Thanks for the advice Kepple, I appreciate any I can get. We are really on top of maintenance with all of our machines. Every piece inspected and reported daily, oil, filter,fuel and air filters every 250 hours, greased daily, cleaned daily etc. sure it is overkill but we rarely ever have break downs, all our machines look new (receive comments all the time) and we have lists of people willing to pay top dollar if we ever want to sell anything. How are you liking your new 4600? any pictures of it in action.