Toro #1 brand new this year - 400 hours on it. I run this mower - walking back to trailer after blowing - I notice the wheel is sitting at a slight angle - Looked at the lug nuts but they were tight and thought one more lawn - then I noticed it was hard to keep straight and always pulling to a side. I bring the mower to the dealer the next morning and the wheel motor is lose - 2 nuts missing and the other two are just hangen on. Check the other tire and there all lose but have the nuts on them yet. Toro # 2 - new last year and 760 hours it - same thing today when the guys backed if off the trailer - go to dealer who complained about working an extra hour on saturday and same top 2 nuts gone and others where lose again. Dealer put lock tight on and were off. Took about an hour / mower. Now am I doing something that I shouldn't be with this machine or if the factory in Nebraska just getting lazy?? Should I complain - call TORO - write a letter / email?? TORO #1 has been back to the dealer so many times this year for repair work that I hate to know what will happen in 1000 hours. Had a new spindle replaced, new hud, the entire fan unit on the DFS bagger, I have run off 3 belts, and now this.