PTO shafts are a great way to transfer mechanical power between tractors and other farm equipment. However, PTO shafts are also the leading cause of entanglement fatalities, which accounts for 30% of agricultural fatalities in Canada. There were 14 deaths caused directly by PTO shafts from 1998-2008 in Canada.

At the end of the day, no piece of equipment is going to properly perform in the field without a good maintenance routine, and any good maintenance routine includes frequent greasing.