Dealership debate in Coffee Shop Posted May 1 1 hour ago, BOBSIH856 said: ISO bus is a common plug for implements that require a monitor and instead of using indidvidual monitors for each piece of equipment the ISO bus allows the equipment to utilize a single monitor in the tractor. All information should be stored on the balers ECU not on the monitor did the baler have an electrical issue and the ECU replaced? Why would dealer remove the PTO shaft are they a big theft item? At the dealer I work out we remove pto shafts and top links on used machinery. Theft and the element are our reasons.