I had a similar problem with my Ford/New Holland backhoe. I tried fixing it, but it happened again. Then I took it to a repair shop in Tyler that I paid to fix it, but didn't. When it happened again, I went to my dealer and they told me of another place to take it that they use with good results. That place told me that the starter was a POS and that they wouldn't work on it, or anything else from Eastern Europe. I want to say Romania, but I don't have a lot of confidence in that. Anyway, they said that they would sell me a brand new Bosch starter that they guaranteed would solve my issues. I think I paid over $200 for that starter back in or around 2005. It's still working great today!!!!