SPRINGFIELD — Legislation backed by the U.S. Public Interest Research Group would require farming equipment manufacturers to make software required for repairs available to consumers for purchase.House Bill 3061, introduced as the “Digital Right to Repair Act” in February by Democratic Rep. Michelle Mussman of Schaumburg, would mandate that manufacturers, by 2022, provide farmers with the same diagnostic materials available to official repair providers. It would also require the manufacturers to make parts necessary for …