I bought a used unit and it did a great job. It stopped picking up leaves and long story short I wound up sending it for a repair and it needed a new motor. I got it back and it was acting like it had a loose connection. They made me pay to send it back (!) and said they would pay the return if it was their error which it turned out it was. Several months have gone by and now the same thing is happening. I can wiggle the unit or the cable and have it start and stop up. I am tempted to take it out and repair it myself but have not been able to find anything on the internet telling me how to go about it. Does anyone out there no how and could they give me detailed directions? Thanks!