I have a 2017 MX5200 HST, with 600 hours. When I press the Electric PTO switch to engage the PTO there is not response to the PTO. I always engage at idle. The last few times that I have used it, the PTO will work and then if I shut if off and try to engage it again, it will not engage. It is getting electrical current. I read somewhere that the clutch might have gone out. Is this a possibility??? How can I determine, for sure??? Is this a DIY job??? I do not necessarily want to take it into the dealer...$$$