zumo robot for months.
The right wheel is not rotating freely and smoothly, above all in CCW direction. So now the robot only drives forwards and when it needs to reverse it jams and makes a high pitched sound due to the right wheel.
Perhaps some small debris or hair are stuck somewhere? Should I try and unmount the wheel to remove them? Or have I damaged the motor instead? Please help
Thanks

[PatrickM]

Hello.

This sounds like the same issue we are already discussing in this thread:

Zumo 32U4: one of the wheels does not rotate smoothly

It worked very well till yesterday, and I don’t know what’s happened (no shocks, I think, but of course I cannot swear). The right wheel is not rotating freely and smoothly, above all in CCW direction. I don’t think the wheel was forcedly pushed towards the robot: it does not look jammed though it is. Perhaps some small debris somewhere? Should I try and unmount the wheel? It happened just during a class… one robot out of six is now out of order… Thanks Giorgio

Let’s continue our discussion there.

- Patrick