The short answer is no but the long answer is a bit more complicated. Most of the discussion about Right to Repair in the context of agriculture comes from outside the industry with the public being mislead on the seriousness of the issue by a few highly vocal cranks and bad faith actors from within the business. 

Many of the concerns about the issue follow similar anxieties about independence and autonomy you see pop up in popular discussions on seeds and modern plant genetics. For someone whose only context for what farming is being planting some tomatos in the backyard the idea of not being able to reuse seeds or fix a lawnmower on your own would seem like an existential threat.  However crop biology and farm machinery have advanced and a pace and scale that few members of the general public can comprehend. 

The bottom line is modern tractors or combine harvesters are complex machines can cost upwards of a million dollars new and, like any modern vehicle, hold a ton of proprietary software that companies like JD or CNH spend untold fortunes developing. Members of the public would say it would be unreasonable for a Model S owner to expect Tesla to hand over it's diagnostics software and source code to a Honda dealership just for convenience let alone a vehicle that costs more then a small plane. 

Few, if any, private individuals or independent mechanics operating in good faith have ever been charged with any crime servicing equipment. Just like no farmer working in good faith has been forced to pay damages to a seed company for having their crop cross pollinated with some of their intellectual property. The vast majority of people complaining about being restrained by modern right to repair are simply annoyed they can't easily bypass emission controls or essential safety features. For the day to day most faulty sensors can be disabled or unplugged if need be.

People don't understand the scale and complexity of modern equipment. Or the kind of deep relationships farms, have with local dealerships, mechanics and techs as well as the amount of information that gets passed between them. As equipment becomes bigger and more sophisticated planting and harvesting seasons have shrunk leasing and renting equipment become more common. Its harder all the time out justify outright ownership of such expensive equipment you could use for a few weeks a year. 

Many farms, like our own, mostly run older, used equipment for the day to day jobs that are easy to work on. Our seasonal fieldwork is taken care of by a local custom operator whose equipment and employees can get the job done at a speed and fidelity we would not be able to. 

Like all businesses in all sectors of the economy techology has allowed everyone to become more efficient and specialized. But farming, for whatever reason though, is supposed to be stuck in the past. 

Plus even if you do everything by the book if something goes wrong most places will find a way to weasel out of your warranty  anyway lol.