I have a CC model 1440. It has the 14hp twin cylinder engine that runs perfectly. If I just run the engine, it charges as it's supposed to. If I flip on the switch for the pto for the mowing deck, the generator light comes on for a few seconds and then goes out. The whole time it's run with the pto on for the deck, the battery discharges. Any ideas what could be wrong? I'm thinking the pto is shorting internally, but don't want to replace it and find that's not the problem. Suggestions? Thanks.