The DR Power Premier 300 Chipper Shredder I recently purchased from TSC now runs very well, but only after I adjusted the engine kill tab and the throttle limit screw. Initially, the chipper/shredder was very hard to start. And, when the engine did start, it ran very rough at higher speeds. Fortunately, I noticed that the engine kill tab was arcing to the throttle bracket. (Refer to the red arrow in the attached picture). So, I bent the tab away from the bracket… just enough to stop the arcing, but not so much that the tab no longer contacted the throttle lever in the ‘Stop’ position. After I adjusted the engine kill tab, the engine ran well, but the maximum engine speed was too slow. The engine bogged down much too easily and constantly stalled. However, after I adjusted the throttle limit screw 'out' about 3 threads (refer to the orange arrow in the attached picture), the cutting speed of the engine increased such that the chipper/shredder operated well. The chipper/shredder now operates as it should... but it would've been nice if the machine had been properly adjusted by the manufacturer. While my new DR 300 chipper/shredder now operates 'properly' and I'm satisfied with its performance, customers who are not so mechanically inclined would probably be quite dissatisfied if they encountered the same issues. Bob's bottom line: The DR 300 chipper/shredder is a good machine for residential yard maintenance (when properly adjusted and used as directed).

So I bought this one over the cheaper yellow ones they sell because it had the Briggs & Stratton engine. It ran great until the crankshaft on the engine snapped. I took it to a service center nearby and they took pictures of it and sent them to Generac (which owns DR now), only to be told that the warranty doesn't cover that and I must have put too big a branch in it and it's my fault. This company doesn't stand behind their products and couldn't care less once they've already got your money.