okay 1st question did you buy from seyco, no is it under warranty still? yes you bought it from seyco call ray . no look on the plastic tension bar needs a flat cut on it., ray sent me one i swapped it out and never had a problem again my saw sees 30 hours minimum a week for 2 years now since he swapped it out . if its out of warranty and he wont swap it (i doubt it) pm me i will take pictures and draw the piece out full size and show you what it needs to look like 5 seconds on sander it will work great