Czandy Canoli

I think I am having a similar problem.  I bought my mower at lowes a little over a year ago.  I have a slight incline in my yard and I noticed that the mower hasn't really worked right from the beginning as far as the self-propelling goes.  I didn't buy a warranty.  Finally, the mower got so hard to pusch that I checked the throttle control and found that it had shredded.  I  bought a new throttle for $30 and when trying to install it, the drive handle parts went flying and now I don't know how to put it back together.  I haven't found a diagram and I've never done something like this before, so not too savvy.  Grrr.  I left Troybilt for Husqvarna too.