I recently bought an older Metro HP Ser 161xxx and the downloadable Operator and Parts manuals have been really useful. Is there a maintenance / repair manual available? If so, can I get it from my dealer? Part number? Appx price? The machine is mostly straighforward, but I like to have service manuals for all my equipment. Thanks! This is my first exmark and I am impressed. I bought and installed the mulch kit and the cut is great.