Seems that we get past one thing and question another. Sorry everyone, but we are newbies to the tractor, so please bear with us. Our B2320 has a belly mower that works beautifully BUT after using several times, we are finding that on 'hard' turns, the tractor 'jerks'. We have tried it with and without the mower engaged. It still jerks. We have checked the transmission fluid and the level appears spot-on. Looking for suggestions. Thanks all!