Way to go, guys. No doubt, American farmers will be forced to buy their equipment from other countries if other countries', tractors can be repaired in-house.
I seem to remember a plan a decade or two ago have legislators micromanaging the sale of caterpillar Earth moving equipment to China. I believe the end result was Caterpillar building a plant in China to supply China's needs.
Imagine if you changed the oil yourself in your car, but couldn't reset the oil monitor and/or turn off the OIL dash light without paying the dealer $50. Shouldn't be an indentured servant to your Deere, but again, the market will fix this by making even the most loyal farmers purchase their next $500k machine from India, China, wherever.
This is the new source of income for many companies. I service a specialty clock made in Switzerland and used to be able to buy parts from the manufacturer. Now, they have quit selling parts to independents like me, and customers are forced to take their clock to a 'certified' shop (which is basically a retail dealer) and pay exorbitant prices for both parts and labor.
Unfortunately, if manufacturers of anything bind together, they can make the purchase price just the beginning of the income stream. This has the unspoken side-effect of making quality less important to the manufacturer. They just need to be able to get through the warranty period.