I got my weedeater mower around the first of june.Right after assembling i tried it out and when you engage the blade it shakes and shimmies like it is going to take off into the air. It goes like a dream in reverse. I see that someone else had this problem, but I got mine from Amazon.com and tried to save the crate if i had to return it. After talking to the company on the phone they advised me to take it in. I am renting a trailer and taking it in tomorrow, but the company who is going to fix it said something about bringing the warrenty with me. I don't remember anything like that in my box. They said it would be 2 or 3 weeks before they can even look at it, so I will have to hire my lawn done during that time also. What is the way this is handled to take it in..First time I ever had to do anything like this. Thank You