My blades quit working and when I checked the electronic engagement wire to the clutch, I found that the belt had rubbed against it and caused the wires to bare up, so I ordered a new piece to replace the bad one. It came in the mail today, and I put it on. It will not engage the clutch however I hear a click like it wants to engage it. What can be the problem? Any and all ideas are welcome at this point. Thank you.