No offense, but your seller doesn't sound like someone I would want to take advice from, based on the product he sold you and the lack of support. If he put ROPS on the machines he sold, he wouldn't need to give bad advice about turning front wheels around as a supposed way to protect you from rollover. The spindles and axles were not engineered for the force that is put on them when the wheel is turned out. It's fine to turn the rears out, but not the fronts. However...we have wheel bearings for most grey Yanmar models, and spindles for some of the 2wd models, so we can supply the parts when they fail prematurely.
Let me say one more thing to all readers, and please read this carefully before replying to this post. I know that many have turned them out and seen no consequence to date. That does not mean there is not a cumulative effect of fatigue on the parts involved. If you want to turn them out, or keep them turned, by all means do so. What I am stating here is the result of our experiences with the tractors and with parts calls. I would not turn the front wheels out on mine. Nor would I rely on a 4" wider front end to protect me from rollover when OSHA approved ROPS are so available.
Let me say one more thing to all readers, and please read this carefully before replying to this post. I know that many have turned them out and seen no consequence to date. That does not mean there is not a cumulative effect of fatigue on the parts involved. If you want to turn them out, or keep them turned, by all means do so. What I am stating here is the result of our experiences with the tractors and with parts calls. I would not turn the front wheels out on mine. Nor would I rely on a 4" wider front end to protect me from rollover when OSHA approved ROPS are so available.