I hope it helped you. Check another video I have about modifying the tip of the auger to avoid getting stuck as often as with the stock tip. Thank you for your comment.
Looking at your auger turning above the ground it looks like it is bent or out of round, it will bind up once it is turning in the ground. replace the auger and it will work properly.
You are right, I bend it when I had no idea what i was doing and half way in I moved the tractor forward to get it straight. Thank you for checking the video.
I will try a faster RPM (540). Last holes I made y vas going down very slow and still got stuck. I think it is a combination of speed, rpm and auger tip. Thank you for your feedback.
Not sure about a 231 but a mf135 has a ground drive pto position, if you jack it’s up you can put it in ground drive and put the tractor in reverse and it unscrews.