How to wind the string trimmer on my bump-advance string trimmer? The trimmer string is always jamming. I wind it tightly, I wind it loosely, I spray silicone on the string but still it jams. Should I change string size? Could the cut-off blade be the problem? I have seen professionals without...

I am trying to use an AC servomotor in a winding application that will wind with constant tension. I read somewhere that the way was constant HP but this makes no sense as current will be very very high at slower speeds. I have also been trying to use the tension * radius = torque equation but...

How do you rewind the string on a weadeater so that it will feed properly?

How do I wind my McCulloch weed eater