I have a 2012 Kioti DK45HSE diesel tractor. The PTO does not consistently engage. If I turn it on the indicator light on the switch does light up, but the PTO doesn’t turn. Sometimes if I drive around, it’ll suddenly engage. Or other times I will turn the tractor on and off and start it again and then it does work. But it’s just not consistent. What are the possibilities and how can I troubleshoot it? I did some preliminary research and some sources point to a solenoid. I know about the fuel shut off solenoid, but I don’t know where the PTO solenoid is if there is such a thing. Can’t seem to find it in the parts manual either.