I'm needing help in figuring out why my PTO shuts off. I have a 2010 5105M with about 3600 hours on it. I'm running an MX15 brush hog clipping pastures. I will mow for about 45 minutes and then the service indicator light kicks on and my PTO shuts down. I turn it off and back on and that indicator light kicks back on and shuts the PTO down. I have the let the tractor sit for a while turned off before I can get it to work again. Oil level is good, hydraulic oil level is good. I just put a brand new battery in it. It's driving me crazy and my JD dealer hasn't been much help. They came out late on a Friday afternoon and said the diagnostic codes were only showing "low voltages" and that it could be the battery. I replaced it and it still happens. I'm wondering if something is getting hot and causing it to shut down since it works for a while then shuts off.. Anyone seen anything like this?