We have a PM-34Z that we purchased new 15 months ago. We just took it into the shop to have it serviced and to get the choke fixed which was a recall. Well the dealer just called me back and said the chrome cap on the hydro resivoir broke off and let water into the hydro system. He said it needs to be flushed and this wont be covered under warranty because the system was contaminated. He quoted me $500-$600 to flush the system, replace the cap and he said warranty for the hydro system is now void because of this. Now I just looked at the manual and the mower has a 2 year warranty. We did not brake that cap off nor did it brake off from any accidental damage because it is located UNDER the seat where nothing could have hit it to brake it off. Am I correct in my thinking that this is a manufacturing defect and should be covered under warranty? I just called Gravely and they are calling the service center where the work is being done on it. They are going to call me back shortly they said. I am telling you now if they still refuse to warranty it then they will be hearing from my attorney which happens to be a good friend of ours. We WILL get them to cover this in one way or the other!