"DerbyDad03" wrote in message
...
I'm not going to disagree with sa or dpb, but I'll admit that it does
sound strange that if an obstacle is what is causing the problem, you
somehow managed to hit it (or them) with the left blade 4 times and
never with the right.

I wonder if the deck is designed in such a way that if the right blade hits a loose object it gets
deflected or ejected thru the chute, but when the left one hits something it gets wedged and stops
the blade?

Eric Law