x585 PTO solenoid problem

Good morning,

I am new to tractors and new to the forum and hope to get some advice on a problem with an x585 with about 500 hours on it that I got used last year.

This winter the PTO engagement became erratic - the PTO engagement switch, RIO switch, and wiring seemed to check out OK. I replaced the PTO engagement solenoid and the problem was instantly fixed.

Now about 30 hours of use later, the PTO will not engage. The dash lights come on appropriately, and the engagement switch, wiring, and RIO switch all continue to check out ok. I have 12 volts at the solenoid wiring harness when the circuit is energized. When I take the PTO solenoid out and put 12 volts across it, the plunger does not move.

It seems awfully strange to have a new solenoid to fail so rapidly - I am wondering if the real problem is somewhere else in the system and this is causing the solenoid to fail. Does anybody have any experience or insight into this problem?

Thanks,

Peter